low‐valent Group 14 elements, namely silagermenylidene A, is achieved by reduction of Tip2SiCl2 and NHC⋅GeCl2 (Tip=2,4,6‐iPr3C6H2; NHC=1,3‐diisopropyl‐4,5‐dimethylimidazol‐2‐ylidene). The potential of A as a synthon is demonstrated by the formal [2+2] cycloaddition with phenylacetylene to afford NHC‐stabilized cyclic germylene B.
稳定亚
乙烯基类似物:一种新的化合物类低原子价14族元素,即silagermenylidene的第一代表性的合成甲,通过还原提示的实现2的SiCl 2和NHC⋅GeCl 2(提示= 2,4,6- i Pr 3 C 6 H 2; NHC = 1,3-
二异丙基-4,5-二甲基
咪唑-2-亚基)。的电位甲作为合成子是由正式[2 + 2]环加成与苯基
乙炔得到NHC稳定环状
锗烯证明乙。