Reductive amination of aldehydes and ketones by a Hantzsch dihydropyridine using scandium triflate as a catalyst

Itoh, Takashi; Nagata, Kazuhiro; Kurihara, Ayako; Miyazaki, Michiko; Ohsawa, Akio

doi:10.1016/s0040-4039(02)00493-8

Cited by 77 publications

(31 citation statements)

References 32 publications

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“…15 It was revealed that the reduction was completely selective for aldehyde-derived imines over ketone-derived ones. This paper describes these results in detail.…”

Section: Introductionmentioning

confidence: 99%

A selective reductive amination of aldehydes by the use of Hantzsch dihydropyridines as reductant

et al. 2004

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“…15 It was revealed that the reduction was completely selective for aldehyde-derived imines over ketone-derived ones. This paper describes these results in detail.…”

Section: Introductionmentioning

confidence: 99%

A selective reductive amination of aldehydes by the use of Hantzsch dihydropyridines as reductant

et al. 2004

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“…In addition, they can be used as reducing agents for the direct reductive amination of aldehydes and ketones [14]. These significant properties attracted the attention of many organic chemists to the synthesis of these types of compounds.…”

Section: Introductionmentioning

confidence: 99%

Poly(vinylpyrrolidinium) perchlorate as a new and efficient catalyst for the promotion of the synthesis of polyhydroquinoline derivatives via Hantzsch condensation

2015

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A green approach for the promotion of the synthesis of Hantzsch products using poly(vinylpyrrolidinium) perchlorate {[PVPH]ClO 4 } as a new modified polymeric catalyst in the absence of solvent is reported. The title catalyst is easily prepared and characterized using a variety of techniques including infrared spectra, X-ray diffraction, thermal gravimetric analysis, scanning electron microscopy, pH analysis, and Hammett acidity function. Some of the advantages of this novel synthetic method are: easy preparation of the catalyst, short reaction times, high to excellent yields of the products, simple and easy work-up procedure, and reusability of the catalyst.

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“…Reductive amination of aldehydes using various reducing agents were recently reported [14][15][16][17]. There are however only few reports on the direct catalytic reductive amination of carbonyl compounds using organosilane as a reducing reagent.…”

Section: Introductionmentioning

confidence: 99%

Gallium(III) Triflate Catalyzed Direct Reductive Amination of Aldehydes

Prakash

Mathew

et al. 2010

Catal Lett

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Direct hydroamination of aldehydes and ketones provides one-step entry into desired a-aminoalkane derivatives which are important synthons for many biologically active molecules. The reductive amination of aldehydes in the presence of silanes has been effectively promoted by Ga(OTf) 3 as a catalyst. Mild conditions, easy work-up and high purity of products with excellent yields are the major advantages of this method.

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Reductive amination of aldehydes and ketones by a Hantzsch dihydropyridine using scandium triflate as a catalyst

Cited by 77 publications

References 32 publications

A selective reductive amination of aldehydes by the use of Hantzsch dihydropyridines as reductant

A selective reductive amination of aldehydes by the use of Hantzsch dihydropyridines as reductant

Poly(vinylpyrrolidinium) perchlorate as a new and efficient catalyst for the promotion of the synthesis of polyhydroquinoline derivatives via Hantzsch condensation

Gallium(III) Triflate Catalyzed Direct Reductive Amination of Aldehydes

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