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5 results on '"Cotarnine Chloride"'

1. Transformations of cotarnine chloride by the action of silver acetylides and alkynes.

Author

Voskressensky, Leonid, Titov, Alexander, Samavati, Reza, Borisova, Tatiana, Sorokina, Elena, and Varlamov, Alexey

Subjects
*CHLORINE compounds, *ACETONITRILE synthesis, *KETONES, *CHEMICAL reactions, *PHENYL compounds
Abstract

[Figure not available: see fulltext.] Three-component reactions of cotarnine chloride with silver acetylides and methyl propiolate or ethynyl methyl ketone in acetonitrile, as well as two-component reactions of 5-phenylethynyl-substituted tetrahydro[1,3]dioxolo[4,5- g]isoquinoline with alkynes in various solvents were studied. Performing them in 2,2,2-trifluoroethanol as the solvent, 10-phenylethynyl-substituted tetrahydro[1,3]dioxolo[4,5- i]-[3]benzazocines were obtained in good yields. [ABSTRACT FROM AUTHOR]

Published
2016
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2. One-pot synthesis of cotarnine 1-alkynyl derivatives.

Author

Ukhin, L., Shepelenko, E., Belousova, L., Popova, O., and Alekseenko, D.

Subjects
*ACETYLENE, *CHEMICAL synthesis, *ACETONITRILE, *CATALYTIC activity, *MORPHOLINE
Abstract

Cotarnine chloride reacts with terminal acetylenes with short-time heating in acetonitrile in the presence of the catalytic system CuI-morpholine to form cotarnine 1-alkynyl derivatives. [ABSTRACT FROM AUTHOR]

Published
2016
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3. A Concise Approach Toward Tetrazolyl-Substituted Benzazocines via a Novel Isocyanide-Based Multicomponent Reaction

Author

Tatiana N. Borisova, Leonid G. Voskressensky, Roman S. Borisov, Anatoly I. Polyakov, and Alexey V. Varlamov

Subjects
Cotarnine Chloride, chemistry.chemical_compound, Cascade reaction, Chemistry, Product (mathematics), Isocyanide, Organic Chemistry, Combinatorial chemistry
Abstract

The synthesis of pharmacologically relevant isoquinoline-tetrazoles and benzazocine-tetrazoles via sequential azido-Ugi and alkyne-induced ring-expansion reactions starting from cotarnine chloride are reported. A one-pot, multicomponent reaction protocol toward the ring-expanded product is also described.

Published
2014
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4. Fluorometric analysis of cotarnine chloride

Author

Yoji Ichimura

Subjects
Cotarnine Chloride, Chromatography, Chemistry, Fluorometric Analysis, Analytical Chemistry
Abstract

著者は第3報で塩化コタルニンが緑白色の螢光を発する事実を報告したが,塩化コタルニンの水,およびアルコール溶液,ロ紙上の螢光スペクトルを測定したところ,水溶液は500～505mμ,アルコール溶液は530～535mμに,またアルカリ性水溶液は480mμ,アルカリ性アルコール溶液は470～475mμに螢光エネルギー最大強度を示し,螢光相対強度とpHの関係はpH11.5位より急激に強度を増し,pH12.8で安定し,溶媒はアルコールが最大螢光強度を示した.また螢光相対強度と濃度はアルコール溶液においては0.1～1.0γ/ccの間で直線関係が成立することを認めた.ゆえに発螢光条件を一定にすれば,塩化コタルニンの微量定量法の一つとして,螢光分析が可能であると認める.ロ紙上螢光スペクトルは480mμに最大エネルギー強度を有するゆえ,ロ紙自身の螢光を分離することにより,ロ紙上螢光定量も可能である.

Published
1959
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