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84993-23-7

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84993-23-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 84993-23-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,9 and 3 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 84993-23:
(7*8)+(6*4)+(5*9)+(4*9)+(3*3)+(2*2)+(1*3)=177
177 % 10 = 7
So 84993-23-7 is a valid CAS Registry Number.

84993-23-7Relevant articles and documents

K2S2O8-promoted C-Se bond formation to construct α-phenylseleno carbonyl compounds and α,β-unsaturated carbonyl compounds

Yang, Xue-Yan,Wang, Ruizhe,Wang, Lu,Li, Jianjun,Mao, Shuai,Zhang, San-Qi,Chen, Nanzheng

, p. 28902 - 28905 (2020)

A novel K2S2O8-promoted C-Se bond formation from cross-coupling under neutral conditions has been developed. A variety of aldehydes and ketones react well using K2S2O8 as the oxidant in the absence of catalyst and afford desired products in moderate to excellent yields. This protocol provides a very simple route for the synthesis of α-phenylseleno carbonyl compounds and α,β-unsaturated carbonyl compounds.

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