Synthesis and Properties of 3-Arylcyclohepta[4,5]pyrrolo[1,2-a]-1,3,5-triazine-2,4(3H)-diones and Related Compounds: Photo-induced Autorecycling Oxidation of Amines
作者:Makoto Nitta、Tomoyuki Morito、Yuhki Mitsumoto、Shin-ichi Naya
DOI:10.3987/com-05-10423
日期:——
3-Phenyl- and 3-(4-nitrophenyl)cyclohepta[4,5]pyrrolo[1,2-a]-1,3,5-triazine-2,4(3H)-diones and the corresponding arylimino derivatives (5a,b) and (6a,b) were synthesized by the reaction of (l-azaazulen-2-yl)imino-triphenylphosphorane with aryl isocyanates and subsequent heterocyclization reaction with a second isocyanate. Related cation (lla), which was derived from methylation of 5a, is also prepared
3-苯基-和 3-(4-硝基苯基)环庚[4,5]吡咯并[1,2-a]-1,3,5-三嗪-2,4(3H)-二酮和相应的芳基亚氨基衍生物 (5a ,b) 和 (6a,b) 是通过 (l-azaazulen-2-yl) 亚氨基-三苯基正膦与芳基异氰酸酯的反应以及随后与第二种异氰酸酯的杂环化反应合成的。还制备了衍生自 5a 甲基化的相关阳离子 (IIa)。与相关化合物相比,这些化合物的电化学还原表现出更大的负还原电位。其中一些化合物对一些胺进行了光诱导的自动循环氧化,以超过 100% 的产率得到相应的亚胺。