Synthesis of α-Amino Acid Precursors Directly from Aldehydes Using Masked Acyl Cyanide Reagents and N,O-Dialkylated Hydroxylamines
作者:Hisao Nemoto、Rujian Ma、Tomoyuki Kawamura、Masaki Kamiya、Masayuki Shibuya
DOI:10.1021/jo0607515
日期:2006.8.1
A synthetic methodology for the synthesis of α-amino acid precursors directly from the corresponding aldehydes using N,O-dialkylated hydroxylamines and masked acyl cyanide (MAC) reagents was developed. The one-pot reaction can be carried out under mild conditions and without a separate purification step of the imino species. The method was applied to the synthesis of optically pure (+)-4-methylphenylglycine
开发了一种使用N,O-二烷基化羟胺和掩蔽的氰化氰(MAC)试剂直接从相应的醛合成α-氨基酸前体的合成方法。一锅法反应可以在温和的条件下进行,而无需单独的亚氨基物种纯化步骤。该方法以Abiko-Masamune的三环1,2-恶唑烷为手性助剂,用于光学纯的(+)-4-甲基苯基甘氨酸及其衍生物的合成。