About the Factors Which Govern the Ring-opening of a-Lactams with Benzylamine I. The Relative Stability of the a-Lactam and the Substituent on Nitrogen
作者:István Lengyel、Victor Cesare、Sihao Chen、Tony Taldone
DOI:10.3987/com-02-9453
日期:——
Eight α-lactams (aziridinones) of varying stability, one of them previously unreported, were synthesized and reacted with benzylamine. Three of the α-lactams, 1-(1-adamantyl)-3,3-dimethylaziridinone (2j), 3,3-dimethyl-1-triphenylmethylaziridinone (2m), and 3-phenyl-1-triphenylmethyl-aziridinone (20) gave α-benzylaminoamides (3j, 3m, 3o) as products, indicating C 3 -N bond cleavage. Four α-lactams, 1,
合成了八种不同稳定性的α-内酰胺(氮丙啶酮),其中一种以前未报道过,并与苄胺反应。三种 α-内酰胺,1-(1-金刚烷基)-3,3-二甲基氮丙啶酮 (2j)、3,3-二甲基-1-三苯基甲基氮丙啶酮 (2m) 和 3-苯基-1-三苯基甲基-氮丙啶酮 (20)得到α-苄基氨基酰胺(3j,3m,3o)作为产物,表明C 3 -N键断裂。四种 α-内酰胺、1,3-二叔丁基氮丙啶酮 (2g)、1-叔丁基-3-三苯基甲基氮丙啶酮 (2i)、1-(1-金刚烷基)-3-叔丁基氮丙啶酮 (2k) 和 I -(I-金刚烷基)-3-三苯基甲基氮丙啶酮 (2l) 产生 N-苄基酰胺 (4g, 4i, 4k, 4l),由 C 2 -N 键断裂产生。3-(1-金刚烷基)-1-三苯基甲基氮丙啶酮 (2n) 得到两种加合物 (3n, 4n) 的混合物。基于这些实验结果,