22437-44-1Relevant articles and documents
Thio-Michael addition of α,β-unsaturated amides catalyzed by Nmm-based ionic liquids
Liu, Yawei,Lai, Zhenzhen,Yang, Pengkun,Xu, Yuanqing,Zhang, Wenkai,Liu, Baoying,Lu, Minghua,Chang, Haibo,Ding, Tao,Xu, Hao
, p. 43104 - 43113 (2017/09/15)
A simple and practical thio-Michael addition of α,β-unsaturated amides catalyzed by Nmm-based ionic liquids with a 1,2-propanediol group has been developed. All the α,β-unsaturated amides without substituents at the carbon end could smoothly react with su
Chemistry of O-silylated ketene acetals: A mild and convenient synthesis of β-lactam antibiotics
Kita,Shibata,Tamura,Miki
, p. 2225 - 2232 (2007/10/02)
β-Amido sulfoxides (1) reacted with O-silylated ketene acetal (16) in dry acetonitrile in the presence of a catalytic amount of zinc iodide to give the 4-phenylthioazetidin-2-ones (17). Oxidation of 17 with m-chloroperbenzoic acid gave the corresponding s