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26928-23-4

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26928-23-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 26928-23-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,6,9,2 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 26928-23:
(7*2)+(6*6)+(5*9)+(4*2)+(3*8)+(2*2)+(1*3)=134
134 % 10 = 4
So 26928-23-4 is a valid CAS Registry Number.

26928-23-4Relevant articles and documents

Stereodivergent hydrodefluorination of: Gem -difluoroalkenes: Selective synthesis of (Z)- and (E)-monofluoroalkenes

Kojima, Ryoto,Kubota, Koji,Ito, Hajime

supporting information, p. 10688 - 10691 (2017/10/06)

We have developed a novel approach for the stereodivergent hydrodefluorination of gem-difluoroalkenes using copper(i) catalysts to obtain stereodefined monofluoroalkenes. Both (Z)- and (E)-terminal monofluoroalkenes were obtained by the hydrodefluorination of gem-difluoroalkenes in the presence of copper(i) catalysts and diboron or hydrosilane, respectively, with high stereoselectivity. DFT calculations were conducted to elucidate the stereoselectivity.

Synthesis of monofluoroalkenes via Julia-Kocienski reaction

Prakash, G.K. Surya,Shakhmin, Anton,Zibinsky, Mikhail,Ledneczki, Istvan,Chacko, Sujith,Olah, George A.

experimental part, p. 1192 - 1197 (2011/02/22)

Monofluoromethyl 3,5-bis(trifluoromethyl)phenyl sulfone 1 was synthesized and employed in Julia-Kocienski fluoroolefination reaction with various ketones and aldehydes. Optimal reaction conditions were found to be the treatment of substrates with KOH or C

A Novel and Efficient Synthesis of Fluoromethyl Phenyl Sulphone and Its Use as a Fluoromethyl Wittig Equivalent

Inbasekaran, Muthiah,Peet, Norton P.,McCarthy James R.,LeTourneau, Michael E.

, p. 678 - 679 (2007/10/02)

A new synthesis of fluoromethyl phenyl sulphone (2) and the reaction of its conjugate base (3) with carbonyl compounds provides β-fluoro-alcohols (5), which are utilized to prepare terminal vinyl fluorides (8) via α-fluoro-α,β-unsaturated sulphones (6).

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