A simple one-pot synthesis of [1]benzotelluro[3,2-b][1]-benzotellurophenes and its selenium and sulfur analogues from 2,2′-dibromodiphenylacetylene

✍ Scribed by Haruki Sashida; Syuji Yasuike

• Publisher: Journal of Heterocyclic Chemistry
• Year: 1998
• Tongue: English
• Weight: 157 KB
• Volume: 35
• Category: Article
• ISSN: 0022-152X
• DOI: 10.1002/jhet.5570350337

✦ Synopsis

Abstract

Treatment of 2, 2′‐dibromodiphenylacetylene 7 with tert‐butyllithium followed by tellurium insertion resulted in intramolecular ring closure to afford [1]benzotelluro[3,2‐b][1]benzotellurophene 8a. Similarly, [1]benzoseleno‐[3,2‐b][1]benzoselenophene 8b and [1]benzothieno[3,2‐b][1]benzothiophene 8c were also obtained.