Synthesis and reactivity of α-sulfenyl-β-chloroenones, including oxidation and Stille cross-coupling to form chalcone derivatives
作者:Aoife M. Kearney、Linda Murphy、Chloe C. Murphy、Kevin S. Eccles、Simon E. Lawrence、Stuart G. Collins、Anita R. Maguire
DOI:10.1016/j.tet.2021.132091
日期:2021.5
The synthesis of a range of novel α-sulfenyl-β-chloroenones from the corresponding α-sulfenylketones, via a NCS mediated chlorination cascade, is described. The scope of the reaction has been investigated and compounds bearing alkyl- and arylthio substituents have been synthesised. In most instances, the Z α-sulfenyl-β-chloroenones were formed as the major products, while variation of the substituent
Tandem Pd/Au-Catalyzed Route to α-Sulfenylated Carbonyl Compounds from Terminal Propargylic Alcohols and Thiols
作者:Srijit Biswas、Rahul A. Watile、Joseph S. M. Samec
DOI:10.1002/chem.201304111
日期:2014.2.17
highly atom‐economical tandem Pd/Au‐catalyzed route to α‐sulfenylated carbonylcompounds from terminal propargylic alcohols and thiols has been developed. This one‐step procedure has a wide substrate scope with respect to substituents at the α‐position of the alcohol. Both aromatic and aliphatic thiols generated the α‐sulfenylated carbonyl products in good to excellent yields. A mechanism is proposed in
[EN] PREPARATION OF [ALPHA]-SULFENYLATED CARBONYL COMPOUNDS FROM PROPARGYLIC ALCOHOLS IN ONE STEP<br/>[FR] PRÉPARATION DE COMPOSÉS [ALPHA]-SULFÉNYLÉS CARBONYLE À PARTIR D'ALCOOLS PROPARGYLIQUES EN UNE SEULE ÉTAPE
申请人:KAT2BIZ AB
公开号:WO2013112104A1
公开(公告)日:2013-08-01
The present relates to a method and a kit to produce an optically pure α-sulfenylated carbonyl compound comprising a primary or a secondary propargylic alcohol and an aryl thiol, a transition metal catalyst and a solvent.
A New Method for Stereocontrolled Synthesis of Substituted Tetrahydrothiophenes
作者:Andrés Molina Ponce、Larry E. Overman
DOI:10.1021/ja001975m
日期:2000.9.1
A variety of substituted 3-acyltetrahydrothiophenes can be prepared with high stereoselectivity in 50−70% yield by acid-promoted condensation of mercapto allylic alcohols 1 (X = S) with aldehydes and ketones. The mercapto allylic alcohol must be substituted at the internal alkene carbon and the terminal alkene carbon must be unsubstituted. This newsynthesis of tetrahydrothiophenes will be most useful
PREPARATION OF [ALFA]-SULFENYLATED CARBONYL COMPOUNDS FROM PROPARGYLIC ALCOHOLS IN ONE STEP
申请人:KAT2BIZ AB
公开号:US20150011796A1
公开(公告)日:2015-01-08
The present relates to a method and a kit to produce an optically pure α-sulfenylated carbonyl compound comprising a primary or a secondary propargylic alcohol and an aryl thiol, a transition metal catalyst and a solvent.