作者:Masayuki Kawakami、Makoto Suzuki、Hideyoshi Kawai、Keizo Ogawa、Tadao Shishido
DOI:10.1016/s0040-4039(98)00038-0
日期:1998.3
A rhodacyanine dye, 1-ethyl-2-[[3-ethyl-5-(3-methylbenzothiazolin-2-ylidene)-4-oxothiazolidin-2-ylidene]-methyl] pyridinium chloride (MKT 077, 1) was oxidized by self-sensitized singlet oxygen to produce two carbonyl compounds under photo-radiation, one of which was further rearranged via Norrish Type I like cleavage to give new types of merocyanine dyes (5 and 8). The merocyanine dyes were also synthesized by the treatment of thioamide (6) with oxalyl chloride. (C) 1998 Elsevier Science Ltd. All rights reserved.