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2-oxo-4,4-diphenylbutanoic acid is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20650-67-3

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20650-67-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20650-67-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,5 and 0 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 20650-67:
(7*2)+(6*0)+(5*6)+(4*5)+(3*0)+(2*6)+(1*7)=83
83 % 10 = 3
So 20650-67-3 is a valid CAS Registry Number.

20650-67-3Upstream product

20650-67-3Downstream Products

20650-67-3Relevant academic research and scientific papers

A new type of chiral-pyridoxamines for catalytic asymmetric transamination of α-keto acids

Chen, Jianfeng,Zhao, Junyu,Gong, Xing,Xu, Dongfang,Zhao, Baoguo

, p. 4612 - 4615 (2016)

A new type of chiral pyridoxamines bearing an adjacent chiral stereocenter has been developed via multi-step synthesis. The pyridoxamines displayed catalytic activity in asymmetric transamination of α-keto acids to give a variety of optically active amino acids in 27–78% yields with 34–62% ee's under very mild conditions. This work provides a synthetic strategy to construct new chiral pyridoxamines using bromopyridine 7 as a key synthon and also represents an early example of the applications of chiral pyridoxamines in asymmetric catalysis.

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