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1448251-23-7

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1448251-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1448251-23-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,8,2,5 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1448251-23:
(9*1)+(8*4)+(7*4)+(6*8)+(5*2)+(4*5)+(3*1)+(2*2)+(1*3)=157
157 % 10 = 7
So 1448251-23-7 is a valid CAS Registry Number.

1448251-23-7Relevant articles and documents

Palladium(II)-catalyzed direct carboxylation of alkenyl C-H bonds with CO2

Sasano, Kota,Takaya, Jun,Iwasawa, Nobuharu

supporting information, p. 10954 - 10957 (2013/08/23)

Pd-catalyzed direct carboxylation of alkenyl C-H bonds with carbon dioxide was realized for the first time. Treatment of 2-hydroxystyrenes and a catalytic amount of Pd(OAc)2 with Cs2CO3 under atmospheric pressure of CO2 afforded corresponding coumarins in good yield. Furthermore, isolation of the key alkenylpalladium intermediate via C-H bond cleavage was achieved. The reaction was proposed to undergo reversible nucleophilic addition of the alkenylpalladium intermediate to CO2.

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