Zobrazeno 1 - 4
of 4
pro vyhledávání: '"D. G. F. R. Kostermans"'
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 70:1085-1088
The infrared spectrum of andrographolide shows the presence of a five-membered unsaturated lactone-ring and a terminal methylene group in the molecule. On catalytic hydrogenation more than four atoms of hydrogen are taken up. A new diacetyl-anhydro-a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b979e367862f750e5eced289f7b6af7
https://doi.org/10.1002/recl.19510701208
https://doi.org/10.1002/recl.19510701208
Autor:
D. G. F. R. Kostermans
Publikováno v:
Recueil des Travaux Chimiques des Pays-Bas. 70:79-82
Kawain, one of the pyronones occurring in the kawa kawa-plant (Piper methysticum), has been synthesised. The melting point of the synthetic substance is not identical with the melting point of kawain given by Borsche. Probably this is due to the fact
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a352bca0351fd0ca8eb9b4152be3fe56
https://doi.org/10.1002/recl.19510700113
https://doi.org/10.1002/recl.19510700113
Über die Konstitutions-Spezifität des Hetero-auxins. 16. Mitteilung über pflanzliche Wachstumsstoffe
Autor:
D. G. F. R. Kostermans, Fritz Kögl
Publikováno v:
Hoppe-Seyler´s Zeitschrift für physiologische Chemie. 235:201-216
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36d83ba2715cf2af6006e738e37cb0b4
https://doi.org/10.1515/bchm2.1935.235.5-6.201
https://doi.org/10.1515/bchm2.1935.235.5-6.201
Autor:
Fritz Kögl, D. G. F. R. Kostermans
Publikováno v:
Hoppe-Seyler´s Zeitschrift für physiologische Chemie. 228:113-121
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::582ad65f632862c73672ab2e9c05b86a
https://doi.org/10.1515/bchm2.1934.228.3-6.113
https://doi.org/10.1515/bchm2.1934.228.3-6.113