(Z)-Methyl 2-methoxyimino-3-oxobutanoate
نویسندگان
چکیده
The title compound, C(6)H(9)NO(4), was prepared stereoselectively as a precursor for 1-aza-dienes in a study of hetero-Diels-Alder reactions. The configuration of the C=N double bond was found to be Z, corroborating earlier assignments of similar compounds based only on NMR and IR spectroscopic analysis.
منابع مشابه
(Z)-Methyl 4-(1,3-benzothiazol-2-ylsulfanyl)-2-(methoxyimino)-3-oxobutanoate
In the mol-ecular structure of the title compound, C(13)H(12)N(2)O(4)S(2), there is a dihedral angle of 0.41 (13)° between the benzene and thia-zole rings. In the crystal, inversion dimers linked by two C-H⋯O inter-actions together with π-π stacking between the parallel benzene rings of adjacent mol-ecules [centroid-centroid distance = 3.673 (2) Å].
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The title compound, C(24)H(27)FN(2)O(4), is an important inter-mediate in the synthesis of fungicidal strobilurin-type compounds. In the crystal structure, the oxime bond attached to the cyclo-propane ring adopts a Z configuration, while the oxime bond attached to the benzene ring adopts an E configuration. The fluoro-methyl-phenyl group adopts a trans configuration with respect to the remainde...
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The title mol-ecule, C(13)H(13)NO(5), adopts a Z conformation at the C= C double bond. The eth-oxy atoms of the ethyl ester group are disordered over two orientations in a 3:2 ratio. Weak inter-molecular C-H⋯O hydrogen bonds help to establish the packing.
متن کاملBis(1,3-benzothiazole-2-thiolato)[(Z)-methyl 2-(2-amino-1,3-thiazol-4-yl)-2-(methoxyimino)acetate]nickel(II)
In the title compound, [Ni(C(7)H(4)NS(2))(2)(C(7)H(9)N(3)O(3)S)], the Ni(II) ion is in a slightly distorted N(4)S(2) octa-hedral coordination environment. The two benzothia-zole-2-thiol-ate ligands chelate via their thia-zole N and thiol-ate S atoms while the methyl 2-(2-amino-thia-zol-4-yl)-2-(methoxy-imino)acetate also acts as a chelate ligand binding through the thia-zole and imino N atoms. ...
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In the title compound, C(7)H(9)N(3)O(3)S, the planes of the 2-amino-1,3-thia-zol-4-yl and the methyl ester groups are oriented at a dihedral angle of 67.06 (7)°. In the crystal, inversion dimers linked by pairs of N-H⋯N hydrogen bonds occur, forming R(2) (2)(8) ring motifs. The dimers are inter-linked by N-H⋯O hydrogen bonds, resulting in sheets propagating in the ac plane.
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