Highly brominated biphenylenes as precursors for the convenient synthesis of 5,6,8,10-tetrabromobenzocyclooctene-Reference-Cited by-同舟云学术

Highly brominated biphenylenes as precursors for the convenient synthesis of 5,6,8,10-tetrabromobenzocyclooctene

Published:2004-08 Issue:8 Volume:2004 Page:545-549
ISSN:1747-5198
Container-title:Journal of Chemical Research
language:en
Short-container-title:Journal of Chemical Research

Author:

Tutar Ahmet¹,Cakmak Osman¹,Karakas Mehmet¹,Onal Adem¹,Ide Semra¹²

Affiliation:

1. Department of Chemistry, Faculty of Science, Gaziosmanpasa University, 60240 Tokat, Turkey

2. Department of Physics Engineering, Hacettepe University, 06532 Beytepe, Ankara, Turkey

Abstract

An efficient synthesis is described of hexabromides 5 and 6 by photobromination of biphenylene (1). Double dehydrobromination of hexabromides 5 and 6 with t-BuOK affords 5,6,8,10-tetrabromobenzocyclooctene (7) in nearly quantitative yield. The tetrabromide 7 is a valuable precursor for the preparation of functionalised substituted benzocyclooctenes (benzo[8]annulenes).

Publisher

SAGE Publications

Subject

General Chemistry

Link

http://journals.sagepub.com/doi/pdf/10.3184/0308234042564036

Reference34 articles.

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5. Four-membered ring compounds containing bis(methylene)cyclobutene or tetrakis(methylene)cyclobutane moieties. Benzocyclobutadiene, benzodicyclobutadiene, biphenylene, and related compounds

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