1312366-20-3Relevant articles and documents
Method for preparing chiral gamma-amino alcohol and chiral alpha-allyl alcohol by one-pot method
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Paragraph 0047-0050; 0055; 0270-0281, (2020/12/15)
The invention relates to a method for preparing chiral gamma-amino alcohol and chiral alpha-allyl alcohol by a one-pot method. The method comprises the following steps: making a racemic alpha-allyl alcohol compound, an amine compound, a chiral ruthenium complex and an alkaline reagent react in an organic solvent, and carrying out separation and purification after completion of the reaction, so that chiral gamma-aminoalcohols and chiral alpha-allylalcohol are prepared, wherein a chiral ruthenium complex is selected from one of them. According to the preparation method of the chiral compound, two chiral compounds with wide purposes, namely the chiral gamma-amino alcohol and the chiral alpha-allyl alcohol, are obtained at the same time through a one-pot reaction, the reaction is simple, the atom economy is high, few by-products are produced, and the requirements of green chemistry are met.
Isothiourea-Catalysed Acylative Kinetic Resolution of Aryl–Alkenyl (sp2vs. sp2) Substituted Secondary Alcohols
Musolino, Stefania F.,Ojo, O. Stephen,Westwood, Nicholas J.,Taylor, James E.,Smith, Andrew D.
supporting information, p. 18916 - 18922 (2016/12/26)
The non-enzymatic acylative kinetic resolution of challenging aryl–alkenyl (sp2vs. sp2) substituted secondary alcohols is described, with effective enantiodiscrimination achieved using the isothiourea organocatalyst HyperBTM (1 mol %) and isobutyric anhydride. The kinetic resolution of a wide range of aryl–alkenyl substituted alcohols has been evaluated, with either electron-rich or naphthyl aryl substituents in combination with an unsubstituted vinyl substituent providing the highest selectivity (S=2–1980). The use of this protocol for the gram-scale (2.5 g) kinetic resolution of a model aryl–vinyl (sp2vs. sp2) substituted secondary alcohol is demonstrated, giving access to >1 g of each of the product enantiomers both in 99:1 e.r.