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C-13 NMR-SPECTRA AND ENOL-ENOL TAUTOMERISM IN CRYSTALLINE KETO-ENOLS

被引：12
作者：
KOLTSOV, AI
ELKIN, AA
ZHEGLOVA, DK
机构：
[1] UNIV SOFIA,DEPT ORGAN CHEM,BU-1126 SOFIA,BULGARIA
[2] ACAD SCI USSR,INST HIGH MOLEC CPDS,LENINGRAD 199164,USSR
来源：
JOURNAL OF MOLECULAR STRUCTURE | 1990年 / 221卷
关键词：
D O I：
10.1016/0022-2860(90)80415-G
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The tautomeric equilibrium in crystals of five β-diketones has been studied by 13C NMR spectroscopy using "magic angle" spinning techniques. The results are compared with literature data for the corresponding 10% solutions. The difference between chelate enol-enol equilibria in crystalline and dissolved keto-enols was found to be small in some cases and significant for systems containing an additional proton donating group able to form an intermolecular hydrogen bond. © 1990.
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页码：309 / 313
页数：5
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