Synthesis of a Bisdienophilic Phthalocyanine and of Precursors for Repetitive Diels‐Alder Reactions Based on Hemiporphyrazines and Phthalocyanines
作者:Patrick Stihler、Bernd Hauschel、Michael Hanack
DOI:10.1002/cber.19971300620
日期:1997.6
The specific synthesis of a metal-free bisdienophilicphthalocyanine 193, suitable for repetitive Diels-Alder reactions, is reported. This was achieved by condensation of 191,3,3-trichloro-6/7-nitroioindolenine (191) and 4,9-dibutoxy-2,3,5,8-tetrahydro-1,3-diimino-1H-5,8-epoxybenz[f]isoindoline (2). The ability of 3 to undergo Diels-Alder reactions was tested by reaction with an excess of 1,2,3,4-