Ethoxycarbonylation of 5-dethia-3-keto-4-methyl-5-oxacephams
نویسندگان
چکیده
منابع مشابه
Methyl 3′,4′,5′-trimethoxybiphenyl-4-carboxylate
In the title compound, C17H18O5, the dihedral angle between the benzene rings is 31.23 (16)°. In the crystal, the mol-ecules are packed in an anti-parallel fashion in layers along the a axis. In each layer, very weak C-H⋯O hydrogen bonds occur between the meth-oxy and methyl ester groups. Weak C-H⋯π inter-actions between the 4'- and 5'-meth-oxy groups and neighbouring benzene rings [meth-oxy-C-...
متن کامل3-Amino-5-methyl-5-(4-pyridyl)hydantoin
The title compound, 3-amino-5-methyl-5-(4-pyrid-yl)imid-azol-idine-2,4-dione, C(9)H(10)N(4)O(2), was obtained by reaction of 5-methyl-5-(4-pyrid-yl)hydantoin with hydrazine. It crystallizes as a racemate in the tetra-gonal space group I4(1)/a with one mol-ecule in the asymmetric unit. The dihedral angle between the pyridine ring and the five-membered hydantoin ring is 47.99 (3)° In the crystal ...
متن کامل5-Methyl-3-phenylisoxazole-4-carboxylic acid
In the title compound, C11H9NO3, the phenyl and isoxazole rings form a dihedral angle of 56.64 (8)°. The carb-oxy group is almost in the same plane as the isoxazole ring with a C-C-C-O torsion angle of -3.3 (2)°. In the crystal, pairs of O-H⋯O hydrogen bonds link the mol-ecules into head-to-head dimers. C-H⋯N hydrogen bonds and π-π stacking inter-actions between phenyl rings [centroid-centroid ...
متن کاملEthyl 5-methyl-3-phenylisoxazole-4-carboxylate
In the title compound, C13H13NO3, the dihedral angle between the phenyl and isoxazole rings is 43.40 (13)°. The eth-oxy-carbonyl group is rotated out of the plane of the isoxazole ring by 16.2 (13)°.
متن کامل5-(4-Methyl-3-nitrophenyl)-1H-tetrazole
In the title compound, C(8)H(7)N(5)O(2), the benzene ring makes a dihedral angle of 38.27 (11)° with the tetra-zole ring. The crystal structure is stabilized by N-H⋯N hydrogen bonds, forming an infinite one-dimensional chain parallel to the a axis.
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ژورنال
عنوان ژورنال: Arkivoc
سال: 2004
ISSN: 1551-7012
DOI: 10.3998/ark.5550190.0005.318