English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

A mild oxidation of 1,2,3,5,6,11b-hexahydroimidazo[1,2-d][1,4]benzoxazepines using KMnO4 in DMF at room temperature produces a mixture of unsaturated and partially unsaturated [1,4]benzoxazepines in very good yields. Condensation of 2-(2-bromoethoxy)benzaldehydes with either o-phenylenediamine or ethylenediamine in the presence of oxidative reagents such as sodium metabisulfite in acetonitrile at reflux temperature produces a series of [1,4]benzoxazepines, in a simple way and in good yields. Structures of all the synthesized compounds were established in detail via NMR, HRMS spectra and single-crystal X-ray diffraction analyses.

A new and efficient synthesis of unsaturated benzoxazepines using sodium metabisulfite and potassium permanganate as oxidative reagents