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methyl 2-ethyl-5-oxocyclopent-1-enecarboxylate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

103191-92-0

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103191-92-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 103191-92-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,3,1,9 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 103191-92:
(8*1)+(7*0)+(6*3)+(5*1)+(4*9)+(3*1)+(2*9)+(1*2)=90
90 % 10 = 0
So 103191-92-0 is a valid CAS Registry Number.

103191-92-0Downstream Products

103191-92-0Relevant academic research and scientific papers

Copper/silver-cocatalyzed conia-ene reaction of linear β-alkynic β-ketoesters

Deng, Chen-Liang,Song, Ren-Jie,Guo, Sheng-Mei,Wang, Zhi-Qiang,Li, Jin-Heng

, p. 5111 - 5114 (2008/03/27)

A novel and general copper/silver catalytic system has been developed for the Conia-ene intramolecular reaction of linear β-alkynic β-ketoesters. In the presence of (CuOTf)2·C 6H6 and AgSbF6 (or AgOAc), a variety of the linear β-alkynic β-ketoesters selectively underwent the Conia-ene intramolecular reaction in moderate to good yields.

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