2-functional 1,3-dioxa-2,4,7-trisilacycloheptanes was synthesized and characterized by means of 29Si NMR spectroscopy, gaschromatography, high performance liquid chromatography and gas chromatography-mass spectrometry. The signals were assigned to the various configurational isomers. This assignment was confirmed by independent synthesis of individual isomers. The sequence of the NMR signals of the all-cis
合成了一系列2-官能的1,3-二氧杂-2,4,7-三硅杂环庚烷,并通过29 Si NMR,气相色谱,高效液相色谱和气相色谱-质谱联用对其进行了表征。信号被分配给各种构型异构体。通过个别异构体的独立合成证实了这种归属。发现确定立体化学所需的顺式和反式异构体的NMR信号顺序与相应的环三硅氧烷的顺序相同。
POPOWSKI, E.;HOLST, N.;KELLING, H., Z. ANORG. UND ALLG. CHEM., 1982, 494, N 11, 166-178