Oxidation of natural targets by dioxiranes. Part 4: A novel approach to the synthesis of N-hydroxyamino acids using dioxiranes
作者:Antonia Detomaso、Ruggero Curci
DOI:10.1016/s0040-4039(00)02107-9
日期:2001.1
An efficient approach to the synthesis of N-hydroxyamino acids in high enantiomeric excess is described; this involves the high-yielding selective N-hydroxylation of N-Boc protected primary amino acid esters with methyl(trifluoromethyl)dioxirane under mild conditions.
Bench-stable imine surrogates for the one-pot and catalytic asymmetric synthesis of α-amino esters/ketones
作者:Huacheng Xu、Adila Nazli、Cheng Zou、Zhi-Peng Wang、Yun He
DOI:10.1039/d0cc06055k
日期:——
xylamines are readily accessible as imine surrogates, which are bench stable and could quantitatively generate the corresponding imines for in situ applications. An unpresented catalyticasymmetric method for the synthesis of α-amino esters and ketones from novel imine surrogates, N,O-bis(tert-butoxycarbonyl)hydroxylamines, as well as its preliminary mechanistic studies are reported. A variety of optically