EXPERIMENTAL STUDIES OF THE ANOMERIC EFFECT .3. ROTAMERIC PREFERENCES ABOUT THE EXOCYCLIC C2-X BOND IN EQUATORIAL AND AXIAL 2-METHOXYHYDROPYRANS AND 2-METHYLAMINO-TETRAHYDROPYRANS

被引：29

作者：

BOOTH, H

DIXON, JM

KHEDHAIR, KA

READSHAW, SA

机构：

[1] Department of Chemistry, University of Nottingham, Nottingham

来源：

TETRAHEDRON | 1990年 / 46卷 / 05期

关键词：

D O I：

10.1016/S0040-4020(01)81971-2

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Values of 3 J(CC), 3J(CH), 4J(CH) and 3J(HH), supported by n.O.enhancements, in nmr spectra of 2-methoxy- and 2-methyl-amino-tetrahydropyrans, point to a very strong preference for rotamers in which an exo-cyclic heteroatom lone pair is antiperiplanar to the endo-cyclic C2-O bond ("exo-anomeric effect"). © 1990.

引用

页码：1625 / 1652

页数：28

共 53 条

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