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121155-45-1

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121155-45-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121155-45-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,1,5 and 5 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 121155-45:
(8*1)+(7*2)+(6*1)+(5*1)+(4*5)+(3*5)+(2*4)+(1*5)=81
81 % 10 = 1
So 121155-45-1 is a valid CAS Registry Number.

121155-45-1Downstream Products

121155-45-1Relevant articles and documents

Cobalt-Catalyzed Enantioselective Vinylation of Activated Ketones and Imines

Huang, Yuan,Huang, Rui-Zhi,Zhao, Yu

, p. 6571 - 6576 (2016)

We present here an unprecedented cobalt-catalyzed enantioselective vinylation of α-ketoesters, isatins, and imines to deliver a range of synthetically useful allylic alcohols and amines in high enantiopurity. This method employs commercially available and easy to handle catalysts and reagents and exhibits a high degree of practicality. The efficiency, selectivity, and operational simplicity of this catalytic system coupled with the substrate generality render this method a valuable tool in organic synthesis.

Stereochemical preference of Candida parapsilosis ATCC 7330 mediated deracemization: E- versus Z-aryl secondary alcohols

Saravanan, Thangavelu,Chadha, Anju,Selvakumar, Rajendran,Doble, Mukesh

, p. 1360 - 1368,9 (2020/09/16)

The stereochemical preference of the biocatalyst, Candida parapsilosis ATCC 7330, was investigated with respect to the E/Z configuration in the deracemization and the asymmetric reduction of aryl secondary alcohols and prochiral ketones, respectively. The

Highly enantioselective sequential hydrogenation of ethyl 2-Oxo-4-arylbut-3-enoate to ethyl 2-hydroxy-4-arylbutyrate

Meng, Qinghua,Zhu, Lufeng,Zhang, Zhaoguo

supporting information; scheme or table, p. 7209 - 7212 (2009/05/07)

(Chemical Equation Presented) The hydrogenation of (E)-ethyl 2-oxo-4-arylbut-3-enoate with [NH2Me2]+[{RuCl [(S)-SunPhos]}2(μ-Cl3)] gave ethyl 2-hydroxy-4- arylbutyrate with 94-96% ee. Further investigation has proved that the hydrogenation proceeded via a sequential hydrogenation of C=O and C=C bonds, which is sensitive to the reaction temperature. Hydrolysis of ethyl 2-hydroxy-4-phenylbutyrate (ee 93%) provided the 2-hydroxy-4-phenylbutyric acid with 81% yield at 99% ee after a single recrystallization from 1, 2-dichloroethylene.

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