Synthesis of α-CN and α-CF3 N-Heterocycles through Tandem Nucleophilic Additions
摘要:
Using a readily available secondary aminoalkyne as starting material, a powerful strategy was discovered to prepare precursors of biologically important unnatural cyclic aminoacids and fluorinated N-heterocycles with important ring sizes (e.g., 5-7) in a one-pot reaction using two nucleophilic additions in a tandem fashion.
Synthesis of α-CN and α-CF<sub>3</sub> N-Heterocycles through Tandem Nucleophilic Additions
作者:Junbin Han、Bo Xu、Gerald B. Hammond
DOI:10.1021/ol2011902
日期:2011.7.1
Using a readily available secondary aminoalkyne as starting material, a powerful strategy was discovered to prepare precursors of biologically important unnatural cyclic aminoacids and fluorinated N-heterocycles with important ring sizes (e.g., 5-7) in a one-pot reaction using two nucleophilic additions in a tandem fashion.
From Cyclic Ketimines to α‐Substituted Cyclic Amino Acids and their Derivatives: Influence of Ring Size and Substituents on Stability and Reactivity of Cyclic Aminonitriles
作者:Natalia G. Voznesenskaia、Olga. I. Shmatova、Anna A. Sosnova、Valentine G. Nenajdenko
DOI:10.1002/ejoc.201801087
日期:2019.1.31
A general route to alpha‐substituted cyclic amino acids was elaborated. The approach is based on Strecker reaction with cyclic ketimines. The series of 5–7 membered amino nitriles having different substituents were prepared. Synthesis of alpha‐substituted prolines and their amides was elaborated starting from the corresponding 5‐membered ketimines