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122833-59-4

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122833-59-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 122833-59-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,2,8,3 and 3 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 122833-59:
(8*1)+(7*2)+(6*2)+(5*8)+(4*3)+(3*3)+(2*5)+(1*9)=114
114 % 10 = 4
So 122833-59-4 is a valid CAS Registry Number.

122833-59-4Downstream Products

122833-59-4Relevant articles and documents

A Catalytic Enantioselective Reaction Using a C2-Symmetric Disulfonamide as a Chiral Ligand: Alkylation of Aldehydes Catalyzed by Disulfonamide-Ti(O-i-Pr)4-Dialkyl Zinc System

Takahashi, Hideyo,Kawakita, Takashi,Ohno, Masaji,Yoshioka, Masato,Kobayashi, Susumu

, p. 5691 - 5700 (1992)

Excellent enantioselective alkylation of aldehydes with dialkylzinc has been developed.This methodology is based on the concept of modifying the Lewis acid with a C2-symmetric, electron-withdrawing disulfonamide.The chiral Lewis acid catalysts used in the present study are the titanium complexes, prepared in-situ from disulfonamide and Ti(O-i-Pr)4.Key Words: Chiral disulfonamide; chiral titanium complex; enantioselective alkylation; dialkyl zinc; catalytic reaction

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