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1213648-97-5

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1213648-97-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1213648-97-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,3,6,4 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1213648-97:
(9*1)+(8*2)+(7*1)+(6*3)+(5*6)+(4*4)+(3*8)+(2*9)+(1*7)=145
145 % 10 = 5
So 1213648-97-5 is a valid CAS Registry Number.

1213648-97-5Downstream Products

1213648-97-5Relevant articles and documents

Synthesis of: N -aryl β-amino acid derivatives via Cu(ii)-catalyzed asymmetric 1,4-reduction in air

Li, Min,Xia, Hong-Feng,Yang, Li-Yao,Hong, Tao,Xie, Lin-Jie,Li, Shijun,Wu, Jing

, p. 9187 - 9192 (2019/03/28)

In the presence of the inexpensive and stable stoichiometric reductant polymethylhydrosiloxane (PMHS) as well as certain amounts of appropriate alcohol and base additives, the non-precious metal copper-catalyzed asymmetric 1,4-hydrosilylation of β-aryl or β-alkyl-substituted N-aryl β-enamino esters was well realized to afford a diverse range of N-aryl β-amino acid esters in high yields and excellent enantioselectivities (26 examples, 90-98% ee). This approach tolerated the handling of both catalyst and reactants in air without special precautions. The chiral products obtained have been successfully converted to the corresponding enantiomerically enriched β-lactam and unprotected β-amino acid ester, which highlighted the synthetic utility of the developed catalytic procedure.

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