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1304789-29-4

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1304789-29-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1304789-29-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,4,7,8 and 9 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1304789-29:
(9*1)+(8*3)+(7*0)+(6*4)+(5*7)+(4*8)+(3*9)+(2*2)+(1*9)=164
164 % 10 = 4
So 1304789-29-4 is a valid CAS Registry Number.

1304789-29-4Downstream Products

1304789-29-4Relevant articles and documents

Copper-catalyzed coupling of imidazoles and pyrazoles with 1,1-dibromo-1-alkenes: A distinct approach for direct N-alkynylation of heteroarenes

Das, Biswanath,Salvanna,Reddy, Gandolla Chinna,Balasubramanyam, Penagaluri

experimental part, p. 6497 - 6500 (2011/12/15)

The direct N-alkynylation of heteroarenes, imidazoles, and pyrazoles with 1,1-dibromo-1-alkene has been carried out for the first time using [Cu(Phen)PPh3Br] (as a catalyst) and Cs2CO3 in DMSO at 80 °C. The products are formed in good to high yields (66-85%) within 3 h. No side products could be detected.

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