BE511103A - - Google Patents
Info
- Publication number
- BE511103A BE511103A BE511103DA BE511103A BE 511103 A BE511103 A BE 511103A BE 511103D A BE511103D A BE 511103DA BE 511103 A BE511103 A BE 511103A
- Authority
- BE
- Belgium
- Prior art keywords
- bromine
- dioxane
- solution
- hydroaromatic
- aryl
- Prior art date
Links
- 125000003118 aryl group Chemical group 0.000 claims description 4
- 125000000547 substituted alkyl group Chemical group 0.000 claims description 4
- 125000003710 aryl alkyl group Chemical group 0.000 claims description 3
- 150000001728 carbonyl compounds Chemical class 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- RPLSBADGISFNSI-UHFFFAOYSA-N 2,2-dimethyl-1,3-dioxane Chemical compound CC1(C)OCCCO1 RPLSBADGISFNSI-UHFFFAOYSA-N 0.000 claims 1
- 241001331845 Equus asinus x caballus Species 0.000 claims 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 10
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 9
- 239000000243 solution Substances 0.000 description 9
- HUMNYLRZRPPJDN-UHFFFAOYSA-N benzaldehyde Chemical compound O=CC1=CC=CC=C1 HUMNYLRZRPPJDN-UHFFFAOYSA-N 0.000 description 6
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 4
- 229910052794 bromium Inorganic materials 0.000 description 4
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical class [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 4
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- QNGNSVIICDLXHT-UHFFFAOYSA-N para-ethylbenzaldehyde Natural products CCC1=CC=C(C=O)C=C1 QNGNSVIICDLXHT-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 2
- OOCCDEMITAIZTP-UHFFFAOYSA-N allylic benzylic alcohol Natural products OCC=CC1=CC=CC=C1 OOCCDEMITAIZTP-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- -1 heterocyclic radical Chemical class 0.000 description 2
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- OOCCDEMITAIZTP-QPJJXVBHSA-N (E)-cinnamyl alcohol Chemical compound OC\C=C\C1=CC=CC=C1 OOCCDEMITAIZTP-QPJJXVBHSA-N 0.000 description 1
- VDFVNEFVBPFDSB-UHFFFAOYSA-N 1,3-dioxane Chemical group C1COCOC1 VDFVNEFVBPFDSB-UHFFFAOYSA-N 0.000 description 1
- 150000000093 1,3-dioxanes Chemical class 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000007832 Na2SO4 Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 150000002012 dioxanes Chemical class 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000026030 halogenation Effects 0.000 description 1
- 238000005658 halogenation reaction Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 239000006188 syrup Substances 0.000 description 1
- 235000020357 syrup Nutrition 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D319/00—Heterocyclic compounds containing six-membered rings having two oxygen atoms as the only ring hetero atoms
- C07D319/04—1,3-Dioxanes; Hydrogenated 1,3-dioxanes
- C07D319/06—1,3-Dioxanes; Hydrogenated 1,3-dioxanes not condensed with other rings
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
<Desc/Clms Page number 1>
PROCEDE DE FABRICATION DE 1,3 - DIOXANES MONOHALOGENEES.
Les 1,3-dioxanes halogénées en position 5 de la formule générale
EMI1.1
dans laquelle R1 désigne un radical éventuellement substitue alcoyle, aryle, aralcoyle, hydroaromatique ou hétérocyclique, et R2, R3 et R4 de l'hydrogène ou le cas échéant des radicaux substitués alcoyle, aryle, aralcoyle hydroaro- matiques ou hétérocycliques pouvant être identiques ou différnts, ne sont pas connues jusqu'à présent. A cause de leur capacité de réaction multiple, elles ont une importance technique considérable en tant que produits in- termédiaires, spécialement pour la fabrication de produits pharmaceutiques.
Une halogénation en anneau directe de 1,3-dioxanes est, comme on le sait, impossible (comparer par exemple Soc. 101 II, 1803/1912). On a cependant constaté que l'on peut préparer les produits de la réaction avec de très bons rendements, en condensant des hydrines d'halogène de la formule
R1-CH(OH)-CH (Hal)-CH (OH)-Rz
<Desc/Clms Page number 2>
avec des composés carbonyles R3-CO-R4, tels que par exemple le formaldéhyde, l'acétone,le benzaldéhyde ou également du cyclohexanone (donc des composés carbonyles, dans lesquels R3 et R4 forment un anneau commun) suivant des mé- thodes connues en soi.
EXEMPLES. -
EMI2.1
1) Une solution de 23,1 gr de l=phényl-2-brome -propandiol-(1,3) obtenue par traitement d'alcool cinnamique par la quantité équimoléculaire de solution de brome dans 230 cm3 d'acétone sec est agitée pendant trois jours avec 225 gr de sulfate de cuivre déshydraté. On sépare le sulfate de cuivre par filtration et on évapore l'acétone en excès. On obtient une hui- le épaisse jaunâtre, qui devient cristalline lorsqu'on la décante avec du glycol. Les cristaux sont extraits par aspiration et lavés au glycol. La 2,2-diméthyl-6-brome-6-phényl-l,3-dioxane cristallisée à partir de ligroine fond à 55-56 .
EMI2.2
C12H1502Br théorique C 53,14 (52,85) H 5,53 (5,42) 'Br 29., 52 (28,77) trouvé C 52,61 (52,85) H 5,41 (5,42) Br 28,99 (28,77)
2) Une solution de 15 gr de 1-phényl-2-brome-propandiol-(1,3) dans 40 gr de benzaldéhyde, à laquelle on a ajouté 15 gr de sulfate de cui- vre déshydrate et des traces d'acide chlorhydrique sec, est agitée pendant deux jours à 0 dans le vide. La solution dont le sulfate de cuivre a été éliminé est comprimée sous vide pour éliminer le benzaldéhyde en excès. On obtient 22,1 gr d'un produit de réaction huileux, qui après traitement par la ligroine devient cristallin. Les cristaux sont séparés par aspiration.et lavés avec un peu d'éther de pétrole.
Le point de fusion de la 2,6-diphényl- 5-brome-1,3-dioxane ainsi préparée est de 86-87 .
C16H15O2Br théorique C 60, 19 H 4,71 Br 25,08 15 trouvé C 60,19 (60,01) H 4,95 (4,87) Br 25,30 (25,29)
3) Une solution de 64 gr 1-p-nitrophényl-2-propandiol (1,3) ob- tenue sous forme de sirop jaunâtre par traitement d'une solution aqueuse de dioxane dans de l'alcool p-nitro cinnamique par la quantité équimoléculaire de solution de brome, dans 640 cm3 d'acétone sec, est après addition de 64 gr de sulfate de cuivre déshydraté, agité pendant environ 60 heures à la tem- pérature ambiante. On traite comme indiqué dans l'exemple 1 et onobtient
EMI2.3
le 2,2-diméthyl-5-brome-6-(p-ni tro-phényl)-1,3-dioxane avec un rendement de 55 gr ; de fusion 99 (dans l'éther).
C12H14O4NBr théorique C 45,57 H 4,43 N 4,43 Br 25,31 j.<..L4 trouvé C 45,35 H 4,45 N 4,28 Br 25,15
EMI2.4
4) 46,2 gr de 1-phênyl-2-brome-propandiol (1,3) ont été dissous dans 30 cm3 de dioxane et traités par 50 gr d'une solution de formaldéhyde à 40 % d'eau. En agitant et en refroidissant on fait pénétrer pendant une heure un faible courant de HCl. Pendant ce temps a lieu une séparation hui- leuse. Pour la préparation on agite le produit de la réaction avec de l'éther,. et on lave la solution d'éther dans une solution diluée de bicarbonate et ensuite dans l'eau. Après séchage sur du Na2S04 l'éther est évaporé et le résidu distillé sous vide. On obtient la 5-brome-6-phényl-l,3-dioxane sous forme d'huile ayant la transparence'de l'eau, avec un rendement de 77 % du rendement théorique.
Point de cristallisation 3,5 129 . Un dosage du brome a donné la valeur théorique de 32,9 %.
<Desc / Clms Page number 1>
MANUFACTURING PROCESS OF 1,3 - MONOHALOGENOUS DIOXANES.
The halogenated 1,3-dioxanes in position 5 of the general formula
EMI1.1
in which R1 denotes an optionally substituted alkyl, aryl, aralkyl, hydroaromatic or heterocyclic radical, and R2, R3 and R4 hydrogen or, where appropriate, substituted alkyl, aryl, aralkyl hydroaromatic or heterocyclic radicals which may be identical or different , are not known until now. Because of their multiple reactivity, they have considerable technical importance as intermediates, especially for the manufacture of pharmaceuticals.
A direct ring halogenation of 1,3-dioxanes is, as is known, impossible (compare for example Soc. 101 II, 1803/1912). However, it has been found that the reaction products can be prepared in very good yields by condensing halogen hydrines of the formula
R1-CH (OH) -CH (Hal) -CH (OH) -Rz
<Desc / Clms Page number 2>
with carbonyl compounds R3-CO-R4, such as, for example, formaldehyde, acetone, benzaldehyde or also cyclohexanone (therefore carbonyl compounds, in which R3 and R4 form a common ring) according to methods known in self.
EXAMPLES. -
EMI2.1
1) A solution of 23.1 g of l = phenyl-2-bromine -propandiol- (1,3) obtained by treatment of cinnamic alcohol with the equimolecular amount of bromine solution in 230 cm3 of dry acetone is stirred for three days with 225 gr of dehydrated copper sulphate. The copper sulfate is filtered off and the excess acetone is evaporated off. A thick yellowish oil is obtained, which becomes crystalline when decanted with glycol. The crystals are extracted by suction and washed with glycol. 2,2-Dimethyl-6-bromine-6-phenyl-1,3-dioxane crystallized from ligroin melts at 55-56.
EMI2.2
Theoretical C12H1502Br C 53.14 (52.85) H 5.53 (5.42) 'Br 29., 52 (28.77) found C 52.61 (52.85) H 5.41 (5.42) Br 28.99 (28.77)
2) A solution of 15 g of 1-phenyl-2-bromine-propandiol- (1,3) in 40 g of benzaldehyde, to which 15 g of dehydrated sulphate of copper and traces of hydrochloric acid have been added. dry, is stirred for two days at 0 in vacuum. The solution from which the copper sulphate has been removed is compressed under vacuum to remove excess benzaldehyde. 22.1 g of an oily reaction product are obtained, which after treatment with ligroin becomes crystalline. The crystals are separated by suction and washed with a little petroleum ether.
The melting point of the 2,6-diphenyl-5-bromine-1,3-dioxane thus prepared is 86-87.
Theoretical C16H15O2Br C 60.19 H 4.71 Br 25.08 15 found C 60.19 (60.01) H 4.95 (4.87) Br 25.30 (25.29)
3) A solution of 64 gr 1-p-nitrophenyl-2-propandiol (1,3) obtained in the form of a yellowish syrup by treating an aqueous solution of dioxane in p-nitro cinnamic alcohol by the amount equimolecular bromine solution in 640 cm3 of dry acetone is after addition of 64 g of dehydrated copper sulphate, stirred for about 60 hours at room temperature. We treat as indicated in Example 1 and we obtain
EMI2.3
2,2-dimethyl-5-bromine-6- (p-ni tro-phenyl) -1,3-dioxane with a yield of 55 g; fusion 99 (in ether).
Theoretical C12H14O4NBr C 45.57 H 4.43 N 4.43 Br 25.31 j. <.. L4 found C 45.35 H 4.45 N 4.28 Br 25.15
EMI2.4
4) 46.2 g of 1-phenyl-2-bromine-propandiol (1,3) were dissolved in 30 cm3 of dioxane and treated with 50 g of a 40% water solution of formaldehyde. With stirring and cooling, a weak stream of HCl is introduced for one hour. During this time an oily separation takes place. For the preparation, the reaction product is stirred with ether. and washing the ether solution in dilute bicarbonate solution and then in water. After drying over Na2SO4 the ether is evaporated off and the residue distilled off in vacuo. 5-Bromine-6-phenyl-1,3-dioxane is obtained in the form of an oil having the transparency of water, with a yield of 77% of the theoretical yield.
Crystallization point 3.5 129. An assay of bromine gave the theoretical value of 32.9%.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE511103A true BE511103A (en) |
Family
ID=149985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE511103D BE511103A (en) |
Country Status (1)
| Country | Link |
|---|---|
| BE (1) | BE511103A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2816898A (en) * | 1954-09-30 | 1957-12-17 | Union Carbide Corp | Aryl halogen substituted dioxanes and dioxins and processes |
-
0
- BE BE511103D patent/BE511103A/fr unknown
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2816898A (en) * | 1954-09-30 | 1957-12-17 | Union Carbide Corp | Aryl halogen substituted dioxanes and dioxins and processes |
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