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13491-16-2

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13491-16-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13491-16-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,4,9 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 13491-16:
(7*1)+(6*3)+(5*4)+(4*9)+(3*1)+(2*1)+(1*6)=92
92 % 10 = 2
So 13491-16-2 is a valid CAS Registry Number.

13491-16-2Relevant articles and documents

Chiral α-substituted carbonyls and alcohols from the S(N)2' displacement of cuprates on chiral carbonates: An alternative to the alkylation of chiral enolates

Spino,Beaulieu,Lafreniere

, p. 7091 - 7097 (2007/10/03)

A highly stereoselective sequence of reactions, based on the anti-selective S(N)2' addition of cuprates to allylic carbonates, transforms alkynes or alkenyl halides into carbonyls having α-chiral centers. The method, which uses menthone as a chiral auxiliary, is a useful alternative to the alkylation of chiral enolates with the added advantage of allowing for the 'alkylation' of sec- and tert-alkyl and aryl groups.

Optisch aktive α-Arylcarbonsaeuren durch kinetische Enantiomerentrennung: Pyrethroidsaeuren

Gaertner, Holger,Salz, Ulrich,Ruechardt, Christoph

, p. 166 - 167 (2007/10/02)

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Configuration Determination of (R)-(-)-1,1,2-Triphenyl-3,3-dimethylbutane and the Stereochemistry of the Reaction of Benzhydryllithium with (R)-(+)-α-Phenylneopentyl Chloride

Bright, Danielle Angrand,Mathisen, Donald E.,Zieger, Herman E.

, p. 3521 - 3524 (2007/10/02)

A three-step synthesis of optically pure (R)-(-)-1,1,2-triphenyl-3,3-dimethylbutane from (R)-(-)-α-tert-butylphenylacetic acid has been accomplished.The synthesis of α-phenylneopentyl chloroformate from optically pure (R)-(+)-1-phenyl-2,2-dimethyl-1-propa

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