METHOD FOR CATALYTIC ASYMMETRIC SYNTHESIS OF OPTICALLY ACTIVE ISOXAZOLINE COMPOUND, AND OPTICALLY ACTIVE ISOXAZOLINE COMPOUND
申请人:NISSAN CHEMICAL INDUSTRIES, LTD.
公开号:US20140350261A1
公开(公告)日:2014-11-27
There is provided a method for catalytic asymmetric synthesis of optically active isoxazoline compound and an optically active isoxazoline compound. A method for catalytic asymmetric synthesis of optically active isoxazoline compound of a formula (6) including reacting an α,β-unsaturated carbonyl compound of a formula (1) and a hydroxylamine in a solvent in the presence of a base by adding a chiral phase transfer catalyst. An optically active isoxazoline compound of a formula (13) that can be synthesized by the method.
[EN] METHOD FOR CATALYTIC ASYMMETRIC SYNTHESIS OF OPTICALLY ACTIVE ISOXAZOLINE COMPOUND, AND OPTICALLY ACTIVE ISOXAZOLINE COMPOUND<br/>[FR] PROCÉDÉ DE SYNTHÈSE ASYMÉTRIQUE CATALYTIQUE DE COMPOSÉ ISOXAZOLINE OPTIQUEMENT ACTIF ET COMPOSÉ ISOXAZOLINE OPTIQUEMENT ACTIF
The synthesis of 10-methyl-9-phosphaanthracene (1b) is described. Its stability is found to be intermediate between that of the unsubstituted parent compound (1a) and of the 10-phenyl derivative (1c). The electronic structure of this new phosphaaromatic system is studied, especially by photoelectron spectroscopy. As inductive and/or conjugative effects of the substituents are shown to be of minor importance