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Notizen/Notes Formation of Trisubstituted 1,2,4‐Triazoles in the Cyclodehydration of 2‐Hydrazinothiazoles: Competition of Two Reaction Routes
Author(s) -
Veverka Miroslav,
Svêtlík Jan
Publication year - 1989
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.198919890114
Subject(s) - chemistry , intramolecular force , yield (engineering) , competition (biology) , combinatorial chemistry , medicinal chemistry , organic chemistry , stereochemistry , thermodynamics , ecology , biology , physics
The intramolecular cyclodehydration of ethyl (2‐hydrazinothiazol‐4‐yl)acetates 1a – f has been re‐examined. The reactions yield the desired thiazolo[2,3‐ c ]‐ s ‐triazoles 2a – f together with the unexpected trisubstituted 1,2,4‐triazoles 3a – f .