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1332458-53-3

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1332458-53-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1332458-53-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,2,4,5 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1332458-53:
(9*1)+(8*3)+(7*3)+(6*2)+(5*4)+(4*5)+(3*8)+(2*5)+(1*3)=143
143 % 10 = 3
So 1332458-53-3 is a valid CAS Registry Number.

1332458-53-3Downstream Products

1332458-53-3Relevant articles and documents

Nickel-catalyzed formation of cyclopentenone derivatives via the unique cycloaddition of α,β-unsaturated phenyl esters with alkynes

Ohashi, Masato,Taniguchi, Tomoaki,Ogoshi, Sensuke

supporting information; experimental part, p. 14900 - 14903 (2011/11/01)

Oxygen-containing organic compounds, such as ethers, carboxylates, and carbamates, have recently received increasing attention because of their newly discovered applications as electrophiles in cross-coupling reactions via transition metal-catalyzed C-O bond activation. However, no cycloaddition reaction involving their C-O bond activation has been demonstrated thus far. The present study developed a Ni(0)-catalyzed unique [3+2] cycloaddition reaction of α,β-unsaturated phenyl esters with alkynes in iPrOH to yield cyclopentenone derivatives.

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