Unequivocal total assignment of13C and1H NMR spectra of some pyrido[1,2-a]pyrimidine derivatives by 2D-NMR
IR@CSIR-IIIM
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Title |
Unequivocal total assignment of13C and1H NMR spectra of some pyrido[1,2-a]pyrimidine derivatives by 2D-NMR
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Creator |
Suri, Krishan A.
Suri, Om P. Amina, Musarat Wakhloo, Basant P. Satti, Naresh K. |
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Subject |
Chemical Sciences
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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. |
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Date |
2003
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Type |
Article
PeerReviewed |
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Format |
application/pdf
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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 |
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Relation |
http://dx.doi.org/10.1002/mrc.1240
http://iiim.csircentral.net/366/ |
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