Zobrazeno 1 - 10
of 69
pro vyhledávání: '"R. Jacquesy"'
Autor:
H.L. Ung, R. Jacquesy
Publikováno v:
Tetrahedron. 32:1375-1378
Resume Dans HF-SbF5 a −60°C l'androstadiene-4,6 dione-3,17 est diprotonee sur les deux atomes d'oxygene, et peut subir une troisieme protonation en position 6. L'ion carbenium forme se deplace le long du squelette carbone et, apres avoir induit un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2178e57f90b58a42facc5ef5c242b02
https://doi.org/10.1016/0040-4020(76)85013-2
https://doi.org/10.1016/0040-4020(76)85013-2
Publikováno v:
Soil Biology and Biochemistry. 13:461-468
Because lipids are important to the properties of soils and the composition of sedimentary organic matter, the rates of decomposition of selected lipids in soils were determined. The rates of decomposition of total lipid extracts from plant materials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10d722c3414c8b267a93a9ea22989ad2
https://doi.org/10.1016/0038-0717(81)90035-3
https://doi.org/10.1016/0038-0717(81)90035-3
Publikováno v:
Soil Biology and Biochemistry. 13:335-342
The decomposition of pure hydrocarbons in soils depends essentially on the intrinsic biological activity of the soils. Seasonal variations were observed, but other environmental factors, such as acidity, were more important. In non-acid soils, the st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76fd3163948a63f0b1713e097f1e2671
https://doi.org/10.1016/0038-0717(81)90073-0
https://doi.org/10.1016/0038-0717(81)90073-0
Publikováno v:
Tetrahedron. 31:2237-2242
Resume L'estrone, ainsi que divers autres estranes insatures, est reduite dans le melange HF-SbF5 par l'hydrogene sous pression. Le produit majoritaire de la reaction est un anthrasteroide dont la structure, et en particulier la configuration des car
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8433f5d249890d819c00172dd2bd8ba
https://doi.org/10.1016/0040-4020(75)80221-3
https://doi.org/10.1016/0040-4020(75)80221-3
Publikováno v:
Journal of Soil Science. 40:685-694
SUMMARY Lipids generally accumulate in surface horizons of soils deficient in clay minerals. Samples from a podzol (A1 horizon–no clay) were incubated with a supply of hetero- or homo-ionic (Mg)-bentonite for 4 months at 28 °C. A significant decre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::adef5e09d649169bf2db15941677e69f
https://doi.org/10.1111/j.1365-2389.1989.tb01309.x
https://doi.org/10.1111/j.1365-2389.1989.tb01309.x
Publikováno v:
Tetrahedron Letters. 15:2199-2202
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::97c2684ceeb4960c2eb1ef8bf5122a5a
https://doi.org/10.1016/s0040-4039(01)93175-2
https://doi.org/10.1016/s0040-4039(01)93175-2
Reactions en milieux hyperacides XI- synthese de cetones polycycliques par piegeage d'ions carbenium
Publikováno v:
Tetrahedron Letters. 15:4119-4122
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb10fa63993508892b337d39541d676f
https://doi.org/10.1016/s0040-4039(01)92099-4
https://doi.org/10.1016/s0040-4039(01)92099-4
Autor:
R. Jacquesy, H.L. Ung
Publikováno v:
Tetrahedron. 33:2543-2549
Resume Dans le melange hyperacide HP-SbF5, I'androstadiene-1,4 dione-3,17 conduit dans une premiere etape aux methyl-1 estrone et hydroxy-1 methyl-4 estratriene-1,3,5(10) one-3,17 attendus. La methyl-1 estrone s'isomerise in situ en methyl-1 (8α,14
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4ae841587d7d263c8bdaf5be0bc7a3e9
https://doi.org/10.1016/0040-4020(77)80078-1
https://doi.org/10.1016/0040-4020(77)80078-1
Publikováno v:
Tetrahedron Letters. 15:4433-4436
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc54d0de6831ee010ab70942b5e1e2ae
https://doi.org/10.1016/s0040-4039(01)92183-5
https://doi.org/10.1016/s0040-4039(01)92183-5
Publikováno v:
Tetrahedron Letters. 13:4739-4742
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::07abb35987ff1dc16a32909b8c561f54
https://doi.org/10.1016/s0040-4039(01)94416-8
https://doi.org/10.1016/s0040-4039(01)94416-8