O = P(i-PrNCH2CH2)3NCH3+:: Novel effect of quaternization on the structural metrics of the bicyclic cage

被引：0

作者：

Liu, XD ^{[1
]}

Logsdon, B ^{[1
]}

Jacobson, RA ^{[1
]}

Verkade, JG ^{[1
]}

机构：

[1] Iowa State Univ, Dept Chem, Ames, IA 50011 USA

来源：

HETEROATOM CHEMISTRY | 1999年 / 10卷 / 03期

关键词：

D O I：

10.1002/(SICI)1098-1071(1999)10:3<255::AID-HC13>3.0.CO;2-E

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The title cation features the longest distance between the bridgehead atoms (3.56 Angstrom) so far recorded for phosphatrane cages despite a nontetrahedral CNbrigeheadC angle (similar to 114 degrees). The 70.8 degrees NbridgeheadCCN torsion angles in the bridging moieties produce a substantial twist along the C-3 axis of the structure that does not easily allow racemization of the edge. The resulting rigidity of the twisted cage gives rise to AB patterns for the methylene protons of this cation and its analogues. (C) 1999 John Wiley & Sons, Inc.

引用

页码：255 / 258

页数：4

共 28 条

[1] P(CH3NCH2CH2)(3)N: A nonionic superbase for efficient dehydrohalogenation [J].