23117-57-9Relevant academic research and scientific papers
Use of Iron (III) Chloride in the Efficient Preparation of the Alkaloid Kreysigine by Oxidative Coupling
Herbert, Richard B.,Kattah, Abdullah E.,Murtagh, Amanda J.,Sheldrake, Peter W.
, p. 5649 - 5650 (1995)
Reaction of the isoquinoline (1) with iron (III) chloride in dichloromethane followed by reductive treatment with methanol gives kreysigine (4) in 71percent yield; (2) gives (4) in lower yield as does treatment with water instead of methanol; (8) is the p
N-OXIDES OF HOMOAPORPHINE ALKALOIDS FROM MERENDERA RADDEANA
Yusupov, M. K.,Chommadov, B. Ch.,Aslanov, Kh. A.
, p. 75 - 79 (2007/10/02)
The alkaloid complex of the leaves, stems, seeds, and seed pods of Merendera raddeana Rgl. (family Liliaceae) has been investigated.A number of known tropolone alkaloids and their photochemical isomers have been isolated together with the homoaporphine bases merenderine, kreysigenine, and O-methylkreysigenine and their N-oxides, which have not been described in the literature.One of them (merenderine N-oxide) has been characterized by its physical constants and has been investigated by IR, PMR, and mass-spectral methods.By a study of the PMR spectrum of the fraction of neutral alkaloids from the leaves of the plant it has been established that it consists mainly of a mixture of equal amounts of colchicine and cornigerine.
Thallium in Organic Synthesis. 59. Alkaloid Synthesis via Intramolecular Nonphenolic Oxidative Coupling. Preparation of (+/-)-Ocoteine, (+/-)-Acetoxyocoxylonine, (+/-)-3-Methoxy-N-acetylnornantenine, (+/-)-Neolitsine, (+/-)-Kreysigine, (+/-)-O-Methylkreys
Taylor, Edward C.,Andrade, Juan G.,Rall, Gerhardus J.H.,McKillop, Alexander
, p. 6513 - 6519 (2007/10/02)
Reaction of 1,2-bis(3,4-dimethoxyphenyl)ethane, 1,3-bis(3,4-dimethoxyphenyl)propane, diveratryl ether, N-methyl-N-veratrylveratramide, and N-methylbis(3,4-dimethoxybenzyl)amine with thallium(III) trifluoroacetate (TTFA) and BF3.Et2O in CH2Cl2/TFA resulted
