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Unequivocal total assignment of13C and1H NMR spectra of some pyrido[1,2-a]pyrimidine derivatives by 2D-NMR

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Title Unequivocal total assignment of13C and1H NMR spectra of some pyrido[1,2-a]pyrimidine derivatives by 2D-NMR
 
Creator Suri, Krishan A.
Suri, Om P.
Amina, Musarat
Wakhloo, Basant P.
Satti, Naresh K.
 
Subject Chemical Sciences
 
Description We report the total assignments of the 13C and 1H NMR spectra of some 4-methyl-2-oxo-(2H)-pyrido[1,2-a]pyrimidine and 2-methyl-4-oxo-(4H)-pyrido[1,2-a]pyrimidine derivatives. The products were characterized by
1H and 13C NMR and reported data for similar compounds.
No comparative data for the two sets of isomeric
compounds with respect to 13C and 1H NMR have been
reported to date. We made some detailed studies of the
2D NMR spectra of these compounds and observed that
assignments made for non-protonated carbon atoms by
us and those reported in the literature for similar compounds need correction. The revised assignments were
made on the basis of heteronuclear single quantum
correlation (HSQC) and heteronuclear multiple bond
correlation (HMBC) techniques. Copyright  2003 John
Wiley & Sons, Ltd.
 
Date 2003
 
Type Article
PeerReviewed
 
Format application/pdf
 
Identifier http://iiim.csircentral.net/366/1/10.1002mrc.1240.pdf
Suri, Krishan A. and Suri, Om P. and Amina, Musarat and Wakhloo, Basant P. and Satti, Naresh K. (2003) Unequivocal total assignment of13C and1H NMR spectra of some pyrido[1,2-a]pyrimidine derivatives by 2D-NMR. Magnetic Resonance in Chemistry, 41 (9). pp. 747-749. ISSN 0749-1581
 
Relation http://dx.doi.org/10.1002/mrc.1240
http://iiim.csircentral.net/366/