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1290542-49-2

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1290542-49-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1290542-49-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,0,5,4 and 2 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1290542-49:
(9*1)+(8*2)+(7*9)+(6*0)+(5*5)+(4*4)+(3*2)+(2*4)+(1*9)=152
152 % 10 = 2
So 1290542-49-2 is a valid CAS Registry Number.

1290542-49-2Downstream Products

1290542-49-2Relevant articles and documents

An efficient suzuki-miyaura coupling of aryl sulfamates and boronic acids catalyzed by NiCl2(dppp)

Chen, Guo-Jun,Han, Fu-She

supporting information; experimental part, p. 3575 - 3579 (2012/07/27)

The Suzuki-Miyaura cross-coupling of aryl sulfamates and boronic acids was investigated by using [1,3-bis(diphenylphosphanyl)propane]nickel(II) chloride {NiCl2(dppp)} as the catalyst. The results showed that NiCl 2(dppp) is a highly active and general catalyst that allows effective Suzuki-Miyaura cross-coupling of aryl sulfamates with a slight excess amount of the boronic acid (1.2 equiv.) in the presence of a low catalyst loading (generally 1.0-1.5 mol-%). The method also displays broad generality not only to various aryl sulfamates, but also to an array of boronic acids. Furthermore, various functional groups are tolerated. These apparent advantages make NiCl2(dppp) a practical and reliable catalyst system for the Suzuki-Miyaura coupling of aryl sulfamates.

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