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78998-77-3

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78998-77-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 78998-77-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,8,9,9 and 8 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 78998-77:
(7*7)+(6*8)+(5*9)+(4*9)+(3*8)+(2*7)+(1*7)=223
223 % 10 = 3
So 78998-77-3 is a valid CAS Registry Number.

78998-77-3Downstream Products

78998-77-3Relevant articles and documents

Halogen and chalcogen cation pools stabilized by DMSO. Versatile reagents for alkene difunctionalization

Ashikari, Yosuke,Shimizu, Akihiro,Nokami, Toshiki,Yoshida, Jun-Ichi

, p. 16070 - 16073 (2013)

Halogen and chalcogen cations (X+ = Br+, I +, ArS+, and ArSe+) were generated by low-temperature electrochemical oxidation in the presence of dimethyl sulfoxide (DMSO) and were accumulated in the solution. DFT calculations indicated that DMSO stabilizes these cations by coordination. The complexes of I+ with one and two DMSO molecules were observed by cold-spray-ionization MS analyses. The stability of the resulting cation pools of X+ increased in the order of Br+ + + +, which could be explained in terms of the electronegativity of X. The cation pools served as versatile reagents for organic synthesis; the reactions with alkenes gave β-X-substituted alkoxysulfonium ions, which were converted to the corresponding carbonyl compounds by the treatment with triethylamine, whereas the treatment with methanol gave the corresponding alcohols. The reactions with aminoalkenes and 1,6-dienes gave the cyclized products.

SELECTIVE OXIDATION OF HYDROXY GROUPS OF PHENYLTHIO AND PHENYLSELENO ALCOHOLS

Shimizu, Makoto,Urabe, Hirokazu,Kuwajima, Isao

, p. 2183 - 2186 (2007/10/02)

Various kinds of alcohols bearing phenylthio or phenylseleno moiety were converted into the corresponding carbonyl compounds in good to excellent yields by treating with dimesityl diselenide and tert-butyl hydroperoxide.

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