Knoevenagel condensation of aromatic aldehydes with ethyl 4-chloro-3-oxobutanoate in ionic liquids
نویسندگان
چکیده
منابع مشابه
(Z)-Ethyl 4-chloro-2-[(4-chlorophenyl)hydrazono]-3-oxobutanoate
The title compound, C(12)H(12)Cl(2)N(2)O(3), crystallizes as a non-merohedral twin with a twinning ratio of 0.51:0.49. The mol-ecule adopts a keto-hydrazo tautomeric form stabilized by an intra-molecular N-H⋯O hydrogen bond. The configuration around the N-N bond is trans.
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Efficient Knoevenagel condensation of barbituric acid with different aromatic aldehydes on basic alumina was performed in a conventional microwave over in the absence of solvent.
متن کاملEthyl 2-[(4-chlorophenyl)hydrazono]-3-oxobutanoate
The mol-ecule of the title oxobutanoate derivative, C(12)H(13)ClN(2)O(3), is nearly planar; the inter-planar angle between the benzene ring and the mean plane through the hydrazono-3-oxobutanoate unit is 2.69 (3)°. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal packing, C-H⋯O(3-oxo) inter-actions link mol-ecules into dimers. The dimers thus formed are linked...
متن کاملBiCl3 catalyzed reaction of aromatic aldehydes with 5,5-dimethyl-1, 3-cyclohexandione in ionic liquids
The reaction of aromatic aldehydes 1 with 5, 5-dimethyl-1, 3-cyclohexandione 2 was investigated in this paper by using [bmim][BF4] as the reaction medium. It was found that when the reaction was carried out in the presence of catalytic amount of BiCl3, xanthenediones 3 was obtained in high yields.
متن کاملmicrowave enhanced knoevenagel condensation of barbituric acid with aromatic aldehydes on basic alumina
efficient knoevenagel condensation of barbituric acid with different aromatic aldehydes on basic alumina was performed in a conventional microwave over in the absence of solvent.
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ژورنال
عنوان ژورنال: Journal of the Brazilian Chemical Society
سال: 2012
ISSN: 0103-5053
DOI: 10.1590/s0103-50532012000500006