%0 Journal Article
%A Zhang Benli
%A Zhuo Jincong
%A Gui Mingde
%A Gao Zhenheng
%T Study on Intramolecular Hydrogen-Bonding and Keto-Enol Tautomerism of Some Asymmetrical β-Diketones by1H NMR
%D 1990
%R
%J Chemical Journal of Chinese Universities
%P 376-379
%V 11
%N 4
%X The intramolecular hydrogen-bonding and keto-enol tautomerism of a series of 1-aryl-3-tolyl-1,3-propanediones were studied by 1H NMR. Both δOHand lgK(K=[enol]/[keto]) can be correlated with substituent constants satisfactorily. +1 and +Rsubstituents enhance the hydrogenbond-ing and decrease the content of enol form.
%U http://www.cjcu.jlu.edu.cn/EN/abstract/article_11252.shtml