Alkene Difunctionalization Triggered by a Stabilized Allenyl Radical: Concomitant Installation of Two Unsaturated C−C Bonds
作者:Yunlong Wei、Hong Zhang、Xinxin Wu、Chen Zhu
DOI:10.1002/anie.202106145
日期:2021.9.6
Radical-mediated difunctionalization of alkenes provides a promising approach to introduce one alkenyl or alkynyl group to target compounds. However, simultaneous installation of two unsaturated C−C bonds via alkene difunctionalization remains elusive, attributable to the high instability and transient lifetimes of alkenyl and alkynyl radicals. Herein, we report the photocatalytic 1,2-alkynylalkenylation and
Convenient Access to Conformationally Rigid Sultams
作者:Dmitry Dibchak、Valeriya Shcherbacova、Aleksandr V. Denisenko、Pavel K. Mykhailiuk
DOI:10.1021/acs.orglett.9b03080
日期:2019.11.15
Synthesis of the previously unknown conformationally rigid sultams fused with the cyclobutane ring was developed. The key transformation was an intramolecular photochemical cyclization of linear sulfonamides. Crystallographic analysis showed that the obtained structures populated the uncharted region in the chemical space.
Palladium-Catalyzed Asymmetric 1,4-Addition of Diarylphosphines to α,β-Unsaturated Sulfonamides
作者:Fanhua Xiao、Wei-Liang Duan、Guo-Fa Dai、Yu-Chuan Song
DOI:10.1055/s-0036-1591593
日期:2018.9
Abstract A pincer palladium-catalyzedasymmetric 1,4-addition of diarylphosphines to α,β-unsaturated sulfonamides was realized for the synthesis of chiral sulfonamide phosphines with up to 98% ee under mild conditions. A pincer palladium-catalyzedasymmetric 1,4-addition of diarylphosphines to α,β-unsaturated sulfonamides was realized for the synthesis of chiral sulfonamide phosphines with up to 98%
SUBSTITUTED BENZOYLGUANIDINES, METHOD FOR PRODUCTION AND USE THEREOF AS MEDICAMENT OR DIAGNOSTIC AND MEDICAMENT COMPRISING THE SAME
申请人:Kleemann Heinz-Werner
公开号:US20070270414A1
公开(公告)日:2007-11-22
The present invention relates to substituted benzoylguanidines of the formula I:
in which R1 to R8 and X and Y are as described in the specification, and their pharmaceutically acceptable salts are substituted acylguanidines as inhibitors of the cellular sodium-proton antiporter (Na
+
/H
+
exchanger, NHE).
Substituted benzoylguanidines, method for production and use thereof as medicament or diagnostic and medicament comprising the same
申请人:sanofi-aventis Deutschland GmbH
公开号:US07772262B2
公开(公告)日:2010-08-10
The present invention relates to substituted benzoylguanidines of the formula I:
in which R1 to R8 and X and Y are as described in the specification, and their pharmaceutically acceptable salts are substituted acylguanidines as inhibitors of the cellular sodium-proton antiporter (Na+/H+ exchanger, NHE).