Dearomative Migratory Rearrangement of 2-Oxypyridines Enabled by α-Imino Rhodium Carbene
作者:Guangyang Xu、Ying Shao、Shengbiao Tang、Qun Chen、Jiangtao Sun
DOI:10.1021/acs.orglett.0c03533
日期:2020.12.4
migratory rearrangement reactions of 2-oxypyridines with N-sulfonyl-1,2,3-triazoles have been developed under rhodium catalysis, providing a reliable and efficient protocol for accessing N-substituted 2-pyridones. These two distinct rearrangements feature the controllable 1,4-migration of a carbonate group from O-to-C as well as the O-to-N 1,6-migration of an acyl group via α-imino rhodium carbene transfer
Hydrogenation reactions of some [1,2,3]triazolo[1,5-a]pyridines and their benzo derivatives, [1,2,3]-triazolo[1,5-a]quinoline and [1,2,3]triazolo[5,1-a]isoquinoline are studied. In general, the pyridinering is more easily hydrogenated than the triazole or benzenerings.
某些[1,2,3]三唑并[1,5- a ]吡啶及其苯并衍生物,[1,2,3]-三唑并[1,5- a ]喹啉和[1,2,3]的氢化反应研究了三唑并[5,1- a ]异喹啉。通常,吡啶环比三唑或苯环更容易氢化。