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573703-12-5

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573703-12-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 573703-12-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,7,3,7,0 and 3 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 573703-12:
(8*5)+(7*7)+(6*3)+(5*7)+(4*0)+(3*3)+(2*1)+(1*2)=155
155 % 10 = 5
So 573703-12-5 is a valid CAS Registry Number.

573703-12-5Relevant articles and documents

Dimethylzinc-mediated addition of alkenylzirconocenes to α-keto and α-imino esters

Wipf, Peter,Stephenson, Corey R. J.

, p. 2449 - 2452 (2007/10/03)

(Matrix presented) Hydrozirconation of alkynes followed by in situ transmetalation to dimethylzinc and 1,2-addition to activated ketones and N-diphenylphosphinoylimines leads to tertiary allylic alcohols and amines in high overall yield. With 8-phenylmenthol as the chiral auxiliary, si-face attack proceeds in good to excellent diastereoselectivities.

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