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91760-72-4

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91760-72-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91760-72-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,7,6 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 91760-72:
(7*9)+(6*1)+(5*7)+(4*6)+(3*0)+(2*7)+(1*2)=144
144 % 10 = 4
So 91760-72-4 is a valid CAS Registry Number.

91760-72-4Relevant articles and documents

Synthesis of N-arylated sultams: Palladium- and copper-catalyzed cross coupling of aryl halides with 1,4-butane and 1,3-propanesultams

Steinhuebel, Dietrich,Palucki, Michael,Askin, David,Dolling, Ulf

, p. 3305 - 3307 (2004)

Palladium-catalyzed cross coupling of 1,4-butanesultam and 1,3-propanesultam with a variety of aryl halides was found to provide the desired products in 62-93% isolated yield using Xantphos as ligand. The Pd-catalyzed reaction was found to be superior to the analogous Cu-catalyzed reaction based on product yields, reaction rates, and substrate scope.

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