作者:D. Sparfel、F. Gobert、J. Rigaudy
DOI:10.1016/0040-4020(80)80116-5
日期:1980.1
Thermolysis of the meso-pentacenic photooxides 1P, 1dP and 1tP, in solution, brings about various isomerizations which appear strongly affected by the phenyl substituents. Thus the pentacene photooxide-lP gives only the bicyclic acetal 9P, beside pentacenequinone 5P in high ratio. With the photooxides 1dP of 6,13-diphenylpentacene and 1tP of 5,7,12,14-tetraphenylpentacene, the main products are the
热解的的内消旋-pentacenic photooxides 1P,1DP和1TP,在溶液中,导致该出现强烈影响由苯基取代基的各种异构化。因此,并五苯光氧化物-1P仅以高比例并入并五苯醌5P而得到双环缩醛9P。以6,13-二苯并五苯的光氧化物1dP和5,7,12,14-四苯并五苯的光氧化物1tP为主要产物的是萘环丁烯二醚8dP和8tP,它们与双环缩醛9dP和9tP竞争形成。在第一种情况下,是带有新型异构体的双萘呋喃二醚13dP。这些差异是根据苯基对早先建立的内消旋-乙酰光氧化物的异构化过程的连续步骤的影响来解释的。