Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Alex Yanovsky"'
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 8, Pp o2021-o2021 (2010)
The crystal structure of the title compound, C5H3BrN2S, shows that bromination of 1H-thieno[2,3-d]imidazole with N-bromosuccinimide in acetonitrile occurs at position 5 of the bicyclic system. The molecule is almost planar, with a mean deviation of 0
Externí odkaz:
https://doaj.org/article/09da7bb081cb4e3f938fec3837b07306
Autor:
Buwen Huang, Eugene Rui, Martin Wythes, Pei-Pei Kung, Curtis Moore, Arnold L. Rheingold, Alex Yanovsky
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 7, Pp o1723-o1723 (2010)
The structure of the title compound, C12H9BrN4, prepared by the reaction of 2-bromo-1-(6-bromo-3-pyridyl)ethanone with 2-amino-3-methylpyrazine indicates that the compound with the bromopyridyl substituent at position 2 of the imidazopyrazine fused-r
Externí odkaz:
https://doaj.org/article/98dfa5ef00b245ad8d63d9e6d817161b
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 6, Pp o1448-o1448 (2010)
The reaction of 2,4-dichloro-5-(trifluoromethyl)pyrimidine with 1H-pyrazole gave two structural isomers in a 1:1 ratio that were separable by chromatography. The title compound, C8H4ClF3N4, was the first product to elute and was characterized in the
Externí odkaz:
https://doaj.org/article/b6ef9e20125a410d80456f660022e127
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 1, Pp o175-o176 (2010)
rac-Benzyl 3-oxohexahydro-1H-pyrrolo[3,4-c]pyridine-5(6H)-carboxylate was separated by chiral chromatography, and one of the enantiomers ([α]22D = +10°) was hydrogenated in the presence of Pd/C in methanol, producing octahydro-3H-pyrrolo[3,4-c]pyri
Externí odkaz:
https://doaj.org/article/031d342c717e4216a64d978d82a76d58
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 1, Pp o242-o242 (2010)
The title compound, C12H13ClN6, was prepared by reaction of 4,5-dichloro-7H-pyrrolo[2,3-d]pyrimidine with 2-(1H-imidazol-4-yl)-N-methylethanamine, and the X-ray study confirmed that chloro-substituent in six-membered ring was replaced in the reaction
Externí odkaz:
https://doaj.org/article/f1a1b8ec1386414b83cf1a9c0771679e
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 12, Pp o3259-o3259 (2009)
The title compound, C9H7ClN2O2, was prepared by reaction of methyl 4-chloro-3-(prop-1-ynyl)picolinate with hydroxylamine in MeOH/KOH solution. The two essentially planar molecules which make up the asymmetric unit have almost identical geometries and
Externí odkaz:
https://doaj.org/article/f9c3cf689a00465a89ea8db855587d2d
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 11, Pp o2765-o2765 (2009)
The title compound, C9H10N2O2S, was obtained from the treatment of ethyl 4-cyano-3-hydroxy-5-morpholinothiophene-2-carboxylate with concentrated HCl. The mean plane of the essentially planar dihydrothiophene ring is almost orthogonal to the mirror pl
Externí odkaz:
https://doaj.org/article/4034992cba82497db7962b177a2cf594
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 10, Pp o2374-o2374 (2009)
The title compound, C12H19BrN4O, represents the minor component of the two products obtained in a series of transformations involving the Grignard reaction of tert-butoxycarbonyl-protected 4-aminocyclohexanone with MeMgBr, and subsequent interaction
Externí odkaz:
https://doaj.org/article/cafc96d911744c239c07171cb2e19624
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 10, Pp o2572-o2572 (2009)
Reaction of 2-(methylsulfanyl)pyrimidin-4-amine with the 5-(methoxyvinylidene) derivative of Meldrum's acid and subsequent heating of the product in Dowtherm fluid yielded the title compound, C8H7N3OS, which was proven to contain a bicyclic 4H-pyrimi
Externí odkaz:
https://doaj.org/article/4557acca1a144ccc8fc35143b41c1c73
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 6, Pp o1249-o1249 (2009)
The title compound, C9H12N4O4S, was proven to be the product of the reaction of methyl 5-amino-1H-pyrazole-3-carboxylate with ethyl isothiocyanatocarbonate. All non-H atoms of the molecule are planar, the mean deviation from the least squares plane b
Externí odkaz:
https://doaj.org/article/e3409e3586594cd6b557dcf11ef568fd