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2-(Fluoren-9-ylidene)-4-phenylbut-3-en-4-olide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20152-94-7

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20152-94-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20152-94-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,1,5 and 2 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20152-94:
(7*2)+(6*0)+(5*1)+(4*5)+(3*2)+(2*9)+(1*4)=67
67 % 10 = 7
So 20152-94-7 is a valid CAS Registry Number.

20152-94-7Downstream Products

20152-94-7Relevant academic research and scientific papers

Carbonyliron Complexation and Carbonyl Insertion of Allenic Ketones

Trifonov, Latchezar S.,Orahovats, Alexander S.,Linden, Anthony,Heimgartner, Heinz

, p. 1872 - 1879 (2007/10/02)

The allenic α-ketones 5a-f give, on irradiation in the presence of , the bis(tricarbonyliron) complexes 6a-f.In the case of ketone 5e, a minor bis(tricarbonyliron) complex with the proposed unique structure 8 is also obtained.Ketones 5a-d, which are disubstituted at C(4), under the same conditions, afford also the lactones 7a-d in moderate yields.The latter reaction is a new carbonyliron-mediated carbonyl insertion.The structure of the binuclear complexes 1a and 6e were established by X-ray crystallography.

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