The 15N NMR study of silatranes
โ Scribed by Zhu Jin-Chang; Sun Xian-Yu; Wu Hua-Ju; Jiang Li-Jin; Chen Bang-Qin; Wu Guan-Li
- Book ID
- 112058627
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- English
- Weight
- 223 KB
- Volume
- 4
- Category
- Article
- ISSN
- 0256-7660
No coin nor oath required. For personal study only.
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## Abstract A natural abundance ^15^N NMR study was carried out on a series of 1โ and 2โmonoโ and 1,5โ and 2,5โdisubstituted tetrazoles in different media. An erroneous assignment given in the literature for 2,5โdisubstituted tetrazoles was corrected using MNDO molecular orbital calculations and th
15N NMR chemical shifts of 40 tertiary and quaternary isoquinoline alkaloids of six constitutional types are reported. The selected compounds belong to the classes of benzo[c]phenanthridine, protoberberine, benzylisoquinoline, aporphine, pavinane, and b-carboline-proaporphine alkaloids. The 15N chem