281492

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Showing 1-7 of 7 results for "281492" within Papers

Asymmetric synthesis of both enantiomers of fluoxetine via microbiological reduction of ethyl benzoylacetate.

Chenevert R, et al.

Tetrahedron, 48(33), 6769-6776 (1992)

3-Amino-8-hydroxy-4-imino-6-methyl-5-phenyl-4,5-dihydro-3H-chromeno [2,3-d]pyrimidine: an effecient key precursor for novel synthesis of some interesting triazines and triazepines as potential anti-tumor agents.

Mohamed G Badrey et al.

Molecules (Basel, Switzerland), 17(10), 11538-11553 (2012-09-29)

A number of interesting heterocycles were prepared through interaction of the intermediate 3-amino-8-hydroxy-4-imino-6-methyl-5-phenyl-4,5-dihydro-3H-chromeno-[2,3-d]pyrimidine (1) and reagents such as hydrazonyl halides 2 to furnish triazine derivatives 4a-l. Reaction of 1 with phenacyl bromide afforded compound 5. Moreover, the title compound 1

A short synthesis of the triazolopyrimidine antibiotic essramycin.

Ugo Battaglia et al.

Journal of natural products, 73(11), 1938-1939 (2010-09-15)

A short synthesis of the 1,2,4-triazolo[1,5-a]pyrimidine antibiotic essramycin is described involving condensation of aminoguanidine with ethyl benzoylacetate to give an amino-1,2,4-triazole, followed by condensation with ethyl acetoacetate to form the pyrimidone ring.

Free radical reaction between 2-benzoyl-1,4-benzoquinones and 1,3-dicarbonyl compounds.

Kuang-Po Chen et al.

Organic & biomolecular chemistry, 7(19), 4074-4081 (2009-09-19)

A manganese(III)-mediated reaction between 2-benzoyl-1,4-benzoquinones and 1,3-dicarbonyl compounds that produces benzo[c]furan-4,7-diones and anthracene-1,4-diones with high chemoselectivity is described. With ethyl butyrylacetate, by changing the solvent, benzo[c]furan-4,7-diones and anthracene-1,4-diones can be generated in high chemoselectivities. With ethyl benzoylacetate, N ,N-dimethyl acetoacetamide

A practical and convenient fluorination of 1,3-dicarbonyl compounds using aqueous HF in the presence of iodosylbenzene.

Tsugio Kitamura et al.

Organic letters, 13(9), 2392-2394 (2011-04-09)

A simple, practical, and convenient fluorination of 1,3-dicarbonyl compounds was achieved by direct use of aqueous hydrofluoric acid and iodosylbenzene (PhIO). The reaction of ethyl benzoylacetate with the reagent system of aqueous HF and PhIO in CH(2)Cl(2) gave ethyl 2-fluoro-2-benzolyacetate

Reaction of iodonium ylides of 1,3-dicarbonyl compounds with HF reagents.

Keisuke Gondo et al.

Molecules (Basel, Switzerland), 17(6), 6625-6632 (2012-06-26)

Reaction of dibenzoylmethane with (diacetoxyiodo)benzene in the presence of KOH in MeCN quantitatively gave the corresponding iodonium ylide, which was treated with a HF reagent to afford the corresponding 2-fluorinated dibenzoylmethane in 14-50% yields. The similar reaction of the iodonium

The reaction of ethyl benzoylacetate with malononitrile: a novel synthesis of some pyridazine, pyridazino [2, 3-a] quinazoline and pyrrole derivatives.

Abdelrazek FM, et al.

Tetrahedron, 57(9), 1813-1817 (2001)

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