✍ Scribed by Fawi M. Abd El Latif
No coin nor oath required. For personal study only.
An improved and simple method for the preparation of pyrazolo[3,4‐b][1,5]benzoxazepine, ‐benzothiazepine and ‐benzodiazepine derivatives was established by the reaction of 5‐chloro‐1‐phenylpyrazole‐4‐carbaldehydes, ethyl 3‐(5‐chloro‐1,3‐diphenylpyrazol‐4‐yl)‐2‐cyanoacrylate and 1,4‐diacetyl‐3‐methyl‐2‐pyrazolin‐5‐one with o‐aminophenol derivatives and o‐phenylendiamine.
📜 SIMILAR VOLUMES
## Abstract Novel polysubstituted ‐1,5‐benzothiazepine, ‐1,5‐benzoxazepine, and ‐1,5‐benzodiazepine were prepared in good yields by the reaction of hydrazono derivatives with __o__‐thioaminophenol, __o__‐aminophenol and __o__‐phenylenediamine __via__ a one‐pot reaction.
## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract magnified image A series of pyrazolopyrimidine and pyrazoloquinozoline derivatives has been synthesized in one step by multicomponent reactions using, 5‐aminopyrazole, __p‐__substitutedbenzoylacetonitrile/dimedone and triethylorthoesters. pyrazolopyrimidine derivatives were also studie