124555-33-5Relevant articles and documents
Regioselective, Asymmetric Formal Hydroamination of Unactivated Internal Alkenes
Xi, Yumeng,Butcher, Trevor W.,Zhang, Jing,Hartwig, John F.
, p. 776 - 780 (2016)
We report the regioselective and enantioselective formal hydroamination of unsymmetrical internal alkenes catalyzed by a copper catalyst ligated by DTBM-SEGPHOS. The regioselectivity of the reaction is controlled by the electronic effects of ether, ester, and sulfonamide groups in the homoallylic position. The observed selectivity underscores the influence of inductive effects of remote substituents on the selectivity of catalytic processes occurring at hydrocarbyl groups, and the method provides direct access to various 1,3-aminoalcohol derivatives with high enantioselectivity. A regio- and enantioselective formal hydroamination of unsymmetrical, unactivated internal alkenes occurs with a silane and hydroxylamine derivative. The regioselectivity is controlled by the electronic effects of ether, ester, and sulfonamide groups in the homoallylic position. This method provides direct access to 1,3-aminoalcohols with high enantioselectivity.
Preparation method of (1R,3S)-3-amino-1-cyclopentanol and salt thereof
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, (2020/03/16)
The invention discloses a preparation method of (1R,3S)-3-amino-1-cyclopentanol and a salt thereof, and relates to the field of organic synthesis. In the method, a chiral source in an N-Acyl hydroxylamine compound is used as chiral induction, and an asymm
Preparation method of optically pure cyclic amino alcohol and salt thereof
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Paragraph 0104-0108, (2020/01/25)
The invention relates to the field of chemical pharmacy, particularly to a preparation method of optically pure cyclic amino alcohol and a salt thereof. The method comprises 1) hydrolysis: hydrolyzinga compound (12) to obtain a compound (13), and 2) catalytic hydrogenation: carrying out catalytic hydrogenation on the compound (13) obtained in the hydrolysis step to obtain a compound (1).
