A simple one-pot synthesis of [1]benzotelluro[3,2-<i>b</i>][1]-benzotellurophenes and its selenium and sulfur analogues from 2,2′-dibromodiphenylacetylene
作者:Haruki Sashida、Syuji Yasuike
DOI:10.1002/jhet.5570350337
日期:1998.5
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.
用叔丁基锂处理2,2'-二溴二苯乙炔7,然后插入碲导致分子内环闭合,得到[1] benzotelluro [3,2- b ] [1] benzotellurophene 8a。同样地,[1] benzoseleno-并[3,2- b ] [1]苯并硒吩8B和[1]苯并噻吩并[3,2- b ] [1]苯并噻吩8C也获得了。