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THE ALKALOIDS OF FUMARIACEOUS PLANTS: XXIV.CORYDALIS OCHOTENSISTURCZ. |
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Canadian Journal of Research,
Volume 18b,
Issue 3,
1940,
Page 75-79
Richard H. F. Manske,
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摘要:
The alkaloids ofCorydalis ochotensisconsist of four known bases, namely, protopine, cryptocavine, ochotensine, and aurotensine, together with two new ones, namely, ochotensimine (F48) and alkaloid F49. Ochotensimine is the O-methyl ether of ochotensine. It has not been obtained crystalline, but it has been characterized as the methiodide and the derived dihydro-methine base. In addition to acetyl-ornithine, the isolation of which has already been recorded, fumaric acid and maltol were also found.
ISSN:1923-4287
DOI:10.1139/cjr40b-009
出版商:NRC Research Press
年代:1940
数据来源: NRC
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THE ALKALOIDS OF FUMARIACEOUS PLANTS: XXV.CORYDALIS PALLIDAPERS. |
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Canadian Journal of Research,
Volume 18b,
Issue 3,
1940,
Page 80-83
Richard H. F. Manske,
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摘要:
In addition to corypalline, the isolation of which has already been recorded,Corydalis pallidaPers. has yielded five known and two new alkaloids. The known bases are,—protopine,d- anddl-tetrahydro-palmatine, capaurine, and capauridine. The new alkaloids are capaurimine (F50), C20H23O5N (phenolic; two hydroxyl and three methoxyl groups), and alkaloid F51, C20H23O4N (one hydroxyl and three methoxyl groups). Capaurimine on methylation yields capaurine O-methyl ether, thedl- form of which is identical with capauridine O-methyl ether. Alkaloid F51 on methylation yieldsdl-tetrahydro-palmatine but it is not identical with the knowndl-bases of the same formula.
ISSN:1923-4287
DOI:10.1139/cjr40b-010
出版商:NRC Research Press
年代:1940
数据来源: NRC
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3. |
THE HETEROGENEOUS CATALYTIC DECOMPOSITION OF HYDROGEN PEROXIDE IN HEAVY WATER |
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Canadian Journal of Research,
Volume 18b,
Issue 3,
1940,
Page 84-89
P. A. Giguère,
O. Maass,
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摘要:
The catalytic decomposition of hydrogen peroxide dissolved in heavy water, both on the surface of glass in alkaline medium and on metallic gold, was measured at 35 °C. The results, compared with those obtained under similar conditions for hydrogen peroxide in ordinary water, indicate that deuterium peroxide (D2O2) is much more stable than ordinary hydrogen peroxide towards such catalysts. The experimental results in both cases are of interest chiefly for comparison, and further investigations will be necessary before any sound conclusion can be drawn regarding the mechanism of the reactions involved.
ISSN:1923-4287
DOI:10.1139/cjr40b-011
出版商:NRC Research Press
年代:1940
数据来源: NRC
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4. |
DERIVATIVES OF SUBSTITUTED SUCCINIC ACIDS: IV. THE ACTION OF ALKALINE SODIUM HYPOBROMITE ON SOME α-ALKYL-α′-ARYLSUCCINAMIDES |
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Canadian Journal of Research,
Volume 18b,
Issue 3,
1940,
Page 90-95
John A. McRae,
Norah A. McGinnis,
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摘要:
The action of alkaline sodium hypobromite on α-methyl-α′-phenylsuccinamide produces methylphenyldihydrouracil. With the same reagent α-n-hexyl-α′-phenylsuccinamide gives α-n-hexyl-β-ureido-β-phenylpropionic acid. Hence these amides of the α-alkyl-α′-arylsuccinamide type in this reaction resemble the monoalkyl- and monoarylsuccinamides and not the αα′-diarylsuccinamides.
ISSN:1923-4287
DOI:10.1139/cjr40b-012
出版商:NRC Research Press
年代:1940
数据来源: NRC
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