Simple and Convenient Approach for Synthesis of Tetrahydroquinoline Derivatives and Studies on Aza-Cope Rearrangement
作者:V. S. Prasada Rao Lingam、Abraham Thomas、Khagga Mukkanti、Balasubramanian Gopalan
DOI:10.1080/00397911.2010.493258
日期:2011.5.4
Abstract A simple and novel synthesis of 1,2,3,4-tetrahydroquinoline derivatives by polyphosphoric acid–assisted reaction of N-aryl allyl anilines prepared from anilines has been reported. The generality and scope of the approach has been demonstrated by extending it to the synthesis of 1,2,5,6-tetrahydro-4H-pyrrolo[3,2,1-ij]quinoline (lilolidine) and 2,3,6,7-tetrahydro-1H,5H-pyrido[3,2,1-ij]quinoline
An Efficient and Convenient Palladium Catalyst System for the Synthesis of Amines from Allylic Alcohols
作者:Debasis Banerjee、Rajenahally V. Jagadeesh、Kathrin Junge、Henrik Junge、Matthias Beller
DOI:10.1002/cssc.201200247
日期:2012.10
A novel catalystsystem for efficient amination of allylic alcohols with aryl and alkyl amines is presented. By applying a convenient combination consisting of Pd(OAc)2/1,10‐phenanthroline, a variety of allylic alcohols reacted smoothly to give the corresponding secondary and tertiary amines in good to excellent yields with high regioselectivity. The usefulness of our protocol is demonstrated in the
A new direct catalytic amination of allylic alcohols promoted by the combination of platinum and a large bite-angle ligand DPEphos was developed in which the allylic alcohol was effectively converted to a pi-allylplatinum intermediate without the use of an activating reagent. The use of the DPEphos ligand was essential for obtaining high catalyst activity and high monoallylation selectivity of primary