SYNTHESIS AND PROPERTIES OF COMPOUNDS RELATED TO 1-TERT-BUTYLACETYLENE-2-PHOSPHONIC ACID AND 1-TERT-BUTYLETHANE-1,2,2-TRIPHOSPHONIC ACID - STERICALLY OVERCROWDED PHOSPHORUS-COMPOUNDS .1.

被引：11

作者：

HAGELE, G

GOUDETSIDIS, S

WILKE, E

SEEGA, J

BLUM, H

MURRAY, M

机构：

[1] HENKEL KGAA,W-4000 DUSSELDORF,GERMANY

[2] UNIV BRISTOL,SCH CHEM,BRISTOL BS8 1TS,AVON,ENGLAND

来源：

PHOSPHORUS SULFUR AND SILICON AND THE RELATED ELEMENTS | 1990年 / 48卷 / 1-4期

关键词：

intramolecular rotation; NMR; Phosphonic acids; stereochemistry;

D O I：

10.1080/10426509008045889

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

l-t-Butylacetylene-2-phosphonic acid diethyl and di-iso-propyl esters, 6a, 6b were synthesized via the NiCl2 promoted MICHAELIS-ARBUZOV-type reactions. Ethyl, iso-propyl and methyl esters 7a-7c of l-t-butylethane-l, 2, 2-triphosphonic acid were obtained by three routes including the "anomalous MICHAELIS-BECKER-type" reaction. In addition the parent triphosphonic acid 7d and an anilinium salt 7e were synthesized. These overcrowded molecules exist at ambient temperature in two different rotameric forms. © 1990, Taylor & Francis Group. All rights reserved.

引用

页码：131 / 140

页数：10

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