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83393-61-7

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83393-61-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83393-61-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,3,9 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 83393-61:
(7*8)+(6*3)+(5*3)+(4*9)+(3*3)+(2*6)+(1*1)=147
147 % 10 = 7
So 83393-61-7 is a valid CAS Registry Number.

83393-61-7Downstream Products

83393-61-7Relevant articles and documents

Autoxidation/Aldol Tandem Reaction of 2-Oxindoles with Ketones: A Green Approach for the Synthesis of 3-Hydroxy-2-Oxindoles

Zhang, Qing-Bao,Jia, Wen-Liang,Ban, Yong-Liang,Zheng, Yong,Liu, Qiang,Wu, Li-Zhu

, p. 2595 - 2598 (2016/02/27)

In the presence of tetrabutylammonium fluoride and molecular sieves (MS) 4 ? in DMF, an efficient autoxidation reaction of 2-oxindoles with ketones under air at room temperature has been developed. This approach may provide a green, practical, and metal-free protocol for a wide range of biologically important 3-hydroxy-3-(2-oxo-alkyl)-2-oxindoles.

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