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504433-36-7

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504433-36-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 504433-36-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,0,4,4,3 and 3 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 504433-36:
(8*5)+(7*0)+(6*4)+(5*4)+(4*3)+(3*3)+(2*3)+(1*6)=117
117 % 10 = 7
So 504433-36-7 is a valid CAS Registry Number.

504433-36-7Relevant articles and documents

Multi-component reactions of 2-isopropylidene-aziridines: Application to the synthesis of enantiopure neopentylamines

Hayes, Jerome F.,Shipman, Michael,Slawin, Alexandra M. Z.,Twin, Heather

, p. 243 - 250 (2007/10/03)

Neopentylamines {(1S,1'S)-7a,b} are made from (S)-2-isopropylidene-1-(1-phenylethyl)aziridine (4) in 73% and 56% yields respectively, and as single diastereomers, using a multi-component reaction (M-CR). The structure of (1S,1'S)-7a is confirmed by X-Ray crystallography. Cleavage of the chiral control element {(S)-PhMeCH} from 7a yields neopentyl type amine (8·HC1) (≥95%ee). Further experiments reveal the scope and limitations of this M-CR.

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