Microwave-assisted domino reactions of propargylamines with isothiocyanates: selective synthesis of 2-aminothiazoles and 2-amino-4-methylenethiazolines
SYNLETT(2016)
摘要
A simple and versatile microwave-assisted protocol for the synthesis of 2-aminothiazoles has been developed. The domino reaction of propargylamines and isothiocyanates in the presence of catalytic PTSA leads to the selective synthesis of 2-aminothiazoles at temperatures above 130 degrees C and in a few minutes. The same reaction carried out at lower temperatures leads to the formation of the tautomeric 2-amino-4-methylenethiazolines.
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关键词
2-aminothiazole,thiazoline,propargylamine,isothiocyanate,microwave chemistry,imidazol-thione
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