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4-Penten-2-one, 1-diazo-3-methyl-4-phenyl- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

90172-83-1

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90172-83-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90172-83-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,1,7 and 2 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90172-83:
(7*9)+(6*0)+(5*1)+(4*7)+(3*2)+(2*8)+(1*3)=121
121 % 10 = 1
So 90172-83-1 is a valid CAS Registry Number.

90172-83-1Relevant academic research and scientific papers

Vinylogous Wolff Rearrangement. 4. General Reaction of β,γ-Unsaturated α'-Diazo Ketones

Smith, Amos B.,Toder, Bruce H.,Branca, Stephen J.

, p. 3995 - 4001 (2007/10/02)

The preparation and vinylogous Wolff rearrangement (VWR) of some 21 acyclic and monocyclic β,γ-unsaturated α'-diazo ketones are described.The resulting γ,δ-unsaturated esters are summarized in Tables I-VI.The rearrangement is promoted by CuSO4, Cu(AcAc)2,

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