作者:Harald Bock、Daniel Subervie、Pierre Mathey、Anirban Pradhan、Parantap Sarkar、Pierre Dechambenoit、Elizabeth A. Hillard、Fabien Durola
DOI:10.1021/ol500154k
日期:2014.3.21
alkylamine, yield diarylmaleimides in a one-pot procedure. The arylglyoxylic acids are obtained by arene acylation with ClCOCO2Et and reduced with NaI and hypophosphorous acid to the arylacetic acids. With 2,7-di-tert-butyl-pyren-4-yl or chrysen-6-yl as the aryl, photocyclodehydrogenation of the diarylmaleimides yields substituted helicenes which can be reduced to stable anions. The helicenes combine bathochromically
芳基乙醛酸与芳基乙酸的珀金缩合,然后添加烷基胺,通过一锅法制得二芳基马来酰亚胺。芳基乙醛酸通过用ClCOCO 2 Et芳烃酰化而获得,并用NaI和次磷酸还原为芳酸。2,7-二-叔丁基芘-4-基或屈(chrysene)-6-基为芳基,取代的diarylmaleimides产量photocyclodehydrogenation helicenes这可以降低到稳定的阴离子。螺旋体相对于其前体将红移和蓝移吸收结合起来。