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Synthesis 2007(24): 3891-3895
DOI: 10.1055/s-2007-990869
DOI: 10.1055/s-2007-990869
PAPER
© Georg Thieme Verlag Stuttgart · New York
Chlorotrimethylsilane-Mediated Friedländer Synthesis of 2-(α-Chloroalkyl)quinoline Derivatives
Further Information
Received
14 August 2007
Publication Date:
31 October 2007 (online)
Publication History
Publication Date:
31 October 2007 (online)
Abstract
Condensation of 2-aminoacetophenone and 2-aminobenzophenone with ethyl 4-chloro-3-oxobutanoate in the presence of excess chlorotrimethylsilane was shown to give ethyl 2-chloromethyl-3-quinoline carboxylates in high yields. A similar reaction with 1,3-dichloroacetone and 2-chlorocyclohexanone led to the 3-chloro-2-(chloromethyl)quinolines and 4-chloro-1,2,3,4-tetrahydroacridines, respectively.
Key words
condensation - heterocycles - nitriles - quinolines - ring closure
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