JPS6236343A - Production of malonic acid diester - Google Patents

Production of malonic acid diester

Info

Publication number
JPS6236343A
JPS6236343A JP60173291A JP17329185A JPS6236343A JP S6236343 A JPS6236343 A JP S6236343A JP 60173291 A JP60173291 A JP 60173291A JP 17329185 A JP17329185 A JP 17329185A JP S6236343 A JPS6236343 A JP S6236343A
Authority
JP
Japan
Prior art keywords
compound
rhodium
iridium
reaction
catalyst
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP60173291A
Other languages
Japanese (ja)
Other versions
JPH0149343B2 (en
Inventor
Kiyonori Shinoda
篠田 清徳
Kazuo Tamashima
玉島 一雄
Norio Tachikawa
舘川 憲雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Denka Co Ltd
Original Assignee
Denki Kagaku Kogyo KK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Denki Kagaku Kogyo KK filed Critical Denki Kagaku Kogyo KK
Priority to JP60173291A priority Critical patent/JPS6236343A/en
Publication of JPS6236343A publication Critical patent/JPS6236343A/en
Publication of JPH0149343B2 publication Critical patent/JPH0149343B2/ja
Granted legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

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  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE:To readily improve the yield with an high catalyst efficiency and simple operation, by reacting a halogenated acetic acid ester with carbon monoxide and an alcohol in the presence of a rhodium compound, etc., to give the titled compound useful as a raw material for medicines, etc. CONSTITUTION:A halogenated acetic acid ester is catalytically reacted with carbon monoxide in the vapor phase in the presence of a rhodium compound or iridium compound and a coexisting iodine compound as a catalyst in the presence or absence of an ester, ether or acetal at 100-300 deg.C to afford the aimed compound. RhCl.3H2O, Rh(NO3)3, etc. may be used as the rhodium compound, and IrCl3.3H2O, IrCl4, etc., may be used as the iridium compound. NaI, KI, etc., may be preferably used as the iodine compound. The rhodium and iridium compounds are preferably supported on active carbon in use and the amount of the iodine compound to be added is preferably at 1:0.1-1:10 molar ratio based on the rhodium or iridium compound.

Description

【発明の詳細な説明】 (産業上の利用分野) の原料とし【利用され℃おり、その安価な製造方法の確
立が望まれているものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) It is used as a raw material for industrial applications, and it is desired to establish an inexpensive manufacturing method.

(従来の技術) 従来、ハロゲン化酢酸エステルと一酸化炭素を反応させ
てマロン酸ジエステル?I−1!!造する方法が提案さ
れている。例えば特公昭56−16134号公報には、
液相でアルコールと塩基及びロジウム触媒及び場合によ
り沃素化合物の存在で行なう方法が提案布下でロジウム
化合物またはイリジウム化合物を触媒として気相接触反
応させて行なう方法を提案した。
(Prior art) Conventionally, malonic acid diester was produced by reacting halogenated acetate and carbon monoxide. I-1! ! A method has been proposed to create For example, in Japanese Patent Publication No. 56-16134,
A method in which the reaction is carried out in the liquid phase in the presence of an alcohol, a base, a rhodium catalyst, and optionally an iodine compound has been proposed.A method in which a gas phase catalytic reaction is carried out in the presence of a rhodium compound or an iridium compound as a catalyst has been proposed.

(発明が解決しようとする問題点) 従来技術のこれらハロゲン化酢酸エステルを一酸化炭素
と反応させてマロン酸ジエステルを製造する方法は、以
下のような問題点t′4i″fるものであった。
(Problems to be Solved by the Invention) The conventional methods of producing malonic acid diester by reacting these halogenated acetic esters with carbon monoxide have the following problems. Ta.

(1)  これらの方法はいずれも単位触媒量あたりの
マロン酸ジエステルの生成量が少ない。
(1) All of these methods produce a small amount of malonic acid diester per unit amount of catalyst.

(2)液体状のハロゲン化酢酸エステルを反応させる方
法は、反応で生成するハロゲンを捕捉するために多量の
塩基性化合物を必要とするため、反応物と塩基性化合物
との均一な混合に工夫を有し、反応後のハロゲン化金属
塩をマロン酸ジエステルや触媒と分離するのに濾過や抽
出などの複雑な操作を必要とする。
(2) The method of reacting liquid halogenated acetate ester requires a large amount of basic compound to capture the halogen produced in the reaction, so we devised ways to uniformly mix the reactant and basic compound. It requires complicated operations such as filtration and extraction to separate the metal halide salt from the malonic acid diester and catalyst after the reaction.

本発明はこれらの問題点を解決し、より簡単な操作で効
率の良いマロン酸ジエステルの製法を提供すべく鋭意研
究を重ねたものである。
The present invention is the result of extensive research aimed at solving these problems and providing a method for producing malonic acid diester that is simpler and more efficient.

(問題A’l解決するための手段) 本発明は、ロジウム化合物またはイリジウム化合物の存
在下、エステル類、エーテル類またはアセタール類を存
在させまたはさせずして、ハロゲン化酢酸エステルと一
酸化炭素を反応させるにあたり、沃素化合物の共存下、
気相接触反応させることを特徴とするマロン酸ジエステ
ルの製法である。
(Means for Solving Problem A'l) The present invention provides a method for combining halogenated acetate and carbon monoxide in the presence of a rhodium compound or an iridium compound, with or without the presence of esters, ethers, or acetals. During the reaction, in the presence of an iodine compound,
This is a method for producing malonic acid diester, which is characterized by carrying out a gas phase catalytic reaction.

以下本発明を更に詳しく説明する。The present invention will be explained in more detail below.

本発明に使用するハロゲン化酢酸エステルは沸点250
℃以下のものであれはWtCV&定されないが、メチル
、エチル、n−プロピル、イソゾロぎル等の低級アルキ
ルエステルが好ましく、ハロゲン置換基としてはいずれ
でもよいが、特に塩素および臭素が好ましい。
The halogenated acetate used in the present invention has a boiling point of 250
℃ or less, WtCV& is not specified, but lower alkyl esters such as methyl, ethyl, n-propyl, and isozologyl are preferred, and any halogen substituent may be used, but chlorine and bromine are particularly preferred.

本発明に使用するエステル類は沸点200℃以下のもの
であれば4vIC限定されないが、好ましくは酢酸メチ
ル、酢酸エチル、酢酸n−プロピル、酢酸イソプロピル
等の酢酸エステル類であり、ハロゲン化酢酸エステルの
エステル残基と同一のアルヤル基を有する酢酸エステル
が有利である。例えば、ハロゲン化酢酸メチルであれば
酢酸メチル、ハロゲン化酢飯インプロtルであれば酢酸
イソゾロビルの如(である。
The esters used in the present invention are not limited to 4vIC as long as they have a boiling point of 200°C or lower, but are preferably acetate esters such as methyl acetate, ethyl acetate, n-propyl acetate, isopropyl acetate, and halogenated acetate esters. Preference is given to acetate esters which have the same aryal group as the ester residue. For example, methyl acetate is used for halogenated methyl acetate, and isozorovir acetate is used for halogenated vinegar improt.

本発明に使用するエーテル類は、沸点200℃以下のも
のであれは特に限定されないが、好ましくはジメチルエ
ーテル、ジエチルエーテル、ジ−n−プロピルエーテル
、ジイソプロピルエーテル等の低級ジアルキルエーテル
であり、ハロゲン化酢酸エステルのエステル残基と同一
のアル千ル基を有するジアルキルエーテル類が有利であ
る。例えば、)・ロゲン化酢酸メチルであればジノチル
エーテル、ノ・ロデン化酢酸イソノロビルであれは、ジ
イソプロぎルエーテルの如くである。
The ethers used in the present invention are not particularly limited as long as they have a boiling point of 200°C or lower, but are preferably lower dialkyl ethers such as dimethyl ether, diethyl ether, di-n-propyl ether, diisopropyl ether, and halogenated acetic acid. Preference is given to dialkyl ethers which have the same alkyl group as the ester residue of the ester. For example, dinotyl ether is used for methyl acetate, and diisoprogyl ether is used for isonorovir acetate.

本−H6明に便用するアセタール類は沸点200 ”O
以下のものであればt#に限定されないが、好ましくは
メチラール、ジエチルアセタール等である。
The acetals commonly used in this book have a boiling point of 200 ”O
The following compounds are not limited to t#, but methylal, diethyl acetal, etc. are preferable.

本発明に使用する一酸化炭素は特に純粋である必要はな
く、不活性ガスが共存するものを用いても良□い。
Carbon monoxide used in the present invention does not need to be particularly pure, and carbon monoxide containing an inert gas may be used.

本発明において触媒として用いるロジウム化合物は、ロ
ジウムのハロゲン化物、無機酸塩または錯化合物であり
、例をあげればhq*、5H2o 、 ’ RhBr5
e2H20、Rh(NOs)3.Rh5(Co)4cj
s *Rh(Co)Cj(P(CaHs)s〕2 、 
RhCj(P(0,6H6)s13 、 nhgo3@
5H20、(NH4)3RhCj6 * RhX3”X
H2O、等である。これらの化合物は高純度の必要はな
く、例えば塩化ナトリウム、塩化カリウムのような塩類
が含まれていてもさしつかえない。
The rhodium compound used as a catalyst in the present invention is a rhodium halide, an inorganic acid salt, or a complex compound, and examples thereof include hq*, 5H2o, 'RhBr5
e2H20, Rh(NOs)3. Rh5(Co)4cj
s *Rh(Co)Cj(P(CaHs)s)2,
RhCj(P(0,6H6)s13, nhgo3@
5H20, (NH4)3RhCj6 *RhX3”X
H2O, etc. These compounds do not need to be highly pure, and may contain salts such as sodium chloride and potassium chloride.

イリジウム化合物としてはイリジウムのハロゲン化物、
無根酸塩または鉛化合物であり、例をあげればIrCl
4113■20.工rcj4 @ XrBr3”4H1
0mCNH4)!I工rツ6.工rα(co)、等であ
る。これら化合物は高純度の必会はな(、例えば塩化ナ
トリウム、塩化カリウムのような塩類が含まれてい【も
さしつかえない。
Iridium compounds include iridium halides,
Root-free salts or lead compounds, such as IrCl
4113■20. Engineering rcj4 @XrBr3”4H1
0mCNH4)! I-engineering6. engineering rα(co), etc. These compounds must be of high purity (for example, they may contain salts such as sodium chloride and potassium chloride).

本発明において触媒に添加する沃素化合物としては、金
属沃化物が使用される。例2あげれば、Li工。
In the present invention, a metal iodide is used as the iodine compound added to the catalyst. For example, li engineering.

Km 、 Na工、 Ba工2.C8工、 R1)工、
 Co工2 、 Oa工29等であるが、好ましくは、
)Ta工、 Kx、 Ba工2である。
Km, Na engineering, Ba engineering 2. C8 engineering, R1) engineering,
Co work 2, Oa work 29, etc., but preferably,
) Ta work, Kx, Ba work 2.

またこれら沃素化合物は水和物でもさしつかえない。□
ロジウム化合物及びイリジウム化合物を工、通常活性炭
、アルミナ、シリカ、珪藻土、軽石、ゼオライト、モレ
キエラシーデなど不活性な担体に担持させて使用するが
、!#に活性炭が好ましい。この場合、ロジウム化合物
またはイリジウム化合物の担持量はロジウムまたはイリ
ジウム金属換算で0.5〜20重XSの範囲で用いれば
十分である。ロジウムまたはイリジウム化合物の担体へ
の担持は公知の触媒調製法で行われる。
In addition, these iodine compounds may be hydrated. □
Rhodium compounds and iridium compounds are usually supported on inert carriers such as activated carbon, alumina, silica, diatomaceous earth, pumice, zeolite, and molechielase. Activated carbon is preferred for #. In this case, it is sufficient to use the supported amount of the rhodium compound or iridium compound in the range of 0.5 to 20 weight XS in terms of rhodium or iridium metal. The rhodium or iridium compound is supported on the carrier by a known catalyst preparation method.

沃素化合物はロジウム化合物及びイリジウム化合物と一
様に担体Ka持させて使用する。この場合、ロジウム化
合物またはイリジウム化合物と同時に担持させ【も、あ
るいは別々に担持させても良いが、好ましくは別々に担
持させ4・ことが有利である。この場合、沃素化合物の
添加量は、ロジウム化合物またはイリジウム化合物に対
して、モル比で1 : 0.01〜i:so、好ましく
は1 : 0.1〜1:10である。
The iodine compound and the rhodium compound and the iridium compound are used in a state where they are supported on a carrier Ka. In this case, the rhodium compound or the iridium compound may be supported simultaneously or separately, but it is advantageous to support them separately. In this case, the molar ratio of the iodine compound to the rhodium compound or iridium compound is 1:0.01 to i:so, preferably 1:0.1 to 1:10.

本発明の反応に、−酸化炭素及び気体状のハロゲン化酢
急エステル、更に必要に応じて気体状のエステル類また
はエーテル類またはアセタール類をその筐ま、あるいは
不活性ガスで希釈して気相状態で触蝋上に→いて行われ
る。反応装置は気相反応に用いる過電の固定床反応器が
用いられる。反応温度はioo’c〜300 ”Cが好
ましく、圧力は常圧下で進行するが、若干加圧しても行
うことができる。
In the reaction of the present invention, -carbon oxide and gaseous halogenated acetic acid ester, and if necessary, gaseous esters, ethers, or acetals are added in a gaseous phase by placing them in a container or diluting them with an inert gas. It is performed while standing on a touch wax. The reactor used is a supercharged fixed bed reactor used for gas phase reactions. The reaction temperature is preferably ioo'c to 300''C, and the reaction proceeds under normal pressure, but it can also be carried out under slightly increased pressure.

原料の使用比率はハロゲン化酢I賀エステル1モルに対
して一酩化炭素は1〜100モル、エステル類は1〜5
0モル、エーテル類は1〜50モル、アセタール類は1
〜50モルの範囲が好ましい。原料ガスの触媒Wlとの
触媒時間は0.2〜10秒の範囲が好筐しい。
The ratio of raw materials used is 1 to 100 moles of carbon monodrunide and 1 to 5 moles of esters per 1 mole of halogenated vinegar Iga ester.
0 mol, 1 to 50 mol for ethers, 1 for acetals
A range of 50 moles is preferred. The catalytic time of the raw material gas with the catalyst Wl is preferably in the range of 0.2 to 10 seconds.

反応後反応管からDト出された反応物は、常法に従って
冷却凌栂し、盛w操作を得゛C1マロン酸ジメチルとし
て取得される。
After the reaction, the reactant discharged from the reaction tube is cooled in accordance with a conventional method and obtained as C1 dimethyl malonate.

(実施例) 次に実施例により、本発明を具体的に説明する。(Example) Next, the present invention will be specifically explained with reference to Examples.

実施例1 RhCl3・5a、o 19 k球状活性炭iogに1
&看させた後、さらKKKO26!t Nを吸着させた
触媒を内径25膓、高さ600鵬の耐熱ガラス製反応管
に充填した後、200℃に加熱して一鹸化炭素を毎時0
.13モルの速度で1時間尋人した。次に、−酸化炭素
及びモノクロ覧酢醗ノチルをそれぞれ毎時0.25モル
、0.06モルの速度で175℃に維持された予熱器を
通し【混合ガスとし反応管に導入した。反応温度175
“0、常圧下に反応させた。
Example 1 RhCl3.5a, o 19k spherical activated carbon iog 1
&After watching over, KKKO26! A heat-resistant glass reaction tube with an inner diameter of 25mm and a height of 600mm was filled with the catalyst adsorbed with tN, and then heated to 200°C to generate monosaponified carbon at 0% per hour.
.. It was heated for 1 hour at a rate of 13 moles. Next, carbon oxide and monochrome acetate were introduced into the reaction tube as a mixed gas through a preheater maintained at 175° C. at a rate of 0.25 mol and 0.06 mol per hour, respectively. Reaction temperature 175
“0, the reaction was carried out under normal pressure.

反応生成物をガスクロマトグラフィーで分析した結果、
マロン酸ジメチルが第1表の生成速度で生成した。また
反応開始後72時間までのマロン酸ジメチルの総生成量
は432モル/KP−触媒であった。
As a result of analyzing the reaction product by gas chromatography,
Dimethyl malonate was produced at the production rate shown in Table 1. The total amount of dimethyl malonate produced up to 72 hours after the start of the reaction was 432 mol/KP-catalyst.

第1表 実施例2 に工0.659 k Na工@2H,OO,57!iに
変え【実施例1と同様に行った。
Table 1 Example 2 Ni 0.659 k Na 2H, OO, 57! i [The same procedure as in Example 1 was performed.

反応生成物をガスクロマトグラフィーで分析した結果、
マロン酸ジメチルが第2表の生成速度で生成した。
As a result of analyzing the reaction product by gas chromatography,
Dimethyl malonate was produced at the production rate shown in Table 2.

また反応開始後72時間までのマロン酸ジメチルの総生
成量は468モル/を一触媒であった。
The total amount of dimethyl malonate produced up to 72 hours after the start of the reaction was 468 mol/catalyst.

第2表 実施例3 に工0.65 II’k Ba工寓52H201,62
1K変えて実施例1と同様に行った@ 反応生成物をガスクロマトグラフィーで分析した結果、
マロン酸ジメチルが第3表の生成速度で生成した。
Table 2 Example 3 Ni 0.65 II'k Ba 52H201,62
The reaction was carried out in the same manner as in Example 1 with 1K changed. The reaction product was analyzed by gas chromatography, and the results were as follows:
Dimethyl malonate was produced at the production rate shown in Table 3.

また反応開始後72時間までのマロン酸ジメチルの総生
成量は396モル/卆−触媒であった。
The total amount of dimethyl malonate produced up to 72 hours after the start of the reaction was 396 mol/liter of catalyst.

第6表 実施例4 RhCj、 @ 3a、o k IrCl4113a、
o K変えて実施例1と同様に行った。
Table 6 Example 4 RhCj, @ 3a, o k IrCl4113a,
o The same procedure as in Example 1 was carried out except that K was changed.

反応生成物をガスクロマトグラフィーで分析した結果、
マ四ン酸ジメチkが第4表の生成速度で生成した。
As a result of analyzing the reaction product by gas chromatography,
Dimethic acid matetra-k was produced at the production rate shown in Table 4.

また反応開始後72時間までのマロン酸ジエチルの総生
成量は158モル/1ip−触媒であった。
Further, the total amount of diethyl malonate produced up to 72 hours after the start of the reaction was 158 mol/1ip-catalyst.

第4表 実施例5 RhCj、 *3a、o 1 # t−球状活性炭10
IIKa着させた後、さらKKXo、651t−吸着さ
せた触媒を内径25鵡、高さ600鋤の耐熱ガラス表反
応管に充填した後、200℃に加熱して一酸化炭素を毎
時013モルの速度で1時間導入した。次に一酸化炭素
、モノクロロ酢酸エチル、及びジエチルエーテルをそれ
ぞれ毎時0.25モル、0.03モル、()、16モル
の速度で175℃に維持された予熱器を通して混合ガス
とし反応管に導入した。反応温度175℃、常圧下に反
応させた。
Table 4 Example 5 RhCj, *3a, o 1 #t-spherical activated carbon 10
After IIKa deposition, KKXo and 651t-adsorbed catalyst was packed into a heat-resistant glass reaction tube with an inner diameter of 25mm and a height of 600mm, and heated to 200°C to release carbon monoxide at a rate of 0.13mol/hour. It was installed for 1 hour. Next, carbon monoxide, ethyl monochloroacetate, and diethyl ether are introduced into the reaction tube as a mixed gas through a preheater maintained at 175°C at a rate of 0.25 mol, 0.03 mol, (), and 16 mol per hour, respectively. did. The reaction was carried out at a reaction temperature of 175° C. and under normal pressure.

反応生成物をガスクロマトグラフィーで分析した結果、
マロン酸ジエチルが第5表の生成速度で生成し、その他
塩化エチルが副生していた。
As a result of analyzing the reaction product by gas chromatography,
Diethyl malonate was produced at the production rate shown in Table 5, and ethyl chloride was also produced as a by-product.

また、反応開始後72時間までのマロン酸ジエチルの総
生成量は439モル/I!P−触媒であった。
Furthermore, the total amount of diethyl malonate produced up to 72 hours after the start of the reaction was 439 mol/I! It was a P-catalyst.

第5表 実施例6〜15 実施例に準じて、モノクロロ酢酸エステル、溶媒、触媒
及び添加物を変えて実施した結果會第6表に示す。
Table 5 Examples 6 to 15 Table 6 shows the results of experiments carried out in accordance with Examples 6 to 15 using different monochloroacetic esters, solvents, catalysts, and additives.

なお、マロン酸ジエチルの総生成量は反応開始後72時
間までの累計生成量を示す。
Note that the total production amount of diethyl malonate indicates the cumulative production amount up to 72 hours after the start of the reaction.

比較例1 実施例1の方法においてKxt−添加しない場合の試験
を行ったところ、反る開始後72時間までのマロン酸ジ
メチルの線生成量は216モル/に?−触[であった。
Comparative Example 1 When a test was conducted using the method of Example 1 without adding Kxt, the amount of dimethyl malonate line produced up to 72 hours after the start of warping was 216 mol/? -It was a touch.

比較例2 実施例4の方法においてに工t−a加しない場合の試験
を行なったところ、反応開始後72時間までのフロン酸
ジメチルの線生成量は79モル/1ip−触媒であった
Comparative Example 2 When a test was conducted using the method of Example 4 without adding t-a, the linear production amount of dimethyl fluoroate up to 72 hours after the start of the reaction was 79 mol/ip-catalyst.

比較例6 実施例5の方法においてに工if添加しない場合の試験
を行なったところ、反応開始後72時間までのマロン酸
ジメチルの線生成量は230モル/IIF−触媒であっ
た。
Comparative Example 6 When a test was conducted using the method of Example 5 without addition of IIF, the linear production amount of dimethyl malonate up to 72 hours after the start of the reaction was 230 mol/IIF-catalyst.

(発明の効果) 本発明によれば、気相反応で塩基性化合物を必要としな
いために、原料の混合が容易で且つ生成物の取得が容易
てあり、また、触媒効率が高(、簡単な操作で容易にマ
ロン酸ジエステルt−製造することができる。
(Effects of the Invention) According to the present invention, since a basic compound is not required in the gas phase reaction, it is easy to mix the raw materials and obtain the product, and the catalytic efficiency is high ( Malonic acid diester t-can be easily produced by simple operations.

Claims (1)

【特許請求の範囲】[Claims] ロジウム化合物またはイリジウム化合物の存在下、エス
テル類、エーテル類またはアセタール類を存在させまた
はさせずして、ハロゲン化酢酸エステルと一酸化炭素を
反応させるにあたり、沃素化合物の共存下、気相接触反
応させることを特徴とするマロン酸ジエステルの製法。
When reacting halogenated acetate and carbon monoxide in the presence of a rhodium compound or iridium compound, with or without the presence of esters, ethers, or acetals, a gas phase catalytic reaction is carried out in the presence of an iodine compound. A method for producing malonic acid diester characterized by the following.
JP60173291A 1985-08-08 1985-08-08 Production of malonic acid diester Granted JPS6236343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60173291A JPS6236343A (en) 1985-08-08 1985-08-08 Production of malonic acid diester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60173291A JPS6236343A (en) 1985-08-08 1985-08-08 Production of malonic acid diester

Publications (2)

Publication Number Publication Date
JPS6236343A true JPS6236343A (en) 1987-02-17
JPH0149343B2 JPH0149343B2 (en) 1989-10-24

Family

ID=15957720

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60173291A Granted JPS6236343A (en) 1985-08-08 1985-08-08 Production of malonic acid diester

Country Status (1)

Country Link
JP (1) JPS6236343A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819208A (en) * 1986-05-06 1989-04-04 Mitsubishi Denki Kabushiki Kaisha Biodirectional elastic store circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4819208A (en) * 1986-05-06 1989-04-04 Mitsubishi Denki Kabushiki Kaisha Biodirectional elastic store circuit

Also Published As

Publication number Publication date
JPH0149343B2 (en) 1989-10-24

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