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13493-97-5

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13493-97-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13493-97-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,9 and 3 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 13493-97:
(7*1)+(6*3)+(5*4)+(4*9)+(3*3)+(2*9)+(1*7)=115
115 % 10 = 5
So 13493-97-5 is a valid CAS Registry Number.
InChI:InChI=1/C6H6O3/c7-5-8-4-6-2-1-3-9-6/h1-3,5H,4H2

13493-97-5Relevant articles and documents

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Edwards,Beeves

, p. 1583 (1942)

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N-Heterocyclic Carbene Catalyzed Transformylation

Fernando, Jared E. M.,Levens, Alison,Moock, Daniel,Lupton, David W.

, p. 3505 - 3510 (2017/07/27)

The N-heterocyclic carbene (NHC) catalyzed transformylation has been developed for the conversion of 1°, 2°, and 3° alcohols to the corresponding formates. The reaction employs low catalyst loadings and methyl formate as the formyl transfer reagent. The scope of the reaction is broad with 23 examples reported with good yields (59-96%). The reaction is insensitive to common nitrogen and oxygen protecting groups and can be achieved in the presence of a number of heterocycles.

Polyvinylpolypyrrolidoniume tribromide as new and metal-free catalyst for the formylation and trimethylsilylation of hydroxyl group

Ghorbani-Choghamarani, Arash,Goudarziafshar, Hamid,Zamani, Parisa

scheme or table, p. 1207 - 1210 (2012/01/05)

Trimethylsilylation of alcohols was achieved using 1,1,1,3,3,3- hexamethyldisilazane (HMDS) as silylating agent, in the presence of polyvinylpolypyrrolidoniume tribromide in acetonitrile at room temperature. Also a variety of alcohols were converted into alkyl formates by ethyl formate and a catalytic amount of polyvinylpolypyrrolidoniume tribromide under solvent free conditions at room temperature.

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