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Base catalyzed reaction of 1,4-dithiane-2,5-diol with α-oxoketene dithioacetals: a new general method for the synthesis of 2-methylthio-3-aroyl/heteroaroyl thiophenes

Authors :
M. P. Sadashiva
K.S. Vinay Kumar
C. S. Pradeepa Kumara
N. Ramesh
G. Byre Gowda
H. Junjappa
Source :
Tetrahedron Letters. 57:4302-4305
Publication Year :
2016
Publisher :
Elsevier BV, 2016.

Abstract

The α-oxoketene dithioacetals and 1,4-dithiane-2,5-diol a dimer of mercapto acetaldehyde, react in the presence of anhydrous potassium carbonate in boiling ethanol to yield the corresponding 2-(methylthio)-3-aroyl/heteroaroyl thiophenes in 55–70% overall yields.

Details

ISSN :
00404039
Volume :
57
Database :
OpenAIRE
Journal :
Tetrahedron Letters
Accession number :
edsair.doi...........c7edfbb82b1dd5ea2f06666d5fa4288f
Full Text :
https://doi.org/10.1016/j.tetlet.2016.08.033