By utilizing amino allenes, aldehydes, and aryl iodides as readily available building blocks, a simple and modular synthesis of multisubstituted pyridines with flexible control over the substitution pattern has been achieved. The method employs a two-step procedure involving the preparation of "skipped" allenyl imines and a subsequent palladium-catalyzed cyclization.
Silver-Catalyzed Intramolecular Aminofluorination of Activated Allenes
作者:Tao Xu、Xin Mu、Haihui Peng、Guosheng Liu
DOI:10.1002/anie.201103225
日期:2011.8.22
A nice combination: The intramolecular oxidative aminofluorination of allenes using silver catalysis and FN(SO2Ph)2 as the fluorinating reagent has been developed. This reaction represents an efficient method for the synthesis of various 4‐fluoro‐2,5‐dihydropyrrole compounds. Further transformation provided the corresponding fluorinated pyrrole derivatives in good yields (see scheme).
This invention relates to pharmaceutical compositions containing certain inhibitors of lysyl oxidase for the treatment of diseases and conditions associated with the abnormal deposition of collagen.