Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Richard H. F. Manske"'
Autor:
Richard H. F. Manske, Marshall Kulka
Publikováno v:
Organic Reactions
Konigs first synthesized quinoline in 1879 by passing allylaniline over heated litharge. Shortly after he prepared quinoline by heating the condensation product of aniline and acrolein, thus anticipating the classical Skraup synthesis. This synthesis
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57d51e4ce612605926e9fe1124114063
https://doi.org/10.1002/0471264180.or007.02
https://doi.org/10.1002/0471264180.or007.02
Autor:
Léo Marion, Richard H. F. Manske
Publikováno v:
Canadian journal of research. 24
The base obtained by hydrolysis of the chief alkaloid present in Delphinium Brownii Rydb. is shown to be identical with lycoctonine by comparison with an authentic sample of the latter. The perchlorate, picrate, and methiodide of lycoctonine from bot
Autor:
Richard H. F. Manske
Publikováno v:
Canadian journal of research. 24
Only protopine and d-stylopine have been isolated in amount sufficient for identification from Corydalis cornuta. Though closely related taxonomically to C. sibirica and C. ochotensis only the presence of acetyl-ornithine confirms this similarity. It
Autor:
Russell Rodrigo, Donald W. Hughes, David B. MacLean, Richard H. F. Manske, John Saunders, Herbert L. Holland
Publikováno v:
Canadian Journal of Chemistry. 56:383-386
Re-investigation of the alkaloids of Corydalissolida yielded two further bases, ochotensine and solidaline. Spectral analysis has shown the latter to be representative of a new class of protoberberine-related isoquinoline alkaloids.
Publikováno v:
Canadian Journal of Chemistry. 55:916-924
3,4-Methylenedioxyphthalide-α-carboxylic acid has been synthesized in four steps from piperonal. From it and phenylethylamines ten phthalideisoquinoline and spirobenzylisoquinoline alkaloids have been synthesized.
Autor:
Richard H. F. Manske, Marshall Kulka
Publikováno v:
Canadian Journal of Research. :443-452
1-, 2-, 3-, and 4-Acetylcarbazoles were converted to the corresponding carbazolylacetamides by the Willgerodt reaction. These were dehydrated with phosphorus oxychloride and the resulting 1-, 2-, 3-, and 4-cyanomethylcarbazoles reduced catalytically
Publikováno v:
Canadian Journal of Chemistry. 50:862-865
The structures of dehydrocancentrine-A and -B are elucidated by a combination of physical and chemical methods.
Publikováno v:
Canadian Journal of Chemistry. 50:1819-1824
The total synthesis of (±) ochrobirine is described.
Publikováno v:
Tetrahedron Letters. 7:985-988
Publikováno v:
Canadian Journal of Chemistry. 48:3673-3678
Two new tetrahydroprotoberberine alkaloids are reported, one from Corydalisthalictrifolia and the other from Corydalistuberosa. The former is apparently identical with a previously described synthetic compound. The latter is a des-methyl derivative o