The efficient isomerisation of a range of γ‐azido substituted vinyl sulfones is reported. The corresponding vinyl azides are typically obtained with high levels of Z‐stereochemistry. An exception is when R is an α‐methyl substituent is present when the E‐vinyl azide was preferred.
A regio‐ and stereoselective synthesis of sulfones and thioethers by means of CuI‐catalyzedaerobicoxidativeNS bond cleavage of sulfonyl hydrazides, followed by cross‐coupling reactions with alkenes and aromatic compounds to form the CS bond, is described herein. N2 and H2O are the byproducts of this transformation, thus offering an environmentally benign process with a wide range of potential
Highly diastereoselective allylation reactions of dilithiated 4-(phenylsulfonyl)-cyclopent-2-enol
作者:Donald Craig、Pengfei Lu、Andrew J.P. White
DOI:10.1016/j.tetlet.2009.10.074
日期:2010.1
A two-stepsynthesis of 4-(phenylsulfonyl)cyclopent-2-enol using epoxide ring-opening and ring-closing alkene metathesis is described. Treatment of the dianion of 4-(phenylsulfonyl)cyclopent-2-enol with allylic bromides gave the corresponding alkylated products with excellent to complete diastereoselectivity.
Palladium-catalyzed allylation of sulfonyl hydrazides with alkynes to synthesize allylic arylsulfones
作者:Chuan-Jun Lu、Hong Chen、Dong-Kai Chen、Hong Wang、Zhen-Ping Yang、Jianrong Gao、Hongwei Jin
DOI:10.1039/c6ob01929c
日期:——
A novel method for the construction of allyl sulfone derivatives was developed by palladium catalyzed allylation of sulfony hydrazides with alkynes.
通过钯催化磺酰肼与炔烃的烯丙基化反应,开发出了一种构建烯丙基砜衍生物的新方法。
A Convenient Synthesis of Sulfones Using Zinc Mediated Coupling Reaction of Sulfonyl Chlorides with Alkyl Halides in Aqueous Media
作者:Xinghua Sun、Lei Wang、Yongmin Zhang
DOI:10.1080/00397919808007009
日期:1998.5
Abstract An efficient procedure for the preparation of sulfones has been developed through a simple reaction of aromatic sulfonyl chlorides with suitable alkyl halides mediated by commercial zinc powder in aqueous media at 0 °C ∼ room temperature.
摘要 通过在水性介质中,在 0 °C ~ 室温下,在商业锌粉的介导下,芳族磺酰氯与合适的卤代烷进行简单反应,开发了一种有效的制备砜的方法。