Synthesis and properties of 1,8-Di(2-thienyl)-, 1,8-bis(5,2′-bithiophene-2-yl)-, 1,8-bis(5,2′:5′,2″-terthiophene-2-yl)-, and 1,8-bis(5,2′:5′,2″:5″,2″′-quaterthiophene-2-yl)naphthalenes and related compounds
作者:Masami Kuroda、Juzo Nakayama、Masamatsu Hoshino、Noboru Furusho、Takashi Kawata、Shigeru Ohba
DOI:10.1016/s0040-4020(01)90226-1
日期:1993.4
1,8-Di(2-thienyl)-, 1,8-bis(5,2′-bithiophene-2-yl)-, 1,8-bis(5,2′:5′,2″-terthiophene-2-yl)-, and 1,8-bis-(5,2′:5′,2″:5″,2″′-quaterthiophene-2-yl)naphthalenes (1a, 1b, 1c and 1d, respectively) were synthesized starting from 1,8-dibromonaphthalene by appliction of NiCl2(dppp)-catalyzed coupling of aryl bromides with thienylmagnesium bromides. For comparison with these compounds, 1-(2-thienyl)-, 1-(5
1,8-二(2-噻吩基)-,1,8-双(5,2'-联噻吩-2-基)-,1,8-双(5,2':5',2''-三噻吩- 2-yl)-和1,8-bis-(5,2':5',2″:5″,2″′-季噻吩-2-基)萘(分别为1a,1b,1c和1d)从1,8-二溴萘开始,通过应用NiCl 2(dppp)催化芳基溴化物与噻吩基溴化镁的偶合反应合成了α-二溴萘。为了与这些化合物比较,1-(2-噻吩基)-,1-(5,2'-联噻吩-2-基)-,1-(5,2':5',2''-三噻吩-2-基)和1-(5,2':5',2'':5'',2'''-四噻吩-2-基)萘(2a–d)也已制备。的检查1 H和13 C NMR和UV /可见光的数据1A-d和图2a-d包括1b的X射线单晶结构数据表明1a-d的两个低聚噻吩单元的平面大约彼此平行,并且与萘环成大角度。根据这些发现,CV氧化电势数据表明,由1a–d形成的自由基阳离子通过两