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13426-49-8

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13426-49-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13426-49-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,2 and 6 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 13426-49:
(7*1)+(6*3)+(5*4)+(4*2)+(3*6)+(2*4)+(1*9)=88
88 % 10 = 8
So 13426-49-8 is a valid CAS Registry Number.
InChI:InChI=1/C9H10O2/c1-6(10)11-9-7-2-3-8(9)5-4-7/h2-5,7-9H,1H3

13426-49-8Relevant articles and documents

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Bueldt, Eggert,Debaerdemaeker, Tony,Friedrichsen, Willy

, p. 267 - 274 (1980)

Tetrachloro-o-benzoquinone (1) reacts as heterodiene with 7-acetoxyquadricyclane (3) to give 4 and 5 and as electron deficient monocarbonyl compound to give 6. 1:2-adducts (8, 9) were also isolated, which presumably result from a primarily formed homodiene adduct (13) through a consecutive reaction with 3. The structures of 8 and9 have been identified by X-ray analysis.

Richey,Buckley

, p. 3057 (1963)

Matrisciano,Snyder

, p. 490,491 (1971)

Tandem Ring-Opening–Ring-Closing Metathesis for Functional Metathesis Catalysts

Nagarkar, Amit A.,Yasir, Mohammad,Crochet, Aurelien,Fromm, Katharina M.,Kilbinger, Andreas F. M.

, p. 12343 - 12346 (2016/10/13)

Use of a tandem ring-opening–ring-closing metathesis (RORCM) strategy for the synthesis of functional metathesis catalysts is reported. Ring opening of 7-substituted norbornenes and subsequent ring-closing metathesis forming a thermodynamically stable 6-membered ring lead to a very efficient synthesis of new catalysts from commercially available Grubbs’ catalysts. Hydroxy functionalized Grubbs’ first- as well as third-generation catalysts have been synthesized. Mechanistic studies have been performed to elucidate the order of attack of the olefinic bonds. This strategy was also used to synthesize the ruthenium methylidene complex.

COMPOSITIONS AND METHODS FOR QUADRICYCLANE MODIFICATION OF BIOMOLECULES

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Paragraph 0301, (2013/09/26)

The present disclosure features a strain-promoted [2+2+2] reaction that can be carried out under physiological conditions. In general, the reaction involves reacting a pi-electrophile with a low lying LUMO with a quadricyclane on a biomolecule, generating

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