BIOTIN MODEL STUDIES - COORDINATION OF MAGNESIUM(II) ION TO 1-(METHOXYCARBONYL)-2-IMIDAZOLIDINONES IN ACETONITRILE

被引：9

作者：

KONDO, H

HORIGUCHI, D

IKEDA, S

SUNAMOTO, J

TSUJII, K

机构：

[1] NAGASAKI UNIV,FAC ENGN,DEPT IND CHEM,NAGASAKI 852,JAPAN

[2] KAO SOAP CO LTD,TOCHIGI RES LABS,TOCHIGI 32134,JAPAN

来源：

JOURNAL OF ORGANIC CHEMISTRY | 1979年 / 44卷 / 24期

关键词：

D O I：

10.1021/jo01338a037

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Several l-(methoxycarbonyl)-2-imidazolidinones and their analogues have been synthesized as models for 1-carboxybiotin. In their 13CNMR spectra both carbonyl carbon signals shifted downfield as much as 2-5 ppm in the presence of magnesium(II) ion in acetonitrile. This has been interpreted in terms of the magnesium(II) coordination to the acylurea moiety. Formation of the magnesium(II) complex with (methoxycarbonyl)-2- imidazolidinones in solution was also revealed by IR spectroscopic studies, in which significant low-frequency shifts of carbonyl stretching vibration bands were observed. © 1979, American Chemical Society. All rights reserved.

引用

页码：4430 / 4435

页数：6

共 28 条

[1] STRUCTURE OF BIS-P-BROMOANILIDE OF CARBON DIOXIDE BIOTIN [J].