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3-Hydroxy-4-(2,5-dihydroxyphenyl)-6-[(3,4-dihydroxyphenyl)methylene]-2H-pyran-2,5(6H)-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

54707-49-2

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54707-49-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54707-49-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,7,0 and 7 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 54707-49:
(7*5)+(6*4)+(5*7)+(4*0)+(3*7)+(2*4)+(1*9)=132
132 % 10 = 2
So 54707-49-2 is a valid CAS Registry Number.

54707-49-2Relevant academic research and scientific papers

Fungal Pigments, 49. - Synthesis of Grevillins and Related 2H-Pyran-2,5(6H)-diones

Lohrisch, Hans-Joachim,Kopanski, Lothar,Herrmann, Rupert,Schmidt, Holger,Steglich, Wolfgang

, p. 177 - 194 (2007/10/02)

A convergent synthesis of grevillins 1 starts from diazoesters 6 which are converted into 3-aryl-2-oxopropyl ethyl oxalates 4 via bromoketones 7.Cyclization of 4 leads to pyrandiones 2 which are condensed with aromatic aldehydes to yield 4-aryl-2-benzylid

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