Showing papers on "Transfer hydrogenation published in 1987"
TL;DR: In this article, the asymmetric transfer hydrogenation of acetophenone in isopropanol solution was investigated, and optical yields of up to 31% were obtained, using a catalyst formed in situ from [Rh(1,5-cyclooctadiene)Cl]2 and (+)-(S)-3-s-butyl-1,10-phenanthroline.
28 citations
TL;DR: In this paper, the X-ray structure of (1) has been reported from an Ru3(CO)12-based catalytic system for the transfer hydrogenation of benzylideneaniline and found to be catalytically active.
Abstract: (µ-H)Ru3(CO)9(µ3-PhNCPh)(1) has been isolated from an Ru3(CO)12-based catalytic system for the transfer hydrogenation of benzylideneaniline and found to be catalytically active; the X-ray structure of (1) is reported.
24 citations
TL;DR: Ru4(CO)12(C6H6O) and Ru3(CO 10(C 6H8O) have been obtained from the reaction of Ru3CO 12 with cyclohex-1-en-2-one; 1 has been characterized by an X-ray structure determination.
9 citations
TL;DR: In this paper, N -benzyl 1,4-dihydronicotinamide (BNAH) acts as an efficient hydride donor in its reactions with mono and polynuclear metal carbonyls.
8 citations
TL;DR: In this article, the liquid phase transfer hydrogenation of 4-tert-butylcyclohexanone by 2-propanol at 356 K with γ-Al2O3 as catalyst was studied.
6 citations
TL;DR: For example, Co-TPP and Fe-Co-Cr-TPP as mentioned in this paper showed that the latter is more likely to achieve better results than the former, while Fe demonstrated that the former outperformed the latter.
Abstract: 金属ポルフィリンを有機合成化学的な触媒反応に利用するための基礎研究としてテトラリンとアントラセンとの間の水素移行反応に対する触媒作用を検討した。Scを除く9種の第一遷移金属テトラフェニルポルフィリン錯体 (M-TPP) を用いて343°Cで活性試験を行った。反応の主生成物は9,10-ジヒドロアントラセン (9,10-DHA) で副生成物は1,2-または1,4-ジヒドロアントラセンおよびテトラヒドロアントラセンである。Znを除く全ての錯体が活性を示し, 9,10-DHAを高選択率で生成した。特にCo, Fe, Cr-TPPと, 空のdz2軌道を有する錯体の活性が高く, 相対速度は対数表示でそれぞれ3.09, 1.11, 0.81と求められた。Co-TPPは溶存酸素で酸化され失活する現象が認められた。
3 citations
TL;DR: In this paper, the asymmetric transfer hydrogenation of acetophenone in isopropanol solution was investigated, and optical yields of up to 31% were obtained, using a catalyst formed in situ from [Rh(1,5-cyclooctadiene)Cl]2 and (+)-(S)-3-s-butyl-1,10-phenanthroline.
Abstract: The catalyst formed in situ from [Rh(1,5-cyclooctadiene)Cl]2 and (+)-(S)-3-s-butyl-1,10-phenanthroline promotes the asymmetric transfer hydrogenation of acetophenone in isopropanol solution; optical yields of up to 31% are obtained.
2 citations
TL;DR: An in situ rhodium catalyst containing N-acetyl-(S)-methionine (R,S)-sulphoxide, and using propan-2-ol as a source of hydrogen, effects enantioselective hydrogenation of alkyl aryl ketones with up to 75% enantiomeric excess as mentioned in this paper.
Abstract: An in situ rhodium catalyst containing N-acetyl-(S)-methionine (R,S)-sulphoxide, and using propan-2-ol as a source of hydrogen, effects enantioselective hydrogenation of alkyl aryl ketones with up to 75% enantiomeric excess.