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1289115-92-9

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1289115-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1289115-92-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,9,1,1 and 5 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1289115-92:
(9*1)+(8*2)+(7*8)+(6*9)+(5*1)+(4*1)+(3*5)+(2*9)+(1*2)=179
179 % 10 = 9
So 1289115-92-9 is a valid CAS Registry Number.

1289115-92-9Upstream product

1289115-92-9Relevant academic research and scientific papers

Gosteli-claisen rearrangement of propargyl vinyl ethers: Cascading rearrangements molecular

Gille, Annika,Rehbein, Julia,Hiersemann, Martin

supporting information; experimental part, p. 2122 - 2125 (2011/06/25)

The ambivalent reactivity of 2-alkoxycarbonyl-substituted propargyl vinyl ethers has been explored. Depending on the conditions, the catalyzed and uncatalyzed Gosteli-Claisen rearrangement triggers downstream transformations that cascade from initially formed γ-allenyl α-keto esters to highly substituted furanes and cyclopentenes. In support of a mechanistic hypothesis, the results of a DFT study using the B1B95 and B3LYP functionals are revealed.

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