N-Acyltrifluoromethanesulfonamides as new chemoselective acylating agents for aliphatic and aromatic amines
作者:Sophie Guillard、Andrea Aramini、Maria C. Cesta、Sandro Colagioia、Silvia Coniglio、Filippo Genovese、Giuseppe Nano、Emanuela Nuzzo、Valerie Orlando、Marcello Allegretti
DOI:10.1016/j.tet.2006.03.097
日期:2006.6
N-Acyltrifluoromethanesulfonamides show considerable advantages over the non fluorinated analogues by virtue of their higher reactivity and acidity. The reaction chemoselectivity has been investigated using a wide range of amines. The sensitivity of the reaction to steric and electronic effects confirms the potential application of these reagents in chemoselective acylation of polyamines.
这项工作描述了N-酰基磺酰胺类铵盐内部缩合的研究进展。N-酰基三氟甲烷磺酰胺由于其较高的反应性和酸度而显示出优于非氟化类似物的显着优点。已使用多种胺研究了反应的化学选择性。反应对空间效应和电子效应的敏感性证实了这些试剂在多胺化学选择性酰化中的潜在应用。