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Phosphonic acid, (2-ethynylphenyl)-, diethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

682348-80-7

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682348-80-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 682348-80-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,8,2,3,4 and 8 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 682348-80:
(8*6)+(7*8)+(6*2)+(5*3)+(4*4)+(3*8)+(2*8)+(1*0)=187
187 % 10 = 7
So 682348-80-7 is a valid CAS Registry Number.

682348-80-7Relevant academic research and scientific papers

A convenient and applicable route to synthesize 2-(1-alkynyl) phenylphosphonates

Peng, Ai-Yun,Zhang, Xin-Ying,Ding, Yi-Xiang

, p. 529 - 534 (2007/10/03)

A convenient and applicable route has been developed to synthesize various 2-(1-alkynyl)-phenylphosphonates starting from easily available phenols via palladium-catalyzed alkynyl dehydroxylation of 2-hydroxylphenylphosphonates.

Synthesis of phosphaisocoumarins via iodocyclization

Peng, Ai-Yun,Ding, Yi-Xiang

, p. 1119 - 1121 (2007/10/03)

4-Iodophosphaisocoumarins can be prepared in good yield and with high regioselectivity under mild conditions by the reaction of o-(1-alkynyl) phenylphosphonates with I2 or ICI. The present reaction represents the first example of a phosphonate

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