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Alkylation and an unusual reductive ring opening of some thieno[3,4‐ b ][1,5]benzoxazepin‐10‐ones
Author(s) -
Olagbemiro Timothy O.,
Press Jeffery B.
Publication year - 1982
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.5570190649
Subject(s) - chemistry , alkylation , aluminum hydride , tricyclic , ring (chemistry) , lithium (medication) , hydride , reduction (mathematics) , lithium aluminium hydride , medicinal chemistry , stereochemistry , combinatorial chemistry , organic chemistry , ion , catalysis , hydrogen , medicine , geometry , mathematics , endocrinology , methoxide
As part of a program towards the syntheses of novel tricyclic compounds, some derivatives of thieno[3,4‐ b ]‐[1,5]benzoxazepin‐10‐one system 1 were prepared and were subsequently subjected to reduction reactions using lithium aluminum hydride. Although thienobenzoxazines 4 were obtained as the sole product of the reduction in most cases, unusual ring‐opened products, namely 3‐hydroxymethylthiophenes 5 , were also formed during several reductions.