[GRAPHICS]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. H-1 NMR, NICS, and an X-ray structural analysis of is reflect the aromatizing effect of double angular fusion on the central ring of the linear [3]phenylene substructure.
[GRAPHICS]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. H-1 NMR, NICS, and an X-ray structural analysis of is reflect the aromatizing effect of double angular fusion on the central ring of the linear [3]phenylene substructure.
作者:Dennis T.-Y. Bong、Eugene W. L. Chan、Rainer Diercks、Peter I. Dosa、Michael M. Haley、Adam J. Matzger、Ognjen Š. Miljanić、K. Peter C. Vollhardt、Andrew D. Bond、Simon J. Teat、Amnon Stanger
DOI:10.1021/ol049225v
日期:2004.6.1
[GRAPHICS]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. H-1 NMR, NICS, and an X-ray structural analysis of is reflect the aromatizing effect of double angular fusion on the central ring of the linear [3]phenylene substructure.