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74063-89-1

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74063-89-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74063-89-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,0,6 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 74063-89:
(7*7)+(6*4)+(5*0)+(4*6)+(3*3)+(2*8)+(1*9)=131
131 % 10 = 1
So 74063-89-1 is a valid CAS Registry Number.

74063-89-1Relevant articles and documents

Metal nitrite: A powerful oxidizing reagent

Baidya, Mahiuddin,Yamamoto, Hisashi

supporting information; body text, p. 13880 - 13882 (2011/10/09)

An efficient and simple source of nitroso reagents and their oxidation reactions are described. The combination of a Lewis acid and a metal nitrite was applied to the oxidation of silyl enol ethers. Amino acid and peptide derivatives were easily accessed through in situ C-C bond cleavage of fully substituted silyl enol ethers upon oxidation.

Regioselective synthesis and acylation of cyclic bis-(trimethylsiloxy)- 1,3-dienes - New and versatile 1,3-dianion synthons

Langer, Peter,Schneider, Toni

, p. 497 - 500 (2007/10/03)

Cyclohexanone-derived bis-(trimethylsiloxy)-1,3-dienes were regioselectively prepared by the use of different silylating systems. These dienes represent new and versatile 1,3-dianion synthons in Lewis-acid catalyzed acylation reactions.

An Annelation Approach to the Synthesis of Eudesmane and Elemane Sesquiterpene Lactones. Total Synthesis of dl-Dihydrocallitrisin, dl-7,8-Epialantolactone, dl-7,8-Epiisoalantolactone, and dl-Atractylon

Schultz, Arthur G.,Godfrey, Jollie D.

, p. 2414 - 2428 (2007/10/02)

An annelation approach to the synthesis of eudesmane sesquiterpenes is described.The 1,6-annelation reagent α-carbomethoxy-β-methyl-γ-methylidene-Δα,β-butenolide (1) is used to construct the linear tricyclic lactone 2,5,6,7,8,8a,9,9aβ-octahydro-8aβ-methyl-2-oxonaphthofuran-3-carboxylic acid methyl ester (2).The conversion of 2 to dl-dihydrocallitrisin (3), dl-7,8-epialantolactone (4), dl-7,8-epiisoalantolactone (5), and dl-atractylon (6) is detailed.Studies directed toward synthesis of the elemane sesquiterpene lactones vernomenin and vernolepin also are presented.

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