作者:Daqiang Xu、Kapa Prasad、Oljan Repic、Thomas J. Blacklock
DOI:10.1016/0040-4039(95)01655-4
日期:1995.10
Selective protection of primary amines in the presence of secondary amines and monofunctionalization of symmetric primary and secondary diamines using ethyl trifluoroacetate is described. Effective differentiation of primary, secondary and tertiary alkyl-substituted primary amines from one another by ethyl trifluoroacetate acylation is also demonstrated. These results are explained on the basis of
描述了在仲胺存在下对伯胺的选择性保护以及使用三氟乙酸乙酯对对称伯和仲二胺进行单官能化。还证明了通过三氟乙酸乙酯酰化作用将伯,仲和叔烷基取代的伯胺彼此有效区分。这些结果是基于底物胺的空间和电子效应来解释的。