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Your search keyword '"Tran, Tung Q."' showing total 2 results
Start Over Author "Tran, Tung Q." Topic nitrone
2 results on '"Tran, Tung Q."'

1. An efficient method of synthesis of isoxazolidine-fused β-lactams via base-promoted cyclization–ring opening of carbamoyl-spirocyclopropane isoxazolidines.

Author

Tran, Tung Q., Savinkov, Ruslan S., Diev, Vyacheslav V., Starova, Galina L., and Molchanov, Alexander P.

Subjects
*RING formation (Chemistry), *CARBAMOYL compounds, *CYCLOPROPYL compounds, *LACTAMS, *CHEMICAL synthesis, *ISOXAZOLIDINES, *CYCLOPROPANE derivatives
Abstract

Abstract: 1,3-Dipolar cycloadditions of dialkyl-substituted 2-benzylidenecyclopropane-1,1-dicarboxylates and a number of C-carbamoyl nitrones proceed with high efficiency and selectivity with the formation of single isomeric spiro[cyclopropane-1,4-isoxazolidine] cycloadduct. Obtained cycloadducts easily undergo cyclopropyl ring opening–cyclization to form new β-lactams fused with isoxazolidine ring in high yields. [Copyright &y& Elsevier]

Published
2013
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2. An efficient and stereoselective cycloaddition of C-aryl and C-amido nitrones to dimethyl 2-benzylidenecyclopropane-1,1-dicarboxylate

Author

Tran, Tung Q., Diev, Vyacheslav V., and Molchanov, Alexander P.

Subjects
*STEREOCHEMISTRY, *RING formation (Chemistry), *NITROGEN oxides, *CYCLOPROPANE, *DICARBOXYLIC acids, *AZOLES, *ANALYTICAL chemistry
Abstract

Abstract: 1,3-Dipolar cycloadditions of dimethyl 2-benzylidenecyclopropane-1,1-dicarboxylate and a number of C-aryl or C-amido nitrones proceed with high efficiency and selectivity with the formation of only one isomeric spiro[cyclopropane-1,4-isoxazolidine] cycloadduct. [Copyright &y& Elsevier]

Published
2011
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