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121758-27-8

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121758-27-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121758-27-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,7,5 and 8 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 121758-27:
(8*1)+(7*2)+(6*1)+(5*7)+(4*5)+(3*8)+(2*2)+(1*7)=118
118 % 10 = 8
So 121758-27-8 is a valid CAS Registry Number.

121758-27-8Downstream Products

121758-27-8Relevant articles and documents

Fe/Cr- and Co/Cr-mediated catalytic asymmetric 2-haloallylations of aldehydes

Kurosu, Michio,Lin, Mei-Huey,Kishi, Yoshito

, p. 12248 - 12249 (2007/10/03)

The first example to couple aldehydes and 3-bromo-2-halopropenes in a catalytic asymmetric manner is reported. The coupling reaction is effected by the use of a chiral sulfonamide-Cr complex (prepared in situ from 1d, CrBr3, Fe(III) or from Co(II), Et3N, and Mn), TMSCl, and 2,6-lutidine. The method reported here is operationally simple and scalable, furnishing 3-halohomoallylic alcohols with a synthetically useful level of enantiomeric excess. Copyright

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