作者:J. Blum、M. Zimmerman
DOI:10.1016/0040-4020(72)80133-9
日期:1972.1
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
研究了合成7,14-二甲基-,7,14-二氯-和7,14-二氟-二苯并[ a,h ]蒽的光化学路线。通过2,5-二苯乙烯基或2,5-双-(2-碘苯乙烯基)-对二甲苯的光环化反应获得7,14-二甲基衍生物,而二氯-和二氟-二苯并[ a,h ]蒽可以仅由相应的2,5-双-(2-碘苯乙烯基)-1,4-二卤代苯制备。2,5-二苯乙烯基-1,4-二溴苯在辐射下会脱溴。