Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Márton Kajtár"'
Autor:
Péter Sándor, Emma Kollát, Gyula Batta, Zsuzsa Majer, Miklós Hollósi, Medhen Zewdu, Katalin E. Kövér, Márton Kajtár
Publikováno v:
International Journal of Peptide and Protein Research. 36:173-181
Mono- and dithionated N-acyl amino acid and dipeptide N'-methylamides were synthesized using Lawesson's reagent and S-thioacetyl thioglycolic acid. The conformation of the thionated models was characterized by IR, 13C, and 1H NMR spectroscopy, includ
Autor:
Gyula Varadi, Claudia Zucchi, Giampaolo Giacomelli, Judit Kajtár-Miklós, Márton Kajtár, Gyula Pályi, István T. Horváth, György Gaál
Publikováno v:
Tetrahedron: Asymmetry. 6:2177-2194
( μ 2 -RC 2 R′)Co 2 (CO) 6 complexes are prepared where R ≠ R′ and one of these substituents is a chiral organic group. The structures of the 11 complexes (10 new) range from the simplest possible chiral acetylenic hydrocarbon derivative (S-3-
Publikováno v:
Journal of Liquid Chromatography. 18:941-964
It was found by chromatographic, CD and NMR methods, that the thionation of piperazine-2,5-diones [cyclo(Aaa1-Aaa2) → cyclo (Aaat 1-Aaat 2 (Aaa=-NH-CHR-CO-; Aaat=-NH-CHR-CS-)] or piperazine-2,5-onthiones [cyclo(Aaat 1-Aaa2) → cyclo (Aaat-Aaat)] a
Publikováno v:
Journal of Inclusion Phenomena and Molecular Recognition in Chemistry. 18:255-264
OrangeII (4) and γ cyclodextrin (CD) form 2 : 1 and 2 : 2 complexes. The complexes self-associate and microscopy indicates the formation of a fibroid aggregate. In the induced c.d. spectrum, the π → π* band of this complex appears at ∼500 nm i
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 286:131-148
The ring structures of selected dioxopiperazines and their sulphur-containing analogues undergo remarkable geometry changes during enolization as established by semiempirical (AM1) and non-empirical (HF/3-21G) MO computations. The dienols attempt to
Autor:
Márton Kajtár, Claudia Zucchi, Gyula Pályi, István T. Horváth, Giampaolo Giacomelli, György Gaál, Gyula Varadi, Judit Kajtár-Miklós
Publikováno v:
ChemInform. 27
( μ 2 -RC 2 R′)Co 2 (CO) 6 complexes are prepared where R ≠ R′ and one of these substituents is a chiral organic group. The structures of the 11 complexes (10 new) range from the simplest possible chiral acetylenic hydrocarbon derivative (S-3-
Publikováno v:
Carbohydrate Research. 223:71-80
In the circular-dichroism spectra of inclusion complexes of 7 types of cyclodextrin (CDs) with 6 kinds of azo dyes containing the naphthalene nucleus, the direction of inclusion and the stacking mode may be elucidated from patterns in the u.v. and th
Publikováno v:
Carbohydrate Research. 214:25-33
The circular-dichroism spectra of the inclusion complexes of 9 types of cyclodextrin (CDs) with 6 kinds of azobenzene derivatives generally show a single peak, but sometimes form a splitting pattern in the first π → π* region. All single patterns
Autor:
András Perczel, John Frank Marcoccia, Wladia Viviani, János G. Ángyán, Imre G. Csizmadia, Jean-Louis Rivail, Márton Kajtár
Publikováno v:
Journal of the American Chemical Society. 113:6256-6265
Publikováno v:
Journal of Molecular Structure: THEOCHEM. 232:291-319
On the basis of multidimensional conformational analysis a two-dimensional Ramachandran map of a single amino acid unit in a peptide is expected to have, under ideal conditions, 3 2 =9 distinct minima according to the following pattern: γ D δ D α