JPS56128729A - Preparation of benzyl-beta-dimethyl ketal - Google Patents
Preparation of benzyl-beta-dimethyl ketalInfo
- Publication number
- JPS56128729A JPS56128729A JP3253380A JP3253380A JPS56128729A JP S56128729 A JPS56128729 A JP S56128729A JP 3253380 A JP3253380 A JP 3253380A JP 3253380 A JP3253380 A JP 3253380A JP S56128729 A JPS56128729 A JP S56128729A
- Authority
- JP
- Japan
- Prior art keywords
- benzyl
- dimethyl ketal
- beta
- preparation
- benzil
- 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.)
- Pending
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To obtain the titled compound useful as a photochemical polymerization sensitizer, in high yield, without environment pollution, by the reaction of methyl orthoformate or orthosilicate, with a benzil, in the presence of an acidic catalyst.
CONSTITUTION: Methyl orthoformate or orthosilicate is reacted with benzil in the presence of an acidic catalyst, e.g., p-toluenesulfonic acid or concentrated sulfuric acid, in an organic solvent, e.g. an alcohol like methanol, etc. while increasing the temperature until reflux, to give a benzyl-β-dimethyl ketal expressed by the formula.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3253380A JPS56128729A (en) | 1980-03-14 | 1980-03-14 | Preparation of benzyl-beta-dimethyl ketal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3253380A JPS56128729A (en) | 1980-03-14 | 1980-03-14 | Preparation of benzyl-beta-dimethyl ketal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56128729A true JPS56128729A (en) | 1981-10-08 |
Family
ID=12361574
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3253380A Pending JPS56128729A (en) | 1980-03-14 | 1980-03-14 | Preparation of benzyl-beta-dimethyl ketal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56128729A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0085031A2 (en) * | 1982-01-22 | 1983-08-03 | FRATELLI LAMBERTI S.p.A. | Method for the preparation of symmetrical monoacetals of aromatic 1,2-diketones starting from the corresponding alphahydroxyketones |
JPS6474034A (en) * | 1987-09-11 | 1989-03-20 | Nippon Denso Co | Voltage regulator for car body charging generator |
EP0362638A2 (en) * | 1988-10-06 | 1990-04-11 | BASF Aktiengesellschaft | Method of preparing symmetrical and unsymmetrical monoacetals of aromatic 1,2-diketones |
US5081307A (en) * | 1989-07-14 | 1992-01-14 | Kawaguchi Chemical Co., Ltd. | Process for preparing 2,2-dimethoxy-2-phenylacetophenone |
-
1980
- 1980-03-14 JP JP3253380A patent/JPS56128729A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0085031A2 (en) * | 1982-01-22 | 1983-08-03 | FRATELLI LAMBERTI S.p.A. | Method for the preparation of symmetrical monoacetals of aromatic 1,2-diketones starting from the corresponding alphahydroxyketones |
JPS6474034A (en) * | 1987-09-11 | 1989-03-20 | Nippon Denso Co | Voltage regulator for car body charging generator |
EP0362638A2 (en) * | 1988-10-06 | 1990-04-11 | BASF Aktiengesellschaft | Method of preparing symmetrical and unsymmetrical monoacetals of aromatic 1,2-diketones |
US5081307A (en) * | 1989-07-14 | 1992-01-14 | Kawaguchi Chemical Co., Ltd. | Process for preparing 2,2-dimethoxy-2-phenylacetophenone |
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