Journal
TETRAHEDRON
Volume 62, Issue 41, Pages 9688-9693Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2006.07.086
Keywords
thiazolines; chloralamides; reduction; thionation; electrosynthesis
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The first synthesis of the title compounds has been achieved starting from chloralamides by a route involving chemical and electrochemical steps. N-(1-Alkoxy-2,2,2-trichloroethyl)benzamides were efficiently prepared from chloralbenzamides and were electrochemically converted into N-(1-alkoxy-2,2-dichloroethyl)benzamides in high yields by cathodic reduction in a protic medium. Thionation of these compounds with Lawesson's reagent followed by basic treatment gave novel (E)-4-alkoxy-2-aryl-5-chloro-2-thiazolines in fair to quantitative yields. (c) 2006 Elsevier Ltd. All rights reserved.
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