Photoreductive cyclization of unsaturated aldehydes : An easy access to spiranic molecules
作者:J. Cossy、J.P. Pete、C. Portella
DOI:10.1016/s0040-4039(00)70697-6
日期:1989.1
The photoreductive cyclization of ω-unsaturated aldehydes is an efficient process which leads to substituted cycloalkanols. This process is used as a convenient approach to spiranic molecules.
ω-不饱和醛的光还原环化是导致取代的环烷醇的有效方法。此过程用作螺环分子的便捷方法。
Iron-catalyzed ring-opening of cyclic carboxylic acids enabled by photoinduced ligand-to-metal charge transfer
of 1,n-dicarbonyl compounds through the homolytic C–C bond cleavage of unstrained carbocyclic and heterocyclic ring systems. This method exhibits a lot of synthetic advantages including mild conditions, simple operation, and convenience of amplification. Mechanistic studies support the generation of peroxy radical species via oxygen capture followed by radical fragmentation.
New compounds which have potent V2-vasopressin antagonistic activity are prepared by a 1,6-cyclization using peptide bond formation. The structures of the compounds are characterized by a Pas1,6 or Tas1,6 cyclized unit.