Gold-Catalyzed Dehydrazinative C(sp)-S Coupling Reactions of Arylsulfonyl Hydrazides with Ethynylbenziodoxolones for Accessing Alkynyl Sulfones
作者:Popat S. Shinde、Nitin T. Patil
DOI:10.1002/ejoc.201700524
日期:2017.6.30
A gold(III)-catalyzed dehydrazinative coupling reaction between TIPS-EBX and arylsulfonylhydrazides has been realized for the synthesis of arylalkynyl sulfones. The scope and versatility of the reaction has been demonstrated by efficient synthesis of 23 derivatives with diverse structural features.
Synthesis of Sulfonated 5-Aminopyrazoles by I<sub>2</sub>
/Benzoyl Peroxide-Mediated Tandem Reaction
作者:Dongping Cheng、Tianpeng Chen、Xiaoliang Xu、Jizhong Yan
DOI:10.1002/adsc.201701201
日期:2018.3.1
The tandem reaction of 3‐morpholinoacrylonitrile with sulfonyl hydrazides mediated by I2/benzoyl peroxide (BPO) is reported, which offers an efficient approach for the synthesis of sulfonated 5‐aminopyrazoles. It can bear a large scope of the substrates, and be used for the synthesis of aromatic, heteroaromatic and aliphatic sulfonated 5‐aminopyrazoles.