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10-(4-chlorophenyl)-7,8-dihydro-2-methylpyrano[3,2-b]chromene-4,9(6H,10H)-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1420348-53-3

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1420348-53-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1420348-53-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,0,3,4 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1420348-53:
(9*1)+(8*4)+(7*2)+(6*0)+(5*3)+(4*4)+(3*8)+(2*5)+(1*3)=123
123 % 10 = 3
So 1420348-53-3 is a valid CAS Registry Number.

1420348-53-3Downstream Products

1420348-53-3Relevant academic research and scientific papers

CAN-catalyzed synthesis of 10-arylpyrano[3,2-b]chromene-4,9-diones under solvent-free conditions

Li, Yuling,Meng, Xiangxue,Cai, Gan,Du, Baixiang,Zhao, Bo

, p. 699 - 709 (2014)

A novel and efficient one-pot synthesis of 10-aryl-7,8-dihydropyrano[3,2-b] chromene-4,9(6H,10H)-diones by three-component reaction of aromatic aldehydes, 5-hydroxy-2-methylpyran-4-one, and cyclic 1,3-dicarbonyl compounds in the presence of a catalytic amount of ceric ammonium nitrate under solvent-free conditions is described. The advantages of this method include operational simplicity, short reaction time, recyclable catalyst, and high yields.

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