Photoinduced electron-transfer systems consisting of electron-donating pyrenes or anthracenes and benzimidazolines for reductive transformation of carbonyl compounds

• DOI: 10.1016/j.tet.2006.03.061
• Publication Date: 2006-05-05T05:51:57Z
• Authors: Eietsu Hasegawa; Shinya Takizawa; Takayuki Seida; Akira Yamaguchi; Naoto Yamaguchi; Naoki Chiba; Tomoya Takahashi; Hiroshi Ikeda; Kimio Akiyama
• Keywords: 01 natural sciences; 0104 chemical sciences

Abstract Photoinduced electron-transfer reactions of several ketone substrates were studied to evaluate the utilities of 1,6-bis(dimethylamino)pyrene (BDMAP), 1,6-dimethoxypyrene (DMP), 9,10-bis(dimethylamino)anthracene (BDMAA), and 9,10-dimethoxyanthracene (DMA) as electron-donating sensitizers cooperating with 2-aryl-1,3-dimethylbenzimidazolines. BDMAP and DMP generally led higher conversion of ketones and better yield of reduction products compared to BDMAA and DMA.