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23451-78-7

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23451-78-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 23451-78-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,4,5 and 1 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 23451-78:
(7*2)+(6*3)+(5*4)+(4*5)+(3*1)+(2*7)+(1*8)=97
97 % 10 = 7
So 23451-78-7 is a valid CAS Registry Number.

23451-78-7Relevant articles and documents

Synthesis of Fluoroalkyl Sulfides via Additive-Free Hydrothiolation and Sequential Functionalization Reactions

Sunagawa, Denise E.,Ishida, Naoyoshi,Iwamoto, Hiroaki,Ohashi, Masato,Fruit, Corinne,Ogoshi, Sensuke

supporting information, p. 6015 - 6024 (2021/05/04)

A modular synthetic method, involving a hydrothiolation, silylation, and fluoroalkylation, for the construction of highly functionalized fluoroalkyl sulfides has been developed. The use of aprotic polar solvents enables the additive-free chemoselective hydrothiolation of tetrafluoroethylene, trifluorochloroethylene, and hexafluoropropene with various thiols. The stepwise functionalization reactions convert the hydrothiolated intermediates into the tetrafluoroethyl sulfides in high efficiency. The method avoids the use of the environmental pollutant Halon-2402, which was employed as a building block in a reported synthetic route.

SYNTHESIS OF FLUORINATED VINYL SULFIDES AND SELENIDES

Piettre, S.,de Cock, Ch.,Merenyi, R.,Viehe, H.G.

, p. 4309 - 4320 (2007/10/02)

The reaction between fluoroolefins 1 and 10e and benzenesulfenyl or selenenyl halides 6 is found to be solvent-dependent and gives in most cases predominantly the regioisomer 8.The structure of adducts 8 and 9 are ascertained by 1H, 19F and 77Se NMR spectroscopy.Compounds 8 are easily halogenated and treatment of the products with magnesium or zinc leads to the desired polyfluorovinyl sulfides and selenides 10.A second route of synthesis of these reagents results from the reaction of fluorovinyllithio-derivatives 11 with benzenesulfenyl or selenenyl halides.Olefin 10e is also obtained from the selenoacetal 8t of trifluoroacetaldehyde.

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