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Synthesis of 2,3‐dihydropyrazolo[5,1‐ b ]thiazoles via a tandem condensation sulfur‐extrusion reaction
Author(s) -
Hanefeld Wolfgang,
Schlitzer Martin
Publication year - 1994
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570310675
Subject(s) - chemistry , extrusion , tandem , condensation , sulfur , condensation reaction , organic chemistry , composite material , thermodynamics , physics , materials science , catalysis
2,3‐Dihydropyrazolo[5,1‐ b ]thiazoles 3 are the first representatives of a heterocyclic system, which are conveniently prepared by heating 3‐aminorhodanines 1 with ethyl 2‐bromo‐3,3‐diethoxypropionate ( 2 ), via a tandem condensation‐sulfur extrusion reaction.
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