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Your search keyword '"Sanjaya, Stephen"' showing total 3 results
Start Over Author "Sanjaya, Stephen" Topic amidines
3 results on '"Sanjaya, Stephen"'

1. Copper-catalyzed aliphatic C-H amination with an amidine moiety.

Author

Chen H, Sanjaya S, Wang YF, and Chiba S

Subjects
Amination, Amines chemistry, Catalysis, Diamines, Molecular Structure, Amidines chemistry, Amines chemical synthesis, Copper chemistry, Imidazoles chemistry
Abstract

A method for amination of aliphatic C-H bonds of N-alkylamidines is described that utilizes Cu(OAc)(2) as the catalyst in the presence of PhI(OAc)(2) and K(3)PO(4). The resulting products, dihydroimidazoles and tetrahydropyrimidines, could be converted into the corresponding diamines by hydride reduction.

Published
2013
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2. Copper-Catalyzed Aminooxygenation of N-Allylamidines with PhI(OAc)2.

Author

Sanjaya, Stephen and Chiba, Shunsuke

Subjects
*COPPER catalysts, *OXYGENATION (Chemistry), *AMINO compounds, *AMIDINES, *NITROGEN, *IODOBENZENE, *DIACETATES
Abstract

A Cu-catalyzed aminoacetoxylation of N-alkenylamidines has been achieved using PhI(OAc)2as an oxygen source for synthesis of 4-acetoxymethyl-4,5-dihydroimidazoles, which could be further converted into 2,3-diaminopropanol derivatives using AlH3as a reductant. [ABSTRACT FROM AUTHOR]

Published
2012
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3. Cu(II)-Mediated Aminooxygenation of Alkenylimines and Alkenylamidines with TEMPO.

Author

Sanjaya, Stephen, Sze Hui Chua, and Chiba, Shunsuke

Subjects
*COPPER, *PYRROLES, *HETEROCYCLIC compounds, *CARBONITRILES, *AMIDINES
Abstract

A method for the synthesis of oxymethyl dihydropyrroles (pyrrolines) and dihydroimidazoles has been developed via Cu(II)-mediated intramolecular aminooxygenation of alkenylimines and alkenylamidines, respectively, with 2,2,6,6-tetramethyl-1-piperidinyloxy radical (TEMPO). [ABSTRACT FROM AUTHOR]

Published
2012
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