Premium
Synthetic approaches to fused heteroaromatic compounds by the condensation reactions of functional pyrroles
Author(s) -
Uchida Takane
Publication year - 1978
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.5570150212
Subject(s) - chemistry , hydrate , hydrazine (antidepressant) , pyridazine , condensation , condensation reaction , organic chemistry , catalysis , physics , chromatography , thermodynamics
Condensation reactions ol the “functionalized” pyrroles which were obtained by one pot synthesis of aziridines and acetylenic dipolarophiles were discussed. On treatments of 3,4‐di‐ and 2,3,4‐tribenzoylpyrroles with hydrazine hydrate and phosphorus pentasulfide, the several pyrrolo‐pyridazine derivatives and fused thiophenes, respectively, were prepared. The structure proofs for the products of the reaction of the 2,3,4‐tribenzoylpyrrole ( 9a ) with hydrazine hydrate were based on the 13 C FT‐nmr spectrum of the corresponding 13 C‐enriched compounds.