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1 Phenylethanol

The Experts below are selected from a list of 4215 Experts worldwide ranked by ideXlab platform

Yankui Yu – 1st expert on this subject based on the ideXlab platform

  • asymmetric reduction of acetophenone into r 1 Phenylethanol by endophytic fungus neofusicoccum parvum byef07 isolated from illicium verum
    Biochemical and Biophysical Research Communications, 2016
    Co-Authors: Haiyun Li, Ziyuan Li, Guihua Ruan, Yankui Yu

    Abstract:

    Seventy-nine strains of endophytic fungi isolated from the healthy leaves, twigs and fruits of Illicium verum were screened for the asymmetric reduction activities to acetophenone. Strain BYEF07, which showed relatively high reduction activities, has been classified as Neofusicoccum parvum, and the main product was confirmed to be (R)-(+)-1Phenylethanol by GC–MS and chiral HPLC methods. The bio-reduction conditions of acetophenone by cells of N. parvum BYEF07 were investigated in detail. Under the conditions of 1.8 g/L of acetophenone, 100 g/L of microorganism cells and 10 g/L of glucose in 40 mL Na2HPO4 KH2PO4 buffer solution at pH7.5, 30 °C and 150 rpm, after 48 h reaction, the production yield of 1Phenylethanol and enantiomeric excess value of (R)-(+)-1Phenylethanol were 78% and 96%, respectively.

  • Asymmetric reduction of acetophenone into R-(+)-1Phenylethanol by endophytic fungus Neofusicoccum parvum BYEF07 isolated from Illicium verum.
    Biochemical and Biophysical Research Communications, 2016
    Co-Authors: Haiyun Li, Ziyuan Li, Guihua Ruan, Yankui Yu

    Abstract:

    Seventy-nine strains of endophytic fungi isolated from the healthy leaves, twigs and fruits of Illicium verum were screened for the asymmetric reduction activities to acetophenone. Strain BYEF07, which showed relatively high reduction activities, has been classified as Neofusicoccum parvum, and the main product was confirmed to be (R)-(+)-1Phenylethanol by GC–MS and chiral HPLC methods. The bio-reduction conditions of acetophenone by cells of N. parvum BYEF07 were investigated in detail. Under the conditions of 1.8 g/L of acetophenone, 100 g/L of microorganism cells and 10 g/L of glucose in 40 mL Na2HPO4 KH2PO4 buffer solution at pH7.5, 30 °C and 150 rpm, after 48 h reaction, the production yield of 1Phenylethanol and enantiomeric excess value of (R)-(+)-1Phenylethanol were 78% and 96%, respectively.

Junwei An – 2nd expert on this subject based on the ideXlab platform

  • oxidative kinetic resolution of 1 Phenylethanol catalyzed by sugar based salen mn iii complexes
    Carbohydrate Research, 2008
    Co-Authors: Jiquan Zhao, Yuecheng Zhang, Weiyu Wang, Junwei An

    Abstract:

    Abstract Three new chiral salen–Mn(III) complexes with sugars at the C-5(5′) positions of the salicylaldehyde moieties of the salen ligand were synthesized. Their structures were characterized by FTIR, MS, and elemental analysis. The complexes together with two previously reported ones were successfully used as chiral catalysts for the oxidative kinetic resolution (OKR) of 1Phenylethanol using PhI(OAc) 2 as an oxidant and KBr as an additive. Excellent enantiomeric excess (up to 89%) of the product was achieved in 0.5 h at 20 °C. The results showed that the sugars at C-5(5′) of salicylaldehyde moieties in the ligand had influences on the catalytic performances of the complexes. It was concluded that the sugars with the same rotation direction of polarized light as the diimine bridge within the complex could enhance the chiral induction of the complex in the OKR of 1Phenylethanol, but the sugars with the opposite one would reduce that of the corresponding complex.

  • Oxidative kinetic resolution of 1Phenylethanol catalyzed by sugar-based salen–Mn(III) complexes
    Carbohydrate Research, 2008
    Co-Authors: Jiquan Zhao, Yuecheng Zhang, Weiyu Wang, Junwei An

    Abstract:

    Abstract Three new chiral salen–Mn(III) complexes with sugars at the C-5(5′) positions of the salicylaldehyde moieties of the salen ligand were synthesized. Their structures were characterized by FTIR, MS, and elemental analysis. The complexes together with two previously reported ones were successfully used as chiral catalysts for the oxidative kinetic resolution (OKR) of 1Phenylethanol using PhI(OAc) 2 as an oxidant and KBr as an additive. Excellent enantiomeric excess (up to 89%) of the product was achieved in 0.5 h at 20 °C. The results showed that the sugars at C-5(5′) of salicylaldehyde moieties in the ligand had influences on the catalytic performances of the complexes. It was concluded that the sugars with the same rotation direction of polarized light as the diimine bridge within the complex could enhance the chiral induction of the complex in the OKR of 1Phenylethanol, but the sugars with the opposite one would reduce that of the corresponding complex.

Haiyun Li – 3rd expert on this subject based on the ideXlab platform

  • asymmetric reduction of acetophenone into r 1 Phenylethanol by endophytic fungus neofusicoccum parvum byef07 isolated from illicium verum
    Biochemical and Biophysical Research Communications, 2016
    Co-Authors: Haiyun Li, Ziyuan Li, Guihua Ruan, Yankui Yu

    Abstract:

    Seventy-nine strains of endophytic fungi isolated from the healthy leaves, twigs and fruits of Illicium verum were screened for the asymmetric reduction activities to acetophenone. Strain BYEF07, which showed relatively high reduction activities, has been classified as Neofusicoccum parvum, and the main product was confirmed to be (R)-(+)-1Phenylethanol by GC–MS and chiral HPLC methods. The bio-reduction conditions of acetophenone by cells of N. parvum BYEF07 were investigated in detail. Under the conditions of 1.8 g/L of acetophenone, 100 g/L of microorganism cells and 10 g/L of glucose in 40 mL Na2HPO4 KH2PO4 buffer solution at pH7.5, 30 °C and 150 rpm, after 48 h reaction, the production yield of 1Phenylethanol and enantiomeric excess value of (R)-(+)-1Phenylethanol were 78% and 96%, respectively.

  • Asymmetric reduction of acetophenone into R-(+)-1Phenylethanol by endophytic fungus Neofusicoccum parvum BYEF07 isolated from Illicium verum.
    Biochemical and Biophysical Research Communications, 2016
    Co-Authors: Haiyun Li, Ziyuan Li, Guihua Ruan, Yankui Yu

    Abstract:

    Seventy-nine strains of endophytic fungi isolated from the healthy leaves, twigs and fruits of Illicium verum were screened for the asymmetric reduction activities to acetophenone. Strain BYEF07, which showed relatively high reduction activities, has been classified as Neofusicoccum parvum, and the main product was confirmed to be (R)-(+)-1Phenylethanol by GC–MS and chiral HPLC methods. The bio-reduction conditions of acetophenone by cells of N. parvum BYEF07 were investigated in detail. Under the conditions of 1.8 g/L of acetophenone, 100 g/L of microorganism cells and 10 g/L of glucose in 40 mL Na2HPO4 KH2PO4 buffer solution at pH7.5, 30 °C and 150 rpm, after 48 h reaction, the production yield of 1Phenylethanol and enantiomeric excess value of (R)-(+)-1Phenylethanol were 78% and 96%, respectively.