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67253-47-8

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67253-47-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 67253-47-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,2,5 and 3 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 67253-47:
(7*6)+(6*7)+(5*2)+(4*5)+(3*3)+(2*4)+(1*7)=138
138 % 10 = 8
So 67253-47-8 is a valid CAS Registry Number.

67253-47-8Relevant articles and documents

Enantioselective cross-coupling of meso -epoxides with aryl halides

Zhao, Yang,Weix, Daniel J.

supporting information, p. 3327 - 3340 (2015/03/30)

The first enantioselective cross-electrophile coupling of aryl bromides with meso-epoxides to form trans-β-arylcycloalkanols is presented. The reaction is catalyzed by a combination of (bpy)NiCl2 and a chiral titanocene under reducing conditions. Yields range from 57 to 99% with 78-95% enantiomeric excess. The 30 examples include a variety of functional groups (ether, ester, ketone, nitrile, ketal, trifluoromethyl, sulfonamide, sulfonate ester), both aryl and vinyl halides, and five- to seven-membered rings. The intermediacy of a carbon radical is strongly suggested by the conversion of cyclooctene monoxide to an aryl [3.3.0]bicyclooctanol.

Enzymatic kinetic resolution of organochalcogenides in supercritical CO2

Gariani, Rogério A.,Luengo, Fernando A.G.,Vale, Luiz A.S.,Bazito, Reinaldo C.,Comasseto, Jo?o V.

supporting information; experimental part, p. 3336 - 3338 (2011/06/28)

1-(Phenylthio)-, 1-(phenylseleno)- and 1-(phenyltelluro)-propan-2-ol were efficiently resolved by CAL-B in sc-CO2.

Stereoinversion of arylethanols by Geotrichum candidum

Nakamura, Kaoru,Fujii, Mikio,Ida, Yoshiteru

, p. 3147 - 3153 (2007/10/03)

Aromatic and aliphatic racemic alcohols were converted to the corresponding optically active alcohols in high yield with excellent enantioselectivities by the use of Geotrichum candidum IFO 5767.

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