Intermolecular sp 3 C–H bond functionalization of alkyl amides as a new method for the one-pot synthesis of functional neo alkyl amides with remote functional groups
作者:Irena S. Akhrem、Dzhul’etta V. Avetisyan、Lyudmila V. Afanas’eva、Oleg I. Artyushin、Nikolai D. Kagramanov
DOI:10.1016/j.tetlet.2014.11.115
日期:2015.1
The one-pot, regioselective, remote functionalization of amides of octanoic acid [R2NCOC7H15, NR2 = NH2, NEt2, NC4H8O, (morpholinyl)] via Csp3–H bond cleavage with CO and various nucleophiles (EtOH, iPrOH, CF3CH2OH, H(CF2)2CH2OH, C8H17SH, Et2NH, morpholine, furan, thiophene, and anisole) in the presence of the superelectrophilic complex, CBr4·2AlBr3 has been performed for the first time. This methodology
通过CO裂解Csp 3 -H键,对辛酸[R 2 NCOC 7 H 15,NR 2 = NH 2,NEt 2,NC 4 H 8 O,(吗啉基)]的酰胺进行一锅区域选择性远程官能化。在超亲电子存在下,以及各种亲核试剂(EtOH,i PrOH,CF 3 CH 2 OH,H(CF 2)2 CH 2 OH,C 8 H 17 SH,Et 2 NH,吗啉,呋喃,噻吩和苯甲醚)配合物,CBr 4 ·2AlBr第一次执行3。这种方法提供了具有新结构的远程官能团的酰胺的新的具有合成挑战性和有希望的衍生物的获取。已证明使用CBr 4 ·2AlBr 3将辛烷酰胺氧化环化为具有C(Me)Et基团且与杂原子相邻的六元环酰胺。