METHOD FOR PREPARING CHIRAL NITRO DERIVATIVES USING ORGANIC CHIRAL CATALYST COMPOUNDS AND ECO-FRIENDLY SOLVENTS
申请人:KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
公开号:US20240076263A1
公开(公告)日:2024-03-07
Provided are a method for preparing chiral nitro derivatives using organic chiral catalyst compounds and water as an eco-friendly solvent, and the like. The catalyst is an organic catalyst based on (R,R)-1,2-diphenylethylenediamine (DPEN), and can prepare nitro derivatives having enantioselectivity and diastereoselectivity in excellent yield through a hydrophobic hydration effect. In particular, the preparation method of the present disclosure can stabilize a transition state through an interfacial reaction between the catalyst and water. In addition, indole derivatives can be synthesized using the chiral nitro derivatives prepared according to the present disclosure to be usefully used for the prevention or treatment of brain-nervous system diseases including depression and muscular diseases including cachexia.
Stereoselective Synthesis of 3-Aryloctahydroindoles and Application in a Formal Synthesis of (−)-Pancracine
作者:Sunil V. Pansare、Rajinikanth Lingampally、Raie Lene Kirby
DOI:10.1021/ol902761a
日期:2010.2.5
A stereoselective synthesis of 3-aryloctahydroindoles from enantiomerically enriched γ-nitroketones has been developed. Reduction of imines derived form the nitroketones provides the trans-fused octhaydroindole motif selectively. The cis-octahydroindole skeleton is accessible by an invertive cyclization strategy involving a diastereomerically pure nitromesylate intermediate. This approach was employed