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42113-39-3

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42113-39-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42113-39-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,1,1 and 3 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 42113-39:
(7*4)+(6*2)+(5*1)+(4*1)+(3*3)+(2*3)+(1*9)=73
73 % 10 = 3
So 42113-39-3 is a valid CAS Registry Number.

42113-39-3Relevant articles and documents

Direct conversion of silyl ethers or tetrahydropyranyl ethers into the corresponding diphenylmethyl ethers

Suzuki,Kobayashi,Noda,Oriyama

, p. 2761 - 2766 (2001)

Direct conversion of alcohol silyl ethers into the corresponding diphenylmethyl (DPM) ethers can be easily performed by the reaction with diphenylmethyl formate in the presence of a catalytic amount of trimethylsilyl trifluoromethanesulfonate. By the additional use of triethylsilane, tetrahydropyranyl ethers can be also converted into the corresponding DPM ethers.

Direct and efficient synthesis of unsymmetrical ethers from alcohols catalyzed by Fe(HSO4)3 under solvent-free conditions

Moghadam, Bashir Nazari,Akhlaghinia, Batool,Rezazadeh, Soodabeh

, p. 1487 - 1501 (2016/04/26)

Highly efficient Fe(HSO4)3 catalyzed etherification of primary, secondary and tertiary benzylic alcohols with primary and secondary aliphatic alcohols is reported. The reaction affords unsymmetrical benzyl ethers in good to excellent yields under solvent-free conditions.

Visible-light-promoted conversion of alkyl benzyl ether to alkyl ester or alcohol via O-α-sp3 C-H cleavage

Lu, Ping,Hou, Tianyuan,Gu, Xiangyong,Li, Pixu

, p. 1954 - 1957 (2015/04/27)

A mild and high-yielding visible-light-promoted conversion of alkyl benzyl ethers to the alkyl esters or alkyl alcohols was developed. Mechanistic studies provided evidence for a radical chain reaction involving the homolytic cleavage of O-α-sp3 C-H bonds in the substrate as one of the propagation steps. We propose that α-bromoethers are key intermediates in the transformation.

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