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A new route to N 2 ‐ and N 3 ‐substituted‐2,3‐diaminopyridines. Synthesis of 1‐ and 3‐alkoxycarbonyl‐ v ‐triazolo[4,5‐ b ]pyridines
Author(s) -
Zecchini Giampiero Pagani,
Torrini Ines,
Paradisi Mario Paglialunga
Publication year - 1985
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.5570220216
Subject(s) - chemistry , group (periodic table) , medicinal chemistry , stereochemistry , organic chemistry
Selective protection of the 3‐amino group of 2,3‐diaminopyridine with benzyl chloroformate allows a new synthesis of 3‐methylamino‐ and 3‐amino‐2‐alkylaminopyridines. The preparation of 1‐ and 3‐alkoxycarbonyl‐ v ‐triazolo[4,5‐ b ]pyridines is also reported.
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