Tetrahedron

Photocyclization of substituted 1, 4-distyrylbenzenes to dibenz [a, h] anthracenes

J Blum, M Zimmerman

文献索引：Blum,J.; Zimmermann,M. Tetrahedron, 1972 , vol. 28, p. 275 - 280

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被引用次数: 29

摘要

A photochemical route for the synthesis of 7, 14-dimethyl-, 7, 14-dichloro-, and 7, 14-difluoro- dibenz [a, h] anthracene has been investigated. The 7, 14-dimethyl derivative was obtained by photocyclization of either 2, 5-distyryl-or 2, 5-bis-(2-iodostyryl)-p-xylene, while the dichloro-and difluoro-dibenz [a, h] anthracene could be prepared only from the corresponding 2, 5-bis-(2-iodostyryl)-1, 4-dihalobenzenes. 2, 5-Distyryl-1, 4- ...