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(CO)5W(C(N(C2H5)2)CH2C(C6H5)CHC(C6H5)CHCOC6H5) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

201139-05-1

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201139-05-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 201139-05-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,1,1,3 and 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 201139-05:
(8*2)+(7*0)+(6*1)+(5*1)+(4*3)+(3*9)+(2*0)+(1*5)=71
71 % 10 = 1
So 201139-05-1 is a valid CAS Registry Number.

201139-05-1Downstream Products

201139-05-1Relevant academic research and scientific papers

Reaction of carbanion of Fischer-type carbene complexes with pyrylium salts. One pot substituted benzophenones formation by subsequent cyclization and double hydrogen β-elimination

Le Poul, Pascal,Robin-Le Guen, Francoise,Senechal-Tocquer, Marie-Claude,Caro, Bertrand

, p. 447 - 450 (1997)

Carbanions of Fischer-type carbene complex react with pyrylium salts. The unstable dienone formed gives substituted benzophenones after ring-closure and aromatization by double hydrogen β-elimination.

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