A Cascade Aza-Cope/Aza-Prins Cyclization Leading to Piperidine Derivatives
作者:Jothi L. Nallasivam、Rodney A. Fernandes
DOI:10.1002/ejoc.201403607
日期:2015.3
The cascadeaza-Cope/aza-Prinscyclization of homoallylamines to give substituted piperidines has been explored. The use of glyoxalic acid as the carbonyl component afforded bicyclic structures as a result of the internal carboxylate anion trapping the intermediate cation. The unimolecular bis-, tris-, and tetrakis(homoallylamine)s efficiently delivered the appended bis-, tris- and tetrakis(piperidine-4-ol)s
Base-Promoted C→N Acyl Rearrangement: An Unconventional Approach to α-Amino Acid Derivatives
作者:Iratxe Ugarriza、Uxue Uria、Luisa Carrillo、Jose L. Vicario、Efraim Reyes
DOI:10.1002/chem.201402514
日期:2014.9.8
N‐alkyl aminomalonates undergo a fast and selective intramolecular C→N acylrearrangement reaction in the presence of a strong base, leading to N‐protected glycinates in excellent yield. Moreover, the fact that the reaction proceeds through a nucleophilic enolate intermediate has been used for implementing a tandem rearrangement/alkylation sequence that has been applied to the preparation of synthetically
DESHONG, PH.;LEGINUS, J. M.;LANDER, S. W., J. ORG. CHEM., 1986, 51, N 4, 574-576
作者:DESHONG, PH.、LEGINUS, J. M.、LANDER, S. W.
DOI:——
日期:——
A stereoselective approach to the synthesis of allylic and homoallylic amines
作者:Philip DeShong、Joseph M. Leginus、Stephen W. Lander
DOI:10.1021/jo00354a040
日期:1986.2
10.1039/d4nj01189a
作者:Yi, Ze-Yu、Sun, Na、Gu, Peiming、Ji, Yang、Li, Rui
DOI:10.1039/d4nj01189a
日期:——
The three-component reaction of a diazocompound, azide and allylboronate was explored, and Rh2(esp)2 was utilized as the optimal catalyst. A series of α-amino esters were efficiently produced from the ethyl diazoacetate in 57–84% yields, and excellent diastereoselectivities were observed with the reaction employing (E)-allylboronate as the alkylation reagent. The α-amino ketone or homoallylic amine