Syntheses of syn and anti doublebent [5] phenylene

…, AJ Matzger, OŠ Miljanic, KPC Vollhardt, AD Bond…

Index: Bong, Dennis T.-Y.; Chan, Eugene W. L.; Diercks, Rainer; Dosa, Peter I.; Haley, Michael M.; Matzger, Adam J.; Miljanic, Ognjen S.; Vollhardt, K. Peter C.; Bond, Andrew D.; Teat, Simon J.; Stanger, Amnon Organic Letters, 2004 , vol. 6, # 13 p. 2249 - 2252

Full Text: HTML

Citation Number: 24

Abstract

The parent and dipropyl-substituted anti (1a, b) and syn doublebent (2a, b)[5] phenylenes have been assembled by CpCo-catalyzed double cyclization of regiospecifically constructed appropriate hexaynes. 1H NMR, NICS, and an X-ray structural analysis of 1a reflect the aromatizing effect of double angular fusion on the central ring of the linear [3] phenylene substructure.