Efficient synthesis of symmetrically and unsymmetrically substituted hexaphenylbenzene analogues by suzuki-miyaura coupling reactions

Chem Asian J. 2008 Apr 7;3(4):759-66. doi: 10.1002/asia.200700370.

Abstract

A series of symmetrically and unsymmetrically substituted hexaphenylbenzene (HPB) analogues were efficiently synthesized by using a sterically hindered Suzuki-Miyaura cross-coupling reaction of arylboronic acids with 1,4-diiodo-2,3,5,6-tetraarylbenzenes under our optimized reaction conditions. The 1,4-diiodo-2,3,5,6-tetraarylbenzenes can be readily prepared by using a one-pot Hart reaction. Oxidative cyclodehydrogenation of the dibromo derivative with FeCl(3) gave the corresponding hexabenzocoronene (HBC) derivative in good yield.

Publication types

  • Research Support, Non-U.S. Gov't