Tetrathio and Tetraseleno[8]circulenes: Synthesis, Structures, and Properties
作者:Xiaodong Xiong、Chun-Lin Deng、Boris F. Minaev、Gleb V. Baryshnikov、Xiao-Shui Peng、Henry N. C. Wong
DOI:10.1002/asia.201403028
日期:2015.4
selenium‐bridged [8]circulenes were prepared from octabromotetraphenylene. Structures of these compounds were unambiguously confirmed by X‐ray crystallographic analyses. Photophysical and electrochemical investigations of these [8]circulenes suggest their potential applications as electronic materials. The antiaromatic nature of tetrathio[8]circulene and tetraselenium[8]circulene was studied by computational
Preparation and Interconversion of Phenylselenenylated and Alkylselenenylated Aromatic Compounds
作者:Lars Engman、Per Eriksson
DOI:10.3987/com-95-7377
日期:——
Phenylselenenyl and alkylselenenyl sulfates were found to efficiently and mildly introduce one or several phenylselenenyl or alkylselenenyl groups into activated aromatic or heteroaromatic compounds. When treated with methylselenenyl sulfate, veratrole and 2,2',3,3'-tetramethoxybiphenyl afforded 2,3,7,8-tetramethoxyselenanthrene and 2,3,7,8-tetramethoxy-dibenzoselenophene, respectively, via oxidative demethylation at selenium/cyclization. Phenyl-selenenylated thiophenes were selectively hydrodeselenenated at the 2- and/or 5-positions by treatment with the appropriate amount of n-butyllithium at -78 degrees C followed by hydrolysis.
Engman, Lars, Journal of Heterocyclic Chemistry, 1984, vol. 21, p. 413 - 416
作者:Engman, Lars
DOI:——
日期:——
Behrens, Joachim; Hinrichs, Winfried; Link, Thorsten, Phosphorus, Sulfur and Silicon and the Related Elements, 1995, vol. 101, # 1-4, p. 235 - 244