Highly Efficient aza-Baylis−Hillman Reaction of N-Tosylated Imines with MVK, Acrolein, and Phenyl Acrylate or α-Naphthyl Acrylate: Lewis Base Effects and A Convenient Method to Synthesize α,β-Unsaturated β-Amino Carbonyl Compounds
摘要:
This paper describes several highly efficient aza-Baylis-Hillman reactions of N-tosylated imines with MVK, acrolein, and phenyl acrylate or alpha-naphthyl acrylate in the presence of a Lewis base. In most cases, the reaction can be completed within 1 h using the appropriate Lewis base catalyst. An efficient method to synthesize beta-amino ketones, aldehydes and esters in high yields and short reaction time has been developed.
Utility of Allylic Azides for the Synthesis of Fused Triazoles and Tetrazoles via Intramolecular Cycloaddition¹
作者:Sanjay Batra、Amita Mishra、Samiran Hutait、Subhendu Bhowmik、Neeraj Rastogi、Raja Roy
DOI:10.1055/s-0029-1218847
日期:2010.8
The synthesis of a variety of annulated triazoles and tetrazoles from differently substituted allyl azides, afforded from the Baylis-Hillman adduct of acrylates, using intramolecularcycloaddition approach is described. Baylis-Hillman - allyl azide - cycloaddition - triazole - tetrazole This is CDRI communication No. 7938.
Synthesis of quinolines from the Baylis–Hillman acetates via the oxidative cyclization of sulfonamidyl radical as the key step
作者:Jae Nyoung Kim、Yun Mi Chung、Yang Jin Im
DOI:10.1016/s0040-4039(02)01314-x
日期:2002.8
Ethyl 3-quinolinecarboxylates 5 were synthesized in good to moderate yields from the Baylis-Hillman acetates 1 via the oxidative cyclization reaction of the N-tosylamidyl radical, which was generated from the rearranged tosylamide derivatives 2 by iodobenzene diacetate and iodine. (C) 2002 Elsevier Science Ltd. All rights reserved.