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The synthesis of benzo[b]phenanthro[d]thiophenes and anthra[b]benzo[d]thiophenes

โœ Scribed by Marvin L. Tedjamulia; Yoshinori Tominaga; Raymond N. Castle; Milton L. Lee

Book ID
112127146
Publisher
Journal of Heterocyclic Chemistry
Year
1983
Tongue
English
Weight
499 KB
Volume
20
Category
Article
ISSN
0022-152X

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The reaction of hot thionyl chloride, in the presence of catalytic amounts of pyridine, on 3-phenylpropanoic acids constitutes one of the most direct routes to benso[&]thiophenes.2 It was of particular interest to us to extend this reaction to a variety of propanoic acids because the method showed p