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4-(phenyldiazoacetoxy)butyl (diethoxyphosphoryl)diazoacetate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

203932-68-7

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203932-68-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 203932-68-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,3,9,3 and 2 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 203932-68:
(8*2)+(7*0)+(6*3)+(5*9)+(4*3)+(3*2)+(2*6)+(1*8)=117
117 % 10 = 7
So 203932-68-7 is a valid CAS Registry Number.

203932-68-7Relevant academic research and scientific papers

Reactivity of differentially substituted bis(diazo) esters in rhodium(II) mediated O-H insertion reactions

Moody, Christopher J.,Miller, David J.

, p. 2257 - 2268 (2007/10/03)

Selective catalysed decompositions of one diazo group in the presence of another are discussed. A range of bis(diazo) compounds was prepared in which the two diazo groups are differentially substituted. Rhodium(II) acetate catalysed decomposition in the presence of methanol resulted in exclusive O-H insertion reaction at the more reactive diazo group, the less reactive diazophosphonate remaining intact. With the more active rhodium(II) trifluoroacetamide as catalyst, both diazo groups decomposed simultaneously.

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