Synthesis and structures of heterasumanenes having different heteroatom functionalities
作者:Masaichi Saito、Tomoharu Tanikawa、Tomoyuki Tajima、Jing Dong Guo、Shigeru Nagase
DOI:10.1016/j.tetlet.2009.11.102
日期:2010.1
After the protection of two alpha-carbons of the dibenzothiophene moiety in triphenylenothiophene 1 by trimethylsilyl groups, the resulting compound 4 reacted with butyllithium followed by dichlorodimethylsilane to afford 10H-silolo[2',3',4',5':4,5]triphenyleno[1,12-bcd]thiophene 8, which reacted with butyllithium followed by dichlorodimethylsilane to afford novel heterasumanene 11. Using dichlorodimethylstannane instead of dichlorodimethylsilane afforded heterasumanene 12, which is the first example of a heterasumanene having three different heteroatom functionalities. (C) 2009 Elsevier Ltd. All rights reserved.