Attacking boron nucleophiles:: NMR properties of five-membered diazaborole rings

被引:11
作者
Del Bene, Janet E. [1 ]
Elguero, Jose
Alkorta, Ibon
Yanez, Manuel
Mo, Otilia
机构
[1] Youngstown State Univ, Dept Chem, Youngstown, OH 44555 USA
[2] CSIC, Inst Quim Med, E-28006 Madrid, Spain
[3] Univ Autonoma Madrid, Dept Quim, E-28049 Madrid, Spain
关键词
D O I
10.1021/jp067823g
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This paper reports computed NMR spectral data for the diazaborole anion (C2H4B1N2-) and the corresponding neutral five-membered rings with B-H (C2H5B1N2, diazaborole) and B-Li (C2H4B1Li1N2, Li-diazaborole) bonds, which are the central moieties of newly synthesized nucleophilic organoboryl five-membered rings, recently reported by Segawa et al. (Science 2006, 314, 113). Both spin-spin coupling constants and chemical shifts were obtained using high-level ab initio calculations. These data are a necessary complement to the very scarce experimental information available.
引用
收藏
页码:419 / 421
页数:3
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