Absolute asymmetry-inducing chemical reaction in physical optical active medium
专利汇可以提供Absolute asymmetry-inducing chemical reaction in physical optical active medium专利检索，专利查询，专利分析的服务。并且PURPOSE: To prepare an optically active substance from a not asymmetrical precursor, in high efficiency, in a physically optical active photo-electromagnetic field or in a DC-electromagneic field, by properly combining the direction of the light or electric current and the direction of the electromagnetic field.
CONSTITUTION: A compound of e.g. formulaI(e.g. benzaldehyde) is made to react with a compound of e,g. formula II to obtain a compound of e.g. formula III, which is reactd with KCN to obtain a compound of e.g. formula IV (e.g. mandelonitrile) in one step. The compound of formula IV is L-isomer or D-isomer according to the reaction condtiion. The reaction is carried out in a chemically symmetrical medium and in physically optical active photo-electromagnetic field or in a DC-electromagnetic field. The asymmetric synthesms takes place by the proper combination of the direction of the DC-photo-electromagnetic field and the direction of incidence of light to the reaction medium or the direction of the DC-current. An asymmetric synthesis can be carried out even under the conditions giving a racemic mixture by the conventional chemical reactions.
COPYRIGHT: (C)1982,JPO&Japio，下面是Absolute asymmetry-inducing chemical reaction in physical optical active medium专利的具体信息内容。
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