CONCAVE REAGENTS

被引：8

作者：

LUNING, U

BAUMSTARK, R

WANGNICK, C

MULLER, M

SCHYJA, W

GERST, M

GELBERT, M

机构：

[1] Chemisches Laboratorium der Universität Freiburg, D-7800, Freiburg

来源：

PURE AND APPLIED CHEMISTRY | 1993年 / 65卷 / 03期

关键词：

D O I：

10.1351/pac199365030527

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Concave Reagents are molecules in which standard reagents of organic chemistry are incorporated into concave structures. Via combination of acidic or basic centers with bimacrocyclic systems, Concave Pyridines 1 and 2, Concave 1,10-Phenanthrolines 3 and 4 and Concave Benzoic Acids 5 could be synthesized. The influence of the concave structure on the selectivities of these new reagents could be shown in protonations of nitronate ions and in base-catalyzed additions of alcohols to diphenylketene. Improvements towards enantioselectivity and towards easier recovery (polymer-bound Concave Pyridines) are presented, too.

引用

页码：527 / 532

页数：6

共 15 条

[1]

CONNOLLY ML, QCPE PROGRAM 429

[2] CONCAVE REAGENTS .4. PROTONATION OF NITRONATE ANIONS VIA CONCAVE PYRIDINES - STEREOSELECTIVE C-PROTONATION VERSUS NEF REACTION [J].