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56031-82-4

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56031-82-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56031-82-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,0,3 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 56031-82:
(7*5)+(6*6)+(5*0)+(4*3)+(3*1)+(2*8)+(1*2)=104
104 % 10 = 4
So 56031-82-4 is a valid CAS Registry Number.

56031-82-4Relevant articles and documents

Traceless Silylation of β-C(sp3)-H Bonds of Alcohols via Perfluorinated Acetals

Bunescu, Ala,Butcher, Trevor W.,Hartwig, John F.

, p. 1502 - 1507 (2018/02/09)

We report the silylation of primary C-H bonds located β to secondary and tertiary alcohols by exploiting perfluorinated esters as traceless directing groups. The conversion of a secondary or tertiary alcohol to a perfluoroalkyl ester and conversion of the ester to the corresponding silyl acetals by hydrosilylation allows for selective β-C(sp3)-H silylation catalyzed by the combination of [Ir(cod)OMe]2 and Me4Phen (3,4,7,8-tetramethyl-1,10-phenanthroline) to form 6-membered dioxasilinane. Tamao-Fleming oxidation of these dioxasilinane leads to 1,2 diols. The developed sequence was applied to a series of natural products containing hydroxyl groups.

Superacidic cyclization of ω-hydroxygeraniol diacetate and ω-hydroxygeraniol benzyl ether acetate

Kulcitki,Ungur,Deleanu,Vlad

, p. 136 - 138 (2007/10/03)

Low-temperature superacidic cyclization of (E,E)-3,7-dimethylocta-2,6-diene-1,8-diol (ω-hydroxygeraniol) diacetate and (E,E)-8-acetoxy-1-benzyloxy-3,7-dimethylocta-2,6-diene leads to the same mixtures of two diastereomeric 9-acetoxy-8-hydroxy-p-menth-1-enes epimeric at the C(8) atom.

Halogenated Terpenoids. XXII. Uroterpenol. The C8 Stereochemistry

Carman, Raymond M.,Greenfield, Kay L.,Robinson, Ward T.

, p. 21 - 30 (2007/10/02)

The two diastereoisomeric p-menth-1-ene-8,9-diols (uroterpenols) have been separated and crystallized.A crystallographic analysis of a dibromo derivative enables relative and absolute configurations to be assigned throughout the series.

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