Electrolytic partial fluorination of organic compounds. 4. Regioselective anodic monofluorination of 4-thiazolidinones and its application to the synthesis of monofluoro .beta.-lactams
摘要:
Anodic partial fluorination of sulfur-containing heterocycles has been performed for the first time: 2-aryl-4-thiazolidinones 1 were monofluorinated highly regioselectively. In addition, thermolysis of the sulfones derived from fluorinated 1 provided monofluoro beta-lactams in excellent yields.
Carbodiimide mediated synthesis of 4-thiazolidinones by one-pot three-component condensation
作者:Tumul Srivastava、W Haq、S.B Katti
DOI:10.1016/s0040-4020(02)00866-9
日期:2002.9
In the present study, 4-thiazolidinones have been assembled by DCC mediatedthree-component reaction of amine, aldehyde and mercaptoacetic acid. The final compounds are obtained in quantitative yields within one hour.