Synthesis 2019; 51(18): 3451-3461
DOI: 10.1055/s-0039-1690099
paper
© Georg Thieme Verlag Stuttgart · New York

N-Heterocyclic Carbene Catalyzed Stereoselective Synthesis of 2-Nitro-thiogalactosides

Yu-Long Hu ‡
,
Bo-Bo Gou ‡
,
Jiao Wang
,
Ming Zhao
,
Jia-Lin Liu
,
Jie Chen
,
Ling Zhou
We thank the National Natural Science Foundation of China (NSFC-21672170), the Natural Science Foundation of Shaanxi Province (2018JC-020, 2018JM2029), the China Postdoctoral Science Foundation (2018M643705), the Key Science and Technology Innovation Team of Shanxi Province (2017KCT-37), and the ‘Top-rated Discipline’ Construction Scheme of Shaanxi Higher Education for financial support.
Further Information

Publication History

Received: 18 February 2019

Accepted after revision: 21 May 2019

Publication Date:
26 June 2019 (online)


These authors contributed equally to this work.

Abstract

A highly selective NHC-catalyzed Michael addition of alkanethiols or thiophenol to 2-nitro-d-galactal compounds for the synthesis of 2-nitro-thiogalactoside derivatives has been developed for the first time. A wide variety of 1,2-cis-2-nitro-thiogalactosides can be prepared in good to excellent yields and high to excellent α-selectivities.

Supporting Information