𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A 13C NMR study of β-carboline alkaloids

✍ Scribed by Kazuo Koike; Yohko Sakamoto; Taichi Ohmoto

Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
228 KB
Volume
22
Category
Article
ISSN
0749-1581

No coin nor oath required. For personal study only.

✦ Synopsis

The 13C NMR spectra of p-carboline alkaloids were determined, and unambiguous assignments of the spectra were carried out from the long-range coupling constants.

📜 SIMILAR VOLUMES

13C NMR spectra of substituted carbazole
13C NMR spectra of substituted carbazoles and azacarbazoles (β-carbolines)
✍ Rosa Erra-Balsells 📂 Article 📅 1988 🏛 John Wiley and Sons 🌐 English ⚖ 315 KB

The 13C NMR spectra of a series of derivatives of carbazole and azacarbazole (norharmane or 9H-pyrido[3,4-b]indole) are reported. The dependence of 'H and 'T shieldings on molecular geometry is discussed briefly. KEY WORDS'~C NMR Dimeric 8-carbolines Azacarbazoles 9H-Pyrido[3,4-b]indoles Carbazole d

β-Carboline alkaloids 9 [1]. Total synth
β-Carboline alkaloids 9 [1]. Total synthesis of the β-carboline alkaloids arenarine A and (±)arenarine B
✍ Franz Bracher; Andreas Puzik 📂 Article 📅 2004 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 128 KB 👁 1 views

## Abstract The first total synthesis of the β‐carboline alkaloids arenarine A **(1)** and arenarine B **(2)** is described. Methanolysis of the α‐bromoketone **9** gives **1** in good yield. Alternatively **1** can be obtained from the diazoketone **11** with boron trifluoride/methanol in poor yie

1H and 13C NMR study of quaternary benzo
1H and 13C NMR study of quaternary benzo[c]phenanthridine alkaloids
✍ Radek Marek; Jaromír Toušek; Jiří Dostál; Jiří Slavík; Roger Dommisse; Vladimír 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 105 KB 👁 2 views

C and in some cases also 15 N chemical shifts of quaternary benzo[c]phenanthridine alkaloids (fagaronine, chelerythrine, chelilutine, chelirubine, nitidine, sanguilutine, sanguinarine, and sanguirubine) were systematically studied by NMR spectroscopy and ab initio calculations. The assignment of sig