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128720-29-6

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128720-29-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128720-29-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,7,2 and 0 respectively; the second part has 2 digits, 2 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 128720-29:
(8*1)+(7*2)+(6*8)+(5*7)+(4*2)+(3*0)+(2*2)+(1*9)=126
126 % 10 = 6
So 128720-29-6 is a valid CAS Registry Number.

128720-29-6Downstream Products

128720-29-6Relevant articles and documents

Stable but reactive perfluoroalkylzinc reagents: Application in ligand-free copper-catalyzed perfluoroalkylation of aryl iodides

Aikawa, Kohsuke,Nakamura, Yuzo,Yokota, Yuki,Toya, Wataru,Mikami, Koichi

, p. 96 - 100 (2015/02/05)

The aromatic perfluoroalkylation catalyzed by a copper(I) salt with bis(perfluoroalkyl)zinc reagents Zn(RF)2(DMPU)2, which were prepared and then isolated as a stable white powder from perfluoroalkyl iodide and diethylzinc, was accomplished to provide the perfluoroalkylated products in good-to-excellent yields. The advantages of this reliable and practical catalytic reaction are 1) airstable and easy-to-handle bis(perfluoroalkyl)zinc reagents can be utilized, 2) the reagent is reactive and hence the operation without activators and ligands is simple, and 3) not only trifluoromethylation but also perfluoroalkylation can be attained.

Nickel(0)-catalyzed fluoroalkylation of alkenes, alkynes, and aromatics with perfluoroalkyl chlorides

Huang,Chen

, p. 4651 - 4656 (2007/10/03)

Treatment of perfluoroalkyl chlorides (RFCl) with alkenes, alkynes, or aromatics in the presence of 0.1 equiv of nickel dichloride, 1.5 equiv of zinc powder, and 0.4 equiv of triphenylphosphine in DMF at 95-100 °C for 6-8 h give the correspondi

Reactions of Perfluoroalkanesulfonyl Chlorides with Aromatic Compounds Catalyzed by a Ruthenium(II) Complex

Kamigata, Nobumasa,Fukushima, Takamasa,Yoshida, Masato

, p. 649 - 650 (2007/10/02)

The reactions of perfluoroalkanesulfonyl chlorides with aromatic compounds in the presence of a catalytic amount of dichlorotris(triphenylphosphine)ruthenium(II) were found to give perfluoroalkylated compounds in good yield.

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