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Synthesis of pyrazolo[3,4‐ b ][1,4]diazepines and pyrazolo[3,4‐ b ]pyrazines
Author(s) -
Colombo Augusto,
Frigola Jordi,
Parés Juan,
Andaluz Blas
Publication year - 1989
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.5570260413
Subject(s) - chemistry , tautomer , stereochemistry , computational chemistry
The synthesis and structure elucidation of new pyrazolo[3,4‐ b ][1,4]diazepines and pyrazolo[3,4‐ b ]pyrazines are reported and the characterisation of isomers and tautomers by proton and carbon‐13 nmr are discussed. In some case only NOE experiments allow us to identify the isomeric structure.