Highly Regioselective Monothionation of Squaric and Semisquaric Acid Derivatives
作者:Martin Müller、Matthew J. Heileman、Harold W. Moore、Ernst Schaumann、Gunadi Adiwidjaja
DOI:10.1055/s-1997-1496
日期:1997.1
An efficient synthesis of 4-thioxocyclobut-2-enones by the action of 0.5 molar equivalents of Lawesson’s reagent on the corresponding diones is reported.