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147912-88-7

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147912-88-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 147912-88-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,9,1 and 2 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 147912-88:
(8*1)+(7*4)+(6*7)+(5*9)+(4*1)+(3*2)+(2*8)+(1*8)=157
157 % 10 = 7
So 147912-88-7 is a valid CAS Registry Number.

147912-88-7Downstream Products

147912-88-7Relevant articles and documents

Reaction of Difluoromethyl Phenyl Selenoxide with Acetic Anhydride. A Route to Difluoro(phenylseleno)methylation of Ethers

Uneyama, Kenji,Maeda, Kazuhiro,Tokunaga, Yukio,Itano, Nobuaki

, p. 370 - 375 (2007/10/02)

Difluoromethyl phenyl selenoxide (2) has been prepared and allowed to react with acetic anhydride in the presence of cyclic ethers and sulfides.Difluorophenylselenomethylation occurred smoothly on reacting 2 with Ac2O in refluxing dichloromethane to give ω-alkyl acetates 4 in 34-87percent yields.A sequential reaction of Pummerer type rearrangement, difluorocarbene formation, electrophilic addition of the carbene to oxygen of ethers leading to oxonium ylide, and trapping with phenylselenyl acetate is proposed.

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