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Pentanoic acid, 2-methyl-3-oxo-, 1-ethylpropyl ester, (S)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

137708-19-1

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137708-19-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 137708-19-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,7,7,0 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 137708-19:
(8*1)+(7*3)+(6*7)+(5*7)+(4*0)+(3*8)+(2*1)+(1*9)=141
141 % 10 = 1
So 137708-19-1 is a valid CAS Registry Number.

137708-19-1Downstream Products

137708-19-1Relevant academic research and scientific papers

Enantioselective synthesis of α-alkyl-β-ketoesters: Asymmetric Roskamp reaction catalyzed by an oxazaborolidinium ion

Gao, Lizhu,Kang, Byung Chul,Hwang, Geum-Sook,Ryu, Do Hyun

, p. 8322 - 8325 (2012/09/08)

Breaking kamp: A catalytic route toward chiral α-alkyl-β- ketoesters using the title reaction of α-alkyl diazoester with aldehydes has been developed (see scheme). The reaction proceeds with high to excellent enantioselectivities and this methodology was applied to a concise two-step synthesis of the natural pheromone sitophilate. Copyright

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