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Production of optically active beta-arylthio or alkylthioketone

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专利汇可以提供Production of optically active beta-arylthio or alkylthioketone专利检索,专利查询,专利分析的服务。并且PURPOSE: The Michael addition reaction between a thiol and an unsaturated ketone is conducted in the presence of a specific diaminoalcohol under stirring to produce the titled compound used as a insecticide or fungicide for agricultural products and soil through simple operations in high selectivity.
CONSTITUTION: The Michael addition reaction between an unsaturated ketone of formulaIand a thiol of formula II is carried out in the presence of a catalyst of (2S,4S)-2-(anilinomethyl)-1-ethyl-4-hydroxyproline at -40Wroom temperature, preferably about -5°C in a solvent such as toluene to produce optically active β-arylthio or β-alkylthioketone of formula IV. The compound of formula III as a catalyst is obtained from L-4-hydroxyproline, a naturally occurring aminoacid, without causing racemization.
COPYRIGHT: (C)1982,JPO&Japio,下面是Production of optically active beta-arylthio or alkylthioketone专利的具体信息内容。

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