APPLICATION OF NMR IN THE INVESTIGATION OF DYNAMIC TAUTOMERISM OF 4(3H)-QUINAZOLINONE SYSTEM

Tautomerism of 4(3H)-quinazolinone system with [(2-hydroxyphenyl)methylene]-2-(4oxoquinazolin-3(4H)-yl)acetohydrazide and N’-[(1E)-(4-hydroxy-3-methoxyphenyl)methylene]-2-(4-oxoquinazolin-3(4H)-yl)acetohydrazide as two representative compounds was investigated on the basis of 1H NMR method at coales...

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Published inASEAN journal on science & technology for development Vol. 25; no. 2; pp. 445 - 455
Main Authors My, Pham Thi Thanh, Kinh, Chu Dinh, Thuy, Thanh Thi Thu, Vinh, Nguyen Ngoc, Chi, Nguyen Thi Phuong
Format Journal Article
LanguageEnglish
Published Universiti Brunei Darussalam 22.11.2017
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Summary:Tautomerism of 4(3H)-quinazolinone system with [(2-hydroxyphenyl)methylene]-2-(4oxoquinazolin-3(4H)-yl)acetohydrazide and N’-[(1E)-(4-hydroxy-3-methoxyphenyl)methylene]-2-(4-oxoquinazolin-3(4H)-yl)acetohydrazide as two representative compounds was investigated on the basis of 1H NMR method at coalescence with the help of line formprogramme. The dynamic parameters such as k, Ea, DG*, DH*, DS* were fully calculated with high reliability.
ISSN:0217-5460
2224-9028
DOI:10.29037/ajstd.275