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1607449-12-6

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1607449-12-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1607449-12-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,0,7,4,4 and 9 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1607449-12:
(9*1)+(8*6)+(7*0)+(6*7)+(5*4)+(4*4)+(3*9)+(2*1)+(1*2)=166
166 % 10 = 6
So 1607449-12-6 is a valid CAS Registry Number.

1607449-12-6Downstream Products

1607449-12-6Relevant articles and documents

A palladium-catalyzed quinoline - 3 - amine asymmetric hydrogenation method of synthesizing chiral ring outside amine

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Paragraph 0045; 0046; 0048, (2017/10/13)

The invention discloses a method for synthesizing chiral cyclohexanediamine through asymmetric hydrogenation of palladium-catalyzed quinoline-3-amine. The method is characterized in that bronsted acid is used as an activating agent, and a catalytic system used in the method is a chiral biphosphine complex of palladium. The reaction can be carried out under the following conditions: the reaction temperature ranges from 60 DEG C to 80 DEG C; dichloromethane is used as a reaction reagent; the hydrogen pressure is 20-70 atmospheres; the molar ratio of a substrate to a catalyst is 20:1; palladium trifluoroacetate (Pd(OCOCF3)2) is used as a metal precursor; a chiral biphosphine ligand is used as a chiral ligand; and trifluoroacetic acid (CF3CO2H) is used as an activating agent. Corresponding chiral cyclohexanediamine derivatives can be prepared from quinoline-3-amine, and the enantiomeric excess can be up to 90%. The method is simple and convenient to operate, available in raw material, good in enantioselectivity, high in yield, capable of realizing green atom economy in reaction and environment-friendly.

Chiral phosphoric acid-catalyzed asymmetric transfer hydrogenation of quinolin-3-amines

Cai, Xian-Feng,Guo, Ran-Ning,Feng, Guang-Shou,Wu, Bo,Zhou, Yong-Gui

, p. 2680 - 2683 (2014/06/09)

A chiral phosphoric acid catalyzed asymmetric transfer hydrogenation of aromatic amines, quinolin-3-amines, was successfully developed with up to 99% ee. To supplement our previous work on the Ir-catalyzed asymmetric hydrogenation of 2-alkyl substituted q

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