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181280-07-9

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181280-07-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 181280-07-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,2,8 and 0 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 181280-07:
(8*1)+(7*8)+(6*1)+(5*2)+(4*8)+(3*0)+(2*0)+(1*7)=119
119 % 10 = 9
So 181280-07-9 is a valid CAS Registry Number.

181280-07-9Relevant articles and documents

An efficient synthesis of benzopyrano-2-isoxazolines

Lee, Jong In,Lee, Hyo San,Kim, Byeang Hyean

, p. 3201 - 3215 (1996)

A series of benzopyrono-2-isoxazoline compounds have been prepared efficiently by three-step synthesis from corresponding salicylaldehyde derivatives.

N-heterocyclic carbene-catalyzed hydroacylation of unactivated double bonds

Hirano, Keiichi,Biju, Akkattu T.,Piel, Isabel,Glorius, Frank

supporting information; experimental part, p. 14190 - 14191 (2010/02/15)

(Chemical Equation Presented) An intramolecular N-heterocyclic carbene (NHC)-catalyzed hydroacylation of unactivated double bonds is reported. Systematic variation of the catalyst structure revealed an N- mesitylthiazolylidene annulated with a seven-membered ring to be especially reactive. This NHC enables a unique C-C bond-forming reaction to afford substituted chroman-4-ones in moderate to excellent yields, even ones containing all-carbon quaternary centers.

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