Zobrazeno 1 - 10
of 23
pro vyhledávání: '"K.G. Marathe"'
Publikováno v:
Tetrahedron. 44:3015-3023
E-3 Arylideneflavanones 4 on UV irradiation using quartzware undergo auto-oxidation to 3-aroylflavones 5 . Photolysis using pyrex filter in the presence of iodoform furnishes 3-α-hydroxybenzylflavones indicating the intermediacy of the hydroperoxide
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60f93b91e6872da38c8f0b01f2c232a4
https://doi.org/10.1016/s0040-4020(88)90041-5
https://doi.org/10.1016/s0040-4020(88)90041-5
Autor:
M.T. Saindane, K.G. Marathe
Publikováno v:
Tetrahedron. 31:2821-2824
Stereochemistry of cyanomaclurin is confirmed by a stereospecific synthesis of (±) epicyanomaclurin trimethyl ether and the solvolysis of its mesylate to the former. The earlier prediction that the dihydropyran protons should have small coupling in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82718cc410529d885b52af3429535347
https://doi.org/10.1016/0040-4020(75)80297-3
https://doi.org/10.1016/0040-4020(75)80297-3
Publikováno v:
Tetrahedron. 42:1539-1546
Some reactions of 4-substituted flavans have been studied. 4-Chloro/bromo derivatives react under neutral conditions with phthalimide and acetonitrile leading to displacement or axial halogen by nitrogen with inversion. In contrast, irrespective of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab0bb2032a44ef3163f116f731d06666
https://doi.org/10.1016/s0040-4020(01)87374-9
https://doi.org/10.1016/s0040-4020(01)87374-9
Publikováno v:
Tetrahedron. 23:341-347
The chemistry and stereochemistry of flav-3-ene derivatives are discussed. Three of the four possible racemates of 4-acetoxy-3-bromoflavans are described; the fourth racemate was obtained in a mixture with another isomer. Syntheses of trans-3-hydroxy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6046b5f13617c2910fda5c2bcbd15d46
https://doi.org/10.1016/s0040-4020(01)83318-4
https://doi.org/10.1016/s0040-4020(01)83318-4
Publikováno v:
Tetrahedron. 22:1789-1795
Isoaurones (anhydrolactones of 2-hydroxy-α-benzylmandelic acids), trimethylanhydrohazeyl lactone 2a and its 5-methyl-4′-methoxy analogue (VI) are shown to be trans -stilbene derivatives and are isomerized to cis -compounds by pyridine. The stereoc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::43ca862470a655509a91cc79e67bff47
https://doi.org/10.1016/s0040-4020(01)82252-3
https://doi.org/10.1016/s0040-4020(01)82252-3
Autor:
D. D. Keane, E.M. Philbin, R. M. Simons, K.G. Marathe, J.R. Doherty, W.I. O'Sullivan, P. C. Teague
Publikováno v:
Tetrahedron. 26:2545-2554
Three of the four possible isomeric 3-hydroxy-β-chloroflavindogenide chlorohydrins have been prepared by the action of hydrogen chloride in benzene-ether on flavindogenide epoxides.1 The configurations of the chlorohydrins have been determined and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e957dee3ecb1f05d097b5300224e4a1d
https://doi.org/10.1016/s0040-4020(01)92829-7
https://doi.org/10.1016/s0040-4020(01)92829-7
Publikováno v:
Tetrahedron. 22:621-628
The NMR spectra of the 4α and β-benzoyloxyflavans have been completely analyzed, and the relative configurations deduced from coupling constant values. A simplified method of deducting relative stereochemistry of 4-substituted flavans from NMR spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d54d469a27e63167652fc8095a896efd
https://doi.org/10.1016/0040-4020(66)80031-5
https://doi.org/10.1016/0040-4020(66)80031-5
Autor:
M.T. Saindane, K.G. Marathe
Publikováno v:
Tetrahedron. 31:1011-1013
A stereospecific synthesis of (±) trimethyl cyanomaclurin has been achieved via 2′-benzyloxy-4′,5,7-trimethoxyflav-3-ene and trans-cis-4′,5,7-trimethoxy,2′,3,4-trihydroxyflavan. The conformation and stereochemistry at each step is establishe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8232ce3141e01cd96af0ed9d420eb41f
https://doi.org/10.1016/0040-4020(75)80119-0
https://doi.org/10.1016/0040-4020(75)80119-0
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.