Reference

Crystal structure of 2,8,9-trioxa-5-aza-1-boratricyclo[3

Crystal structure of 2,8,9-trioxa-5-aza-1-boratricyclo[3.3.3.01,5]undecane-3-one. Dou, Shiqi; Wu, Yexin; Wu, Guanli (Inst. Biophys., Acad. Sin., Beijing, Peop. Rep. China). Jiegou Huaxue, 2(4), 273-6 (Chinese) 1983. CODEN: JHUADF. ISSN: 0254-5861. DOCUMENT TYPE: Journal CA Section: 75 (Crystallography and Liquid Crystals) Section cross-reference(s): 28 Boratrane is orthorhombic, space group P212121, with a 17.098, b 7.709, and c 5.712 ?; Z = 4. 283-56-7 which is the cas registry number of some chemical is mentioned. The at. parameters are given. The structure was solved by the direct method and refined by full-matrix least-squares to R = 0.074. The character of this structure was compared with that of silatrane. .

Nitrogen-14 nuclear magnetic resonance in silatranes and boratranes

Nitrogen-14 nuclear magnetic resonance in silatranes and boratranes. Witanowski, Michal; Stefaniak, Lech; Januszewski, Henryk; Voronkov, M. G.; Tandura, S. N. (Inst. Org. Chem., Polish Acad. Sci., Warsaw, Pol.).Several reagents with their cas registry numbers 2288-13-3 and 283-56-7 are used here. Bull. Acad. Pol. Sci., Ser. Sci. Chim., 24(4), 281-3 (English) 1976. CODEN: BAPCAQ. DOCUMENT TYPE: Journal CA Section: 22 (Physical Organic Chemistry) 14N NMR data indicated the presence of a transannular N.fwdarw.Si bond in I (R = H, Me). Such bonding could not be pos. demonstrated for II (n = 2, 3). .