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291313-34-3

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291313-34-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 291313-34-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,9,1,3,1 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 291313-34:
(8*2)+(7*9)+(6*1)+(5*3)+(4*1)+(3*3)+(2*3)+(1*4)=123
123 % 10 = 3
So 291313-34-3 is a valid CAS Registry Number.

291313-34-3Relevant articles and documents

New oxidative transformations of phenolic and indolic oxazolines: An avenue to useful azaspirocyclic building-blocks

Braun, Norbert A.,Ousmer, Malika,Bray, Jonathan D.,Bouchu, Denis,Peters, Karl,Peters, Eva-Maria,Ciufolini, Marco A.

, p. 4397 - 4408 (2007/10/03)

The oxidative cyclization of a phenolic amide to a spirolactam has long been regarded as an 'impossible' reaction, because exposure of the substrates to a variety of oxidants results in formation of spirolactones with consequent loss of the amine segment. We recently communicated that this heretofore unknown transformation may be achieved by oxidation of oxazoline analogues of phenolic and indolic amides. Herein, we provide full details of our work.

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