Process for preparing acylated esters of hydroxy carboxylates
申请人:THE PROCTER & GAMBLE COMPANY
公开号:EP0002872A1
公开(公告)日:1979-07-11
A process for esterifying and acylating hydroxycarboxylate compounds in an organonitrile reaction medicine comprising the steps of contacting said compounds with an esterification agent-and thereafter acylating by adding an acylating agent to the reaction medium.
Method for racemization of optically active chrysanthemic acid or its derivatives
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0299760A1
公开(公告)日:1989-01-18
Optically active chrysanthemic acid or its derivatives of the formula
(wherein X represents a hydroxyl group, a halogen atom, a C₁₋₂₀ alkoxy group or a 2,2-dimethyl-3-isobutenyl-cyclopropane carboxyl group and * mark shows asymmetric carbon atom) is racemized by allowing it to react with a bromine compound or a SH compound, in the presence of light.
光学活性菊酸或其衍生物,其式为
(其中 X 代表羟基、卤素原子、C₁₋₂₀烷氧基或 2,2-二甲基-3-异丁烯基环丙烷羧基,* 标记表示不对称碳原子)在光照下与溴化合物或 SH 化合物反应,使其发生外消旋化。
Method for racemization of optically active chrysanthemic acid or its ester
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0282221A2
公开(公告)日:1988-09-14
Racemization of an optically active chrysanthemic acid or its ester of the formula:
wherein R represents a hydrogen atom, an alkyl group of 1-20 carbon atoms, a cycloalkyl group of 3-20 carbon atoms or an aralkyl group of 7-20 carbon atoms and * mark indicates asymmetric carbon atom, is effected by contacting the acid or its ester with at least one compound selected from the group consisting of a carboxylic acid bromide, a silicon bromide, an S-bromine compound, and N-bromine compound, a halo-bromine compound and an SH compound in the presence of a peroxide or an azo compound.
式中具有光学活性的菊酸或其酯的外消旋化:
其中 R 代表氢原子、1-20 个碳原子的烷基、3-20 个碳原子的环烷基或 7-20 个碳原子的芳烷基,* 标记表示不对称碳原子,在过氧化物或偶氮化合物存在下,将该酸或其酯与至少一种选自羧酸溴化物、硅溴化物、S-溴化合物、N-溴化合物、卤代溴化合物和 SH 化合物的化合物接触。
Method for racemization of optically active chrysanthemic acid derivatives
申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0289324A1
公开(公告)日:1988-11-02
Racemization of an optically active chrysanthemic acid derivatives of the formula:
wherein X represents a chlorine atom, bromine atom or 2,2-dimethyl-3-isobutenyl-cyclopropane carboxyl group and * mark represents asymmetric carbon atom, is effected by contacting the acid derivatives with at least one compound selected from the group consisting of hydrogen bromide, a carboxylic acid bromide, an N-bromine compound, an S-bromine compound, a halo-bromine compound, a silicon-bromide compound, a phosphorus-bromide compound and an SH compound in the presence of a peroxide or an azo compound.
式中光学活性菊酸衍生物的消旋化:
其中 X 代表氯原子、溴原子或 2,2-二甲基-3-异丁烯基-环丙烷羧基, * 标记代表不对称碳原子,将酸衍生物与至少一种选自由溴化氢、羧酸溴化物、N-溴化合物、S-溴化合物、卤代溴化合物组成的组中的化合物接触、羧酸溴化物、N-溴化合物、S-溴化合物、卤代溴化合物、硅-溴化合物、磷-溴化合物和 SH 化合物组成的组中的至少一种化合物在过氧化物或偶氮化合物存在下进行接触。
Process for preparing substituted imidazoline fabric conditioning compounds
申请人:THE PROCTER & GAMBLE COMPANY
公开号:EP0326222A2
公开(公告)日:1989-08-02
Disclosed is a high yield process for preparing substituted imidazoline fabric conditioning compounds. In this process, a fatty acylating agent, e.g., fatty acid, is reacted with a specific polyamine, and the product of this reaction is reacted with an esterifying agent, both reactions being conducted under specifically-defined conditions. Aqueous dispersions containing these substituted imidazoline compounds possess desirable storage stability, viscosity, and fabric conditioning properties.