<i>O</i>-(1-Phenylbutyl)benzyloxyacetaldoxime, a Versatile Reagent for the Asymmetric Synthesis of Protected 1,2-Aminoalcohols and 2-Hydroxymethyl Nitrogen Heterocycles
作者:Christopher J. Moody、Tracey S. Cooper、Alexander S. Larigo、Pierre Laurent、Andrew K. Takle
DOI:10.1055/s-2002-34235
日期:——
Addition of organometallic reagents to O-(1-phenylbutyl)benzyloxyacetaldoxime in the presence of boron trifluoride diethyl etherate is highly diastereoselective; the resulting hydroxylamines are readily converted into protected 1,2-aminoalcohols and 2-hydroxymethyl nitrogen heterocycles, including the iminosugar 1,4-dideoxy-1,4-imino-d-ribitol, in high enantiomeric excess.
在硼氟酸二乙醚存在下,有机金属试剂与O-(1-苯基丁基)苄氧基乙醛肟的加成具有高度的非对映选择性;生成的羟胺可方便地转化为受到保护的1,2-氨基醇和2-羟甲基氮杂环化合物,其中包括高对映体纯度的1,4-二脱氧1,4-亚氨基-d-核糖醇。