Eine einfache und flexible Synthese von Pyrrolen ausα,β-ungesättigten Sulfonen
摘要:
The addition of alkyl isocyanoacetates and isocyanoacetonitrile to alpha,beta-unsaturated sulfones affords a convenient and broad access to pyrroles with unusual substitution patterns (see Scheme 2). The alpha,beta-unsaturated sulfones required as starting materials are easily obtained from different olefines.
Synthesis of a novel chlorin-quinone system for the investigation of light induced electron transfer
作者:Yvonne Abel、Franz-Peter Montforts
DOI:10.1016/s0040-4039(97)00186-x
日期:1997.3
In order to investigate the effect of the molecular symmetry on the light induced electron transfer in chlorin-quinone dyades we aimed at the synthesis of chlorin-quinone models 18a and 18b in which the quinone is situated at ring D adjacent to the reduced pyrrole ring A and thus orientated along the y-axis. (C) 1997 Elsevier Science Ltd.