An Improved Resolution Of 2-Methyl Piperidine And Its Use in The Synthesis Of Homochiral Trans-2,6-Dialkyl Piperidines
作者:Mauro F. A. Adamo、Varinder K. Aggarwal、Matthew A. Sage
DOI:10.1080/00397919908086162
日期:1999.5
Abstract An efficient procedure for the resolution of 2-methylpiperidine is described. The enantiomers were used for a short and effective synthesis of the C2 symmetric piperidine, (+)-lupetidine and (+)-epidihydropinidine.
The fire ant venom alkaloid (′)-solenopsin A was prepared in 4 steps (34%) starting from the N-phenyl-2-undecyl piperidine (1c). The key step in this synthesis involved the dearomatization of the phenyl group of N-phenyl-2-methyl-6-undecyl-piperidine (9c), which was carried out under Birch conditions.
2-cyano Δ3 piperidines vi1 : a general method for the stereoselective synthesis of cis and trans 2,6-dialkylpiperidine alkaloids
作者:Martine Bonin、José R Romero、David S Grierson、Henri-Philippe Husson
DOI:10.1016/s0040-4039(00)87617-0
日期:1982.1
The cis 2,6-dialkylpiperidine alkaloid (±) dihydro-pinidine and the trans alkaloid (±) solenopsin A were synthesized from a common α-aminonitrile synthon . The key step in this synthesis was the stereoselective reductive decyanation of the 1-benzyl-2cyano-2′, 6-dialkylpiperidines and .
Highly efficient, base-catalysed, intramolecular hydroamination of non-activated olefins
作者:Coralie Quinet、Pierre Jourdain、Christophe Hermans、Ali Ates、Isabelle Lucas、István E. Markó
DOI:10.1016/j.tet.2007.11.066
日期:2008.2
The intramolecularhydroamination of a large variety of non-activated alkenes can be efficiently catalysed by small amounts of lithium bases, providing smoothly and in high yields the corresponding five- and six-membered ring heterocycles. Fused and bridged bicyclic amines, of varying ring sizes, can be readily prepared either by a sequential hydroamination process or by a tandem, double addition reaction
One-Pot Cascade Synthesis of Mono- and Disubstituted Piperidines and Pyrrolidines using Carboxylic Acid Reductase (CAR), ω-Transaminase (ω-TA), and Imine Reductase (IRED) Biocatalysts
作者:Scott P. France、Shahed Hussain、Andrew M. Hill、Lorna J. Hepworth、Roger M. Howard、Keith R. Mulholland、Sabine L. Flitsch、Nicholas J. Turner
DOI:10.1021/acscatal.6b00855
日期:2016.6.3
Access to enantiomerically pure chiral mono- and disubstituted piperidines and pyrrolidines has been achieved using a biocatalytic cascade involving carboxylic acid reductase (CAR), ω-transaminase (ω-TA), and imine reductase (IRED) enzymes. Starting from keto acids or keto aldehydes, substituted piperidine or pyrrolidine frameworks can be generated in high conversion, ee, and de in one pot, with each