JPS5772934A - Preparation of cyclopenetenone derviative - Google Patents

Preparation of cyclopenetenone derviative

Info

Publication number
JPS5772934A
JPS5772934A JP14853080A JP14853080A JPS5772934A JP S5772934 A JPS5772934 A JP S5772934A JP 14853080 A JP14853080 A JP 14853080A JP 14853080 A JP14853080 A JP 14853080A JP S5772934 A JPS5772934 A JP S5772934A
Authority
JP
Japan
Prior art keywords
formula
alkenyl
alkyl
give
hydroxyl group
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
JP14853080A
Other languages
Japanese (ja)
Other versions
JPS6254411B2 (en
Inventor
Masayoshi Minamii
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP14853080A priority Critical patent/JPS5772934A/en
Priority to HU111681A priority patent/HU188043B/en
Priority to DK190981A priority patent/DK151796C/en
Priority to DE8181103288T priority patent/DE3161108D1/en
Priority to EP19810103288 priority patent/EP0039089B1/en
Priority to CH380581A priority patent/CH647747A5/en
Priority to DE19813123177 priority patent/DE3123177A1/en
Priority to FR8111542A priority patent/FR2488885A1/en
Publication of JPS5772934A publication Critical patent/JPS5772934A/en
Publication of JPS6254411B2 publication Critical patent/JPS6254411B2/ja
Granted legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To obtain the titled compound useful as high-quality perfume, a jasmone component of natural perfume, inexpensively, industrially practically in high yield, by removing reductively a hydroxyl group of a specific hydroxycyclopentenone derivative.
CONSTITUTION: A furancarbinol shown by the formulaI(R1 is H, alkyl, or alkenyl; R2 is alkyl, alkenyl, alkynyl, aryl, aralkyl, thienyl, cycloalkyl; with the proviso that the case where R1 is CH3 and R2 is n-pentyl is omitted) is rearrnged a in the presence or absence of catalyst at 20W160°C in a solvent consisting of water as a main solvent, being adjusted to a pH of 3W7 by adding a buffer solution for pH adjustment, e.g, potassium hydrogenphosphate and phosphoric acid, etc., to give a hydroxypentenone derivative shown by the formula II. This compound shown by the formula II is reductively reacted with a metal and an acid, e.g., zinc powder and glacial acetic acid, etc. at 20W160°C by reduction method, so that the hydroxyl group of the compound is removed, to give the desired compound shown by the formula III.
COPYRIGHT: (C)1982,JPO&Japio
JP14853080A 1980-04-30 1980-10-22 Preparation of cyclopenetenone derviative Granted JPS5772934A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP14853080A JPS5772934A (en) 1980-10-22 1980-10-22 Preparation of cyclopenetenone derviative
HU111681A HU188043B (en) 1980-04-30 1981-04-29 Process for producing cyclopentenolene derivatives
DK190981A DK151796C (en) 1980-04-30 1981-04-29 PROCEDURE FOR THE PREPARATION OF CYCLOPENTENOLONS
DE8181103288T DE3161108D1 (en) 1980-04-30 1981-04-30 Process for preparing cyclopentenolones
EP19810103288 EP0039089B1 (en) 1980-04-30 1981-04-30 Process for preparing cyclopentenolones
CH380581A CH647747A5 (en) 1980-08-19 1981-06-10 METHOD FOR PRODUCING CYCLOPENTENONES.
DE19813123177 DE3123177A1 (en) 1980-08-19 1981-06-11 Process for the preparation of cyclopentenones
FR8111542A FR2488885A1 (en) 1980-08-19 1981-06-11 PROCESS FOR PREPARING CYCLOPENTENONE DERIVATIVES BY TRANSPOSITION OF A FURANECARBINOL

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14853080A JPS5772934A (en) 1980-10-22 1980-10-22 Preparation of cyclopenetenone derviative

Publications (2)

Publication Number Publication Date
JPS5772934A true JPS5772934A (en) 1982-05-07
JPS6254411B2 JPS6254411B2 (en) 1987-11-14

Family

ID=15454839

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14853080A Granted JPS5772934A (en) 1980-04-30 1980-10-22 Preparation of cyclopenetenone derviative

Country Status (1)

Country Link
JP (1) JPS5772934A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008005967A (en) * 2006-06-28 2008-01-17 Univ Nihon toothbrush
JP2008544785A (en) * 2005-07-01 2008-12-11 グラクソスミスクライン・コンシューマー・ヘルスケア・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コムパニー・コマンディットゲゼルシャフト toothbrush

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008544785A (en) * 2005-07-01 2008-12-11 グラクソスミスクライン・コンシューマー・ヘルスケア・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コムパニー・コマンディットゲゼルシャフト toothbrush
JP2008005967A (en) * 2006-06-28 2008-01-17 Univ Nihon toothbrush

Also Published As

Publication number Publication date
JPS6254411B2 (en) 1987-11-14

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