DIFFERENTIATION OF STEREOISOMERIC DIOLS BY USING CH3OB+OCH3 IN A SMALL FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE MASS-SPECTROMETER

被引：36

作者：

LEECK, DT

RANATUNGA, TD

SMITH, RL

PARTANEN, T

VAINIOTALO, P

KENTTAMAA, HI

机构：

[1] PURDUE UNIV,DEPT CHEM,W LAFAYETTE,IN 47907

[2] UNIV JOENSUU,DEPT CHEM,SF-80101 JOENSUU,FINLAND

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY AND ION PROCESSES | 1995年 / 141卷 / 03期

基金：

芬兰科学院; 美国国家科学基金会;

关键词：

BOROCATIONS; DIOLS; FT-ICR; ION-MOLECULE REACTIONS; STEREOISOMERS;

D O I：

10.1016/0168-1176(94)04111-J

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

Gas-phase reactions of stereoisomeric cyclic diols with CH3OB+OCH3 were examined in a small Fourier transform ion cyclotron resonance mass spectrometer. CH3OB+OCH3 is a strong electrophile and rapidly abstracts an OH group from the diols studied. This very exothermic reaction is followed by spontaneous fragmentation of the resulting ion. In addition to this reaction, cis-diols also react with CH3OB+OCH3 by an intramolecular displacement of CH OH in the initially formed, short-lived adduct ion. The product distributions allow distinction between the cis- and trans-isomers of 1,2-cyclopentanediol, and between the cis-(diendo- and diexo-) and trans-isomers of 2,3-trinorbornanediol.

引用

页码：229 / 240

页数：12

共 34 条

[1] CONFORMATIONAL EFFECTS IN CHEMICAL IONIZATION SPECTRA OF DERIVATIVES OF ISOMERIC 2,3-DIMETHYL-1,4-CYCLOPENTANEDIOLS [J].