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448207-90-7

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448207-90-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 448207-90-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,4,8,2,0 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 448207-90:
(8*4)+(7*4)+(6*8)+(5*2)+(4*0)+(3*7)+(2*9)+(1*0)=157
157 % 10 = 7
So 448207-90-7 is a valid CAS Registry Number.

448207-90-7Relevant articles and documents

The first general palladium catalyst for the Suzuki-Miyaura and carbonyl enolate coupling of aryl arenesulfonates

Nguyen, Hanh Nho,Huang, Xiaohua,Buchwald, Stephen L.

, p. 11818 - 11819 (2003)

The first general method for the palladium-catalyzed Suzuki-Miyaura and carbonyl enolate coupling of unactivated aryl arenesulfonates was developed utilizing XPhos, 1, and Pd(OAc)2. This is of significant interest because aryl tosylates and aryl benzenesulfonates are more easily handled and considerably less expensive than aryl triflates. This catalyst system effects the coupling of a variety of aryl, heteroaryl, and extremely hindered arylboronic acids with different aryl tosylates, under mild conditions. The same catalyst was employed in the first carbonyl enolate coupling of aryl arensulfonates. Copyright

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