highly efficient Pd/Xiang-Phos catalyzedenantioselective carboetherification of alkenyl oximes with either aryl or alkenyl halides, delivering various chiral 3,5-disubstituted and 3,5,5-trisubstituted isoxazolines in good yields with up to 97 % ee. The sterically bulky and electron-rich (S,Rs)-NMe-X2 ligand is responsible for the excellent reactivities and enantioselectivities. The salient features of this
[EN] NOVEL 4,5-DIHYDROISOXAZOLES WITH ESTROGENIC ACTIVITY<br/>[FR] NOUVEAUX 4,5-DIHYDROISOXAZOLES AVEC UNE ACTIVITÉ OETROGÉNIQUE
申请人:PULKKINEN JUHA
公开号:WO2009066009A1
公开(公告)日:2009-05-28
This invention relates to novel 4,5-dihydroisoxazoles of formula (I), to their use as estrogen receptor modulators, and to methods of their preparation.
A One-Pot Approach to Δ<sup>2</sup>-Isoxazolines from Ketones and Arylacetylenes
作者:Elena Yu. Schmidt、Inna V. Tatarinova、Elena V. Ivanova、Nadezhda V. Zorina、Igor’ A. Ushakov、Boris A. Trofimov
DOI:10.1021/ol303132u
日期:2013.1.4
The sequential reaction of ketones with arylacetylenes and hydroxylamine in the presence of KOBut/DMSO followed by the treatment of the reaction mixture with H2O and KOH leads to Delta(2)-isoxazolines in up to 88% yield.
NOVEL 4,5-DIHYDROISOXAZOLES WITH ESTROGENIC ACTIVITY