N-Hydroxymethyl group for configurationally stable N-alkoxycarbonyl α-amino aldehydes
作者:Seung Il Hyun、Young Gyu Kim
DOI:10.1016/s0040-4039(98)00715-1
日期:1998.6
Attachment of an N-hydroxymethyl group to N-Boc-α-amino aldehyde enhanced greatly the configurational stability of the stereogenic carbon α to the aldehyde group by shifting the equilibrium from an open form of ω-hydroxyaldehyde to a closed form of hemiacetal. The N-hydroxymethyl group was introduced by treating N-Boc-α-amino acids with formaldehyde in the presence of an acid catalyst followed by reduction
一个的附件Ñ羟甲基到Ñ -Boc-α氨基醛通过从ω羟基醛的开放形式移位平衡向半缩醛的封闭形式增强大大立体异构碳原子的α到醛基的外形稳定性。该Ñ -羟甲基,通过处理引入Ñ在酸催化剂随后还原与DIBALH的存在下与甲醛-Boc-α氨基酸。