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731-00-0

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731-00-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 731-00-0 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 7,3 and 1 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 731-00:
(5*7)+(4*3)+(3*1)+(2*0)+(1*0)=50
50 % 10 = 0
So 731-00-0 is a valid CAS Registry Number.
InChI:InChI=1/C11H8F6O2/c12-10(13,14)9(19,11(15,16)17)6-8(18)7-4-2-1-3-5-7/h1-5,19H,6H2

731-00-0Relevant articles and documents

Efficient and convenient entry to β-hydroxy-β-trifluoromethyl-β-substituted ketones and 2,6-disubstituted 4-trifluoromethylpyridines based on the reaction of trifluoromethyl ketones with enamines or imines

Funabiki,Isomura,Yamaguchi,Hashimoto,Matsunaga,Shibata,Matsui

, p. 2578 - 2582 (2001)

The reactions of trifluoromethyl ketones with enamines or imines are described. The reaction of trifluoroacetone with enamines or imines followed by hydrolysis gave the corresponding β-hydroxyβ-trifluoromethyl-β-methyl ketones in good yields. The reaction

Fluorinated alkoxy-imino catalyst components

-

Page/Page column 4-5, (2008/06/13)

This invention relates to fluorinated alkoxy-imino metallic complexes and their use in catalyst systems for the polymerisation or oligomerisation of ethylene and alpha-olefins.

The cross-aldol reaction of hexafluoroacetone (HFA) with ketones catalyzed by an acid

Komata, Takeo,Matsunaga, Kei,Hirotsu, Yoshiki,Akiba, Shinya,Ogura, Katsuyuki

, p. 902 - 909 (2008/03/14)

The cross-aldol reactions of hexafluoroacetone (HFA) and ketones using an acid catalyst are reported. When concentrated sulfuric acid was employed as the catalyst, HFA reacted regioselectively with various ketones at 50-100 °C to give the aldol adducts (6) in good yields. The reaction is initiated by an acid-catalyzed transformation of the ketone into the corresponding enol that reacts with HFA. The obtained adducts (6) can be reduced with hydrogen under a Ru/C catalyst to lead to the corresponding fluorine-containing diols (13).

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