Zobrazeno 1 - 10
of 28
pro vyhledávání: '"György Göndös"'
Autor:
György Göndös, György Dombi
Publikováno v:
Monatshefte f�r Chemie / Chemical Monthly. 133:1279-1283
The introduction of a tert-butyl group at position 2 of the A ring of estrogens leads to enhanced antioxidant effects. Therefore, a generally applicable and convenient method was developed using FeCl3–graphite or anhydrous FeCl3 as catalysts in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0938f075f7d5d6faecaa47c4d379bd1f
https://doi.org/10.1007/s007060200106
https://doi.org/10.1007/s007060200106
Autor:
György Göndös, Peter Forgo
Publikováno v:
Monatshefte für Chemie/Chemical Monthly. 133:101-106
Inclusion complexes of β-cyclodextrin with two steroid derivatives, progesterone (pregn-4-ene-3,20-dione) and hydrocortisone (11,17,21-trihydroxy-pregn-4-ene-3,20-dione), were studied in the liquid state by NMR spectroscopy. The complex formation pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::264d1a8762e58624d1c10b63bbcd7503
https://doi.org/10.1007/s007060270011
https://doi.org/10.1007/s007060270011
Publikováno v:
Monatshefte für Chemie/Chemical Monthly. 131:1055-1059
The synthesis of a new chiral boroxazolidine was achieved which was used to control the stereochemistry of the borane reduction of the 20-keto group of steroids. The otherwise hardly accessible 20α-(20S)-alcohol can thus be prepared in a yield of 91
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::72b0831fa6291b7f5537dd0ba8ca7279
https://doi.org/10.1007/s007060070037
https://doi.org/10.1007/s007060070037
Publikováno v:
Steroids. 63:375-382
From the condensation reaction of O -methylbutyrolactim ( 2 ), O -methylvalerolactim ( 3 ), O -methylcaprolactim ( 4 ) and O -methyl-4- t -butylcaprolactim ( 5 ) with ethyl 6,7-dimethoxy-α-[1-(1,2,3,4-tetrahydro-isoquinolyl)]acetate ( 1 ), 8,13-diaz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6a34835b3877a03b6c2e5fb3e11ca99e
https://doi.org/10.1016/s0039-128x(98)00011-7
https://doi.org/10.1016/s0039-128x(98)00011-7
Publikováno v:
Monatshefte f�r Chemie Chemical Monthly. 127:1167-1171
In contrast to their aromatic analogues, the corresponding saturated diamides5–9 are formed exclusively when hexahydro-3,1,4-benzoxazinones (3,4) are reacted with amines. The cyclodehydration reaction of the diamides5–9 cannot be carried out at a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8bed658ac29b348cc60dca191bc2e411
https://doi.org/10.1007/bf00844692
https://doi.org/10.1007/bf00844692
Autor:
Kalevi Pihlaja, György Göndös, Gábor Bernáth, Vladimir V. Ovcharenko, Lajos Gera, Marja Himottu
Publikováno v:
Rapid Communications in Mass Spectrometry. 10:214-219
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::827108b1f4367da809ed6f2431d9f0e3
https://doi.org/10.1002/(sici)1097-0231(19960131)10:2<214::aid-rcm465>3.0.co
https://doi.org/10.1002/(sici)1097-0231(19960131)10:2<214::aid-rcm465>3.0.co
Publikováno v:
Rapid Communications in Mass Spectrometry. 7:1121-1125
Mass spectral fragmentations of two cyclopentane, four cyclohexane/ene and four norbornane/ene s-amino acids were studied under electron ionization by low-resolution, high-resolution, metastable ion analysis and collision-induced dissociation techniq
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::16aed024e92e660df62fb4b031aa09f7
https://doi.org/10.1002/rcm.1290071213
https://doi.org/10.1002/rcm.1290071213
Publikováno v:
Helvetica Chimica Acta. 73:635-639
The hydrogenations of methyl 2-oxoeyclopentanecarboxylate (1), ethyl 2-oxocyelohexanecarboxylate (3), and 2-methylcyclohexanone (5) on unmodified Raney-Ni catalyst lead predominately to the formation of the cis-hydroxy diastereoisomers of 2, 4, and 6
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::728083e3118a45e545b201a1ee034792
https://doi.org/10.1002/hlca.19900730312
https://doi.org/10.1002/hlca.19900730312
Publikováno v:
Journal of Organometallic Chemistry. 384:385-395
Substituted cinnamic acids containing a prochiral CC bond, and their Li I , K I , Ni II and Ca II salts, were prepared and their surface complexes on Ni were studied over a Raney-Ni catalyst modified with tartaric acid. The hydrogenation product o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0836882ec364dade2c255663565833d9
https://doi.org/10.1016/0022-328x(90)87130-6
https://doi.org/10.1016/0022-328x(90)87130-6
Publikováno v:
Liebigs Annalen der Chemie. 1991:591-593
In this paper we describe a new approach to cis- and trans-2-aminocyclohexanecarboxamides and their N-substituted derivatives. Which proceeds much faster and in higher yields than the methods described in the literature and usually employed in peptid
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::194da6aec430789b94d0ea3b616a459a
https://doi.org/10.1002/jlac.1991199101107
https://doi.org/10.1002/jlac.1991199101107