Publication detail

Highly Active and Selective Ru-PNH Catalyst in Aerobic Oxidation of Benzyl Amines

Year: 2019

Type of publication: článek v odborném periodiku

Name of source: ChemCatChem

Publisher name: Wiley-VCH

Place: Weinheim

Page from-to: 4624-4630

Titles:

Language	Name	Abstract	Keywords
cze	Vysoce aktivní RuPNF katalyzátor pro aerobní oxidace aminů	Vysoce aktivní RuPNF katalyzátor pro aerobní oxidace aminů byly studovány. Byly připraveny sloučeniny [Ru(eta(6)-cymene)(R)XCl] (R=(LSnCl)-Sn-1, (LGeCl)-Ge-1 (LPPh2)-P-2, X=Cl or SnCl3, L-1=[2-(CH2NEt2)-4,6-(tBu)(2)C6H2](-), L-2=2,6-iPr(2)-C6H3-NH-) a studovány v aerobních oxidacích.	Ru komplexy; aerobní oxidace; aminy
eng	Highly Active and Selective Ru-PNH Catalyst in Aerobic Oxidation of Benzyl Amines	Set of [Ru(eta(6)-cymene)(R)XCl] (R=(LSnCl)-Sn-1, (LGeCl)-Ge-1 (LPPh2)-P-2, X=Cl or SnCl3, L-1=[2-(CH2NEt2)-4,6-(tBu)(2)C6H2](-), L-2=2,6-iPr(2)-C6H3-NH-) catalysts was tested in aerobic oxidations of primary amines. The activity of studied catalysts depends on the charge of the Ru atom that has been influenced either by donating ligands R or by character of X. Typical Ru/P catalyst [Ru(eta(6)-cymene)((LPPh2)-P-2)Cl-2] (3) with least negative charge on the Ru atom has been observed as the most effective. The design of the phosphine ligand L-2 containing amino-phosphine PNH moiety provided efficient anchoring of complex 3 to silica gel via hydrogen bonding of the PNH functional group to SiO2 to give heterogeneous catalyst 3-silica. This complex has been also efficiently tested in aerobic oxidation as recyclable catalyst with cumulative TON up to 6930.	Ru complexes; aerobic oxidation; amine; heterogeneous; catalysis

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