On the syntheses and photochemical properties of novel pyrrolizinone derivatives as photosensitizers
作者:Rupert Bauer、Günter Heisler、Christian Königstein
DOI:10.1016/s0040-4020(01)81828-7
日期:1993.7
The syntheses of the pyrrolizinone derivatives 8H-6-methyl-7-phenylthieno[2,3-b]-pyrrolizin-8-one (1), 10H-6,7,8,9-tetrahydro(1)benzothieno[2,3-b]pyrrolizin-10-one (2), 8H-6-phenylthieno[2,3-b]pyrrolizin-8-one (3), 8H-methylthieno[2,3-b]pyrrolizin-8-one (4), are described. In contrast to benzophenone, compounds 1 – 4 absorb in the visible light region (ε436 nm = 400, 420, 450, and 320 l mol−1 cm−1
吡咯嗪酮衍生物8H-6-甲基-7-苯基噻吩并[2,3-b]-吡咯嗪-8-一(1),10H-6,7,8,9-四氢(1)苯并噻吩并[2, 3-b]吡咯烷酮-10-one (2),8H-6-苯基噻吩并[2,3-b]吡咯烷酮-8-one (3),8H-甲基噻吩并[2,3-b] pyrrolizin-8-one ( 4),描述。与此相反,以二苯甲酮,化合物1 - 4吸收在可见光区域(ε 436nm处= 400,420,450,和320升摩尔-1厘米-1为化合物1 - 4,分别地)。9-氟酮和化合物1-4在2-丙醇的存在下,在紫外线(λ> 280 nm)的照射下,它们能够还原甲基紫精。化合物1-4显示出有趣的荧光行为,具体取决于溶剂和Ph值,将对此进行详细讨论。