Alternative syntheses of the zwitterionic compounds 7-L-nido-7,8,9-C3B8H10(where L = H2Nâ, Me3N, and ButNH2) are reported from reactions involving the [indo-5,6-C2B8H11]â anion, the CNâ anion and/or alkyl isocyanides RNC (for R = But); deamination of the Me3N derivative leads to the first unsubstituted eleven-vertex tricarbaboranes nido-7,8,9-C3B8H12 and [nido-7,8,9-C3B8H11]â.
两性离子化合物 7-L-nido-7,8,9-C3B8H10(其中 L =
H2N–、Me3N 和 ButNH2)的替代合成是通过涉及 [indo-5,6-C2B8H11]– 的反应进行报道的阴离子、CN-阴离子和/或烷基异
氰化物RNC(对于R = But); Me3N 衍
生物的脱
氨作用产生第一个未取代的十一顶点三碳
硼烷 nido-7,8,9-C3B8H12 和 [nido-7,8,9-C3B8H11]−。