1H and 13C NMR chemical shifts of methyl-substituted benz[a]anthracenes
β Scribed by D.W. Jones; T.T. Mokoena
- Publisher
- Elsevier Science
- Year
- 1982
- Tongue
- English
- Weight
- 717 KB
- Volume
- 38
- Category
- Article
- ISSN
- 1386-1425
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π SIMILAR VOLUMES
The complete assignment of the 1H and 13C NMR spectra of eight thienyl-substituted chromenes was achieved by the concerted application of homonuclear (gs-COSY), 1H-detected heteronuclear one-bond (gs-HMQC) and long-range (gs-HMBC) gradientselected correlation experiments.
## Abstract ^1^H, ^13^C and ^15^N NMR chemical shifts of 10 substituted pyrazolo[1,5β__a__]pyrimidines were assigned based on DQF ^1^H, ^1^H COSY, PFG ^1^H, ^13^C HMQC and PFG ^1^H,X (X = ^13^C and ^15^N) HMBC experiments and on literature data. Copyright Β© 2002 John Wiley & Sons, Ltd.
## Abstract The ^13^C NMR spectra of thiacyclopentane (thiolane) and its monoβ and dimethyl derivatives at positions other than the heteroatom are reported. The ^13^C shieldings are found to be consistent with a description of these compounds in terms of equilibria between halfβchair conformers. An