15N and 17O NMR Spectral Parameters of M-Nitropyrazoles
β Scribed by Bogdan I. Ugrak; Valentin S. Bogdanov; Svyatoslav A. Shevelev; Igor L. Dalinger
- Book ID
- 111729482
- Publisher
- Royal Society of Chemistry
- Year
- 1993
- Tongue
- English
- Weight
- 287 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0959-9436
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π SIMILAR VOLUMES
Numerous areneselenenamides derived from ammonia, primary and secondary amines and two N,N-bis(ary1-se1eno)alkylamines have been studied. The selenenamides bearing an electron-withdrawing substituent on the aromatic moiety are stable. The 'H, 13C and 77Se chemical shifts and some coupling constants
## Abstract The 5βmethyl(^15^N~2~)[__O__^2^,__O__^4^β^17^O~2~]uridine (= (^15^N~2~)[__O__^2^,__O__^4^β^17^O ~2~]ribosylthymine; 15) was synthesized and analyzed by ^15^Nβ and ^17^OβNMR spectroscopy. (^15^N~2~)Urea was condensed with 2,3βdibromoβ2βmethylpropanoyl chloride (3) and cyclized to form (^
Carbon, nitrogen and oxygen NMR spectra of some nitro derivatives of pyrrole and imidazole have been investigated. The 13C chemical shifts of para-carbons and the 170 chemical shifts of the nitro group correlate qualitatively with the electron densities on these carbon and oxygen atoms, which in tur