Surprising reactivity of (methyl 2-acetamidoacrylate)tricarbonyliron(0) leading to the synthesis of β,β,β-trialkyl α-amino acids
作者:James Barker、Stephen L. Cook、M. Elena Lasterra-Sánchez、Susan E. Thomas
DOI:10.1039/c39920000830
日期:——
Addition of methyllithium followed by tertiary haloalkanes to readily available and air-stable (methyl 2-acetamidoacrylate)tricarbonyliron(0)1, gives protected β,β,β-trialkyl α-amino acids which are hydrolysed to give tert-leucine 10 and the new α-amino acids 2-amino-3,3-dimethylpentanoic acid 11 and 2-amino-3,3-dimethylhexanoic acid 12.
通过甲基锂的添加,随后与易于获得且对空气稳定的(甲基2-乙酰胺基丙烯酸酯)三羰基铁(0)1反应的三级卤代烷,可以制备得到保护的β,β,β-三烷基α-氨基酸,这些化合物经水解后生成特戊氨酸10以及新的α-氨基酸,即2-氨基-3,3-二甲基戊酸11和2-氨基-3,3-二甲基己酸12。