Central‐to‐Axial Chirality Conversion Approach Designed on Organocatalytic Enantioselective Povarov Cycloadditions: First Access to Configurationally Stable Indole–Quinoline Atropisomers
stereoselective synthesis of enantioenriched axially chiral indole-quinoline systems is presented. The strategy takes advantage of an organocatalytic enantioselective Povarov cycloaddition of 3-alkenylindoles and N-arylimines, followed by an oxidative central-to-axial chirality conversion process, allowing for access to previously unreported axially chiral indole-quinoline biaryls. The methodology
Substituent effects on the stretching vibration of C═N in multi‐substituted benzylideneanilines
作者:Linyan Wang、Chaotun Cao、Chenzhong Cao
DOI:10.1002/poc.3969
日期:2019.9
synthesized, and their infrared absorption spectra were recorded in this paper. On the basis of the stretching vibration frequencies νC═N of C═N bridging bond of 158 samples of substituted XBAYs (including 57 samples of 4,4′‐disubstituted XBAYs from reference and 101 samples of substituted XBAYs synthesized in this paper), an extensional research of substituent effects on the νC═N values from 4,4′‐disubstituted
This invention describes a method of treating inflammation in warm blooded animals by topically administering an effective amount of benzylideneaniline or its derivatives.
这项发明描述了一种通过局部给予苯基亚胺或其衍生物的有效量来治疗温血动物炎症的方法。
Benzylideneaniline derivatives
申请人:William H. Rorer, Inc.
公开号:US04198349A1
公开(公告)日:1980-04-15
This invention describes a method of treating inflammation in warm blooded animals by topically administering an effective amount of benzylideneaniline or its derivatives.
这项发明描述了一种通过局部给予苯基亚胺或其衍生物的有效量来治疗温血动物炎症的方法。
Haloaniline derivatives as plant growth modifiers
申请人:Rohm and Haas Company
公开号:US04119667A1
公开(公告)日:1978-10-10
This disclosure teaches that certain halo aniline derivatives, when applied post-emergence to plants, effect a modification of the growth pattern of said plant.