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253122-83-7

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253122-83-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 253122-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,1,2 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 253122-83:
(8*2)+(7*5)+(6*3)+(5*1)+(4*2)+(3*2)+(2*8)+(1*3)=107
107 % 10 = 7
So 253122-83-7 is a valid CAS Registry Number.

253122-83-7Relevant articles and documents

Substrate promiscuity of ortho-naphthoquinone catalyst: Catalytic aerobic amine oxidation protocols to deaminative cross-coupling and n-nitrosation

Kim, Hun Young,Oh, Kyungsoo,Si, Tengda

, p. 9216 - 9221 (2019)

ortho-Naphthoquinone-based organocatalysts have been identified as versatile aerobic oxidation catalysts. Primary amines were readily cross-coupled with primary nitroalkanes via deaminative pathway to give nitroalkene derivatives in good to excellent yields. Secondary and tertiary amines were inert to ortho-naphthoquinone catalysts; however, secondary nitroalkanes were readily converted by ortho-naphthoquinone catalysts to the corresponding nitrite species that in situ oxidized the amines to the corresponding N-nitroso compounds. Without using harsh oxidants in a stoichiometric amount, the present catalytic aerobic oxidation protocol utilizes the substrate promiscuity feature to provide a facile access to amine oxidation products under mild reaction conditions.

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