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2-(4-chlorophenyl)-9-methyl-4-phenylpyrano[3,2-c]chromen-5(4H)-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1228050-56-3

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1228050-56-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1228050-56-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,8,0,5 and 0 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1228050-56:
(9*1)+(8*2)+(7*2)+(6*8)+(5*0)+(4*5)+(3*0)+(2*5)+(1*6)=123
123 % 10 = 3
So 1228050-56-3 is a valid CAS Registry Number.

1228050-56-3Downstream Products

1228050-56-3Relevant academic research and scientific papers

DDQ-mediated tandem synthesis of functionalized pyranocoumarins from 4-hydroxycoumarins and 1,3-diarylallylic compounds

He, Zhenxing,Lin, Xufeng,Zhu, Yuanxun,Wang, Yanguang

experimental part, p. 965 - 976 (2010/10/02)

A simple and efficient DDQ-mediated oxidative cross-coupling between 4-hydroxycoumarin and 1,3-diarylallylic compounds was developed. The reaction furnished functionalized pyranocoumarins in a single step without using any metal catalyst. The tandem process involves an intermolecular C-C bond formation and an intramolecular C-O bond formation through double oxidative C-H activation.

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