Nucleophilic α-addition to β-nitroacrylates: application to the synthesis of α-thioacrylates
作者:Elzbieta Lewandowska
DOI:10.1016/j.tet.2006.03.015
日期:2006.5
The α-addition of alkyl or aryl thionucleophiles to β-nitro-α,β-unsaturated alkenoates in THF in the presence of TEA or DBU gave access to the α-thio-α,β-unsaturated alkenoates. The reaction occurred via formation of β-nitro-α-thioalkanoates and concomitant elimination of nitrous acid from the α-adducts.
The control of diastereoselectivity in the Michael reaction of ketonic enolates with crotonic acid derivatives
作者:E.J. Corey、Ioannis N. Houpis
DOI:10.1016/s0040-4039(00)60431-8
日期:1993.4
Methodology is described for the selective generation of either anti or syn Michael adducts from various ketone enolates and crotonic ester 18 or amide 15.
Nitroolefins in one-flask, tandem. A+B+C coupling reactions producing heterocycles
作者:Gary H. Posner、R. David Crouch
DOI:10.1016/s0040-4020(01)89064-5
日期:——
Direct Benzothiophene Formation via Oxygen-Triggered Intermolecular Cyclization of Thiophenols and Alkynes Assisted by Manganese/PhCOOH
作者:Kaisheng Liu、Fan Jia、Hui Xi、Yuanming Li、Xiaojian Zheng、Qiaoxia Guo、Baojian Shen、Zhiping Li
DOI:10.1021/ol400719d
日期:2013.4.19
An intermolecular oxidative cyclization between thiophenols and alkynes for benzothiophene formation has been established. A variety of multifunctional benzothiophenes are synthesized. In addition, we demonstrated that the obtained benzothiophenes can be used for further transformation to give diverse benzothiophene derivatives efficiently and selectively.