Switchable Copper-Catalyzed Cascade Synthesis of Thiazolidine-2-thiones and Thiazole-2(3H)-thiones
摘要:
A novel copper-catalyzed cascade synthesis of thiazolidine-2-thiones from N-(2-bromoallyl) amines and carbon disulfide has been developed. The procedure combines carbamodithioic acid formation and copper-catalyzed intramolecular S-vinylation in one sequence. By elevating the temperature, the one-pot reaction efficiently affords thiazole-2(3H)-thiones in moderate to good yields.
A novel synthesis of oxazolidin-2-ones by carbamic acid formation and a subsequent copper-catalyzed intramolecular vinylation from N-(2-bromoallyl)amines and KHCO3 was developed. KHCO3 was used as a C1 source and base in this efficient and convenient cascade process.
Switchable Copper-Catalyzed Cascade Synthesis of Thiazolidine-2-thiones and Thiazole-2(3H)-thiones
作者:Hong-Wei Jin、Jian-Quan Weng、Bin-Jie Yue、Meng Xu、Yu-Kun Yang
DOI:10.1055/s-0034-1380815
日期:——
A novel copper-catalyzed cascade synthesis of thiazolidine-2-thiones from N-(2-bromoallyl) amines and carbon disulfide has been developed. The procedure combines carbamodithioic acid formation and copper-catalyzed intramolecular S-vinylation in one sequence. By elevating the temperature, the one-pot reaction efficiently affords thiazole-2(3H)-thiones in moderate to good yields.
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