dimethyl derivatives, 8-R-nido-7,8,9-C3B8H10-10-Me and 8-R-nido-7,8,9-C3B8H9-10,11-Me2. To demonstrate the general character of the alkylation procedure, B-dialkyl derivatives 8-Ph-nido-7,8,9-C3B8H9-10,11-R12 (R1 = C3H5 (All) and CH2Ph) were prepared via analogous alkylation of 8-Ph-nido-7,8,9-C3B8H11 with allyl and benzyl bromides. The structures were substantiated by multinuclear (11B, 1H and 13C) NMR
在THF中存在NaH的情况下,对8-R-
氨基-7,8,9-C 3 B 8 H 11三
糖脂(R = Ph,p -tol和2-
萘基(2-naph))进行顺序甲基化开路表面B(10,11)的位置,以产生一和二甲基衍
生物,8- R-巢-7,8,9-C 3乙8 ħ 10 -10-ME和8-R-巢-7,8- ,9-C 3 B 8 H 9 -10,11-Me 2。为了证明烷基化程序的一般特性,B-二烷基衍
生物8- Ph- nido -7,8,9-C 3 B 8 H通过将8-Ph- nido -7,8,9-C 3 B 8 H 11与以下化合物进行类似的烷基化反应制备9 -10,11-R 1 2(R 1 = C 3 H 5(全部)和CH 2 Ph)。烯丙基和苄基
溴。通过多核(11 B,1 H和13 C)NMR光谱证实了该结构,并通过质谱确定了8- Ph- nido -7,8,9-C 3 B 8 H 9 -10