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220130-74-5

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220130-74-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220130-74-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,1,3 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 220130-74:
(8*2)+(7*2)+(6*0)+(5*1)+(4*3)+(3*0)+(2*7)+(1*4)=65
65 % 10 = 5
So 220130-74-5 is a valid CAS Registry Number.

220130-74-5Relevant articles and documents

TITANIUM COMPOUND AND PROCESS FOR ASYMMETRIC CYANATION OF IMINES

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Page/Page column 36; 40, (2008/12/04)

The present invention relates to titanium catalysts for asymmetric synthesis reactions produced by bringing a reaction mixture obtained by contacting water and a titanium alkoxide into contact with an optically active ligand represented by the general formula (a), wherein R1, R2, R3, and R4 are independently a hydrogen atom, an alkyl group, or the like, and A* represents a group with two or more carbon atoms having an asymmetric carbon atom or axial asymmetry. The invention further relates to a process for asymmetric cyanation of imines, wherein the process comprises reacting an imine with a cyanating agent in the presence of the titanium catalyst.

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