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1138-92-7

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1138-92-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1138-92-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,1,3 and 8 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1138-92:
(6*1)+(5*1)+(4*3)+(3*8)+(2*9)+(1*2)=67
67 % 10 = 7
So 1138-92-7 is a valid CAS Registry Number.

1138-92-7Relevant articles and documents

Convenient and Efficient Diastereoselective Preparation of Functionalized Z-Alkenyl Sulfides

Doroszuk, Justyna,Musiejuk, Mateusz,Ponikiewski, ?ukasz,Witt, Dariusz

, p. 6333 - 6337 (2018)

We have developed an efficient and convenient regio- and stereoselective reduction of the alkynyl sulfides with pinacolborane in the presence of copper(I) chloride to produce (Z)-alkenyl sulfides in good and very good yields. The functionalized alkynyl sulfides are readily available based on the reaction of lithium acetylides with thiotosylates under mild conditions.

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Croxall et al.

, p. 4275 (1950)

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Regioselective hydrothiolation of terminal acetylene catalyzed by magnetite (Fe3O4) nanoparticles

Rocha, Manuela S. T.,Rafique, Jamal,Saba, Sumbal,Azeredo, Juliano B.,Back, Davi,Godoi, Marcelo,Braga, Antonio L.

supporting information, p. 291 - 298 (2017/02/10)

Herein, we report a new and solvent-free methodology for the preparation of vinyl thioethers from terminal alkynes and thiols, using magnetite (Fe3O4) nanoparticles as a recyclable catalyst. With this greener method, the desired viny

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