[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 gold(i)-catalyzed route to α-sulfenylated carbonyl compounds from propargylic alcohols and aryl thiols
作者:Srijit Biswas、Joseph S. M. Samec
DOI:10.1039/c2cc32042h
日期:——
A one-step atom efficient gold(I)-catalyzed route to α-sulfenylated ketones and aldehydes from propargylic alcohols and aryl thiols is described.
一种高效的步骤,借助金(I)催化,可从炔丙基醇和芳基硫醇制备α-亚磺酰基酮和醛的方法被描述。
An aqueous and recyclable copper(i)-catalyzed route to α-sulfenylated carbonyl compounds from propargylic alcohols and aryl thiols
作者:Rahul A. Watile、Srijit Biswas、Joseph S. M. Samec
DOI:10.1039/c3gc41251b
日期:——
A highly efficient one-step copper(I)-catalyzed method for the synthesis of α-sulfenylated carbonyl compounds frompropargylicalcohols and aryl thiols in aqueous media is described. A variety of α-sulfenylated carbonyl compounds can be synthesized in good to excellent yields. The catalyst has been successfully recycled up to 4 times without any loss of activity in an aqueous medium.
Atom-Efficient Gold(I)-Chloride-Catalyzed Synthesis of α-Sulfenylated Carbonyl Compounds from Propargylic Alcohols and Aryl Thiols: Substrate Scope and Experimental and Theoretical Mechanistic Investigation
作者:Srijit Biswas、Christian Dahlstrand、Rahul A. Watile、Marcin Kalek、Fahmi Himo、Joseph S. M. Samec
DOI:10.1002/chem.201302485
日期:2013.12.23
Gold(I)‐chloride‐catalyzed synthesis of α‐sulfenylated carbonyl compounds from propargylic alcohols and aryl thiols showed a wide substrate scope with respect to both propargylic alcohols and aryl thiols. Primary and secondary aromatic propargylic alcohols generated α‐sulfenylated aldehydes and ketones in 60–97 % yield. Secondaryaliphatic propargylic alcohols generated α‐sulfenylated ketones in yields
Reaction of the acetylenic alcohols with arenethiols in the presence of p-toluenesulfonic acid (p-TsOH) gave 3,4-dihydro-2H-1-benzothiopyrans (thiochromans) in good to excellent yields, the reaction of which may involve intermolecular cycloaddition via cationic intermediates.