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70422-07-0

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70422-07-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70422-07-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,4,2 and 2 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 70422-07:
(7*7)+(6*0)+(5*4)+(4*2)+(3*2)+(2*0)+(1*7)=90
90 % 10 = 0
So 70422-07-0 is a valid CAS Registry Number.

70422-07-0Relevant articles and documents

SYNTHESIS OF FLUORINATED α-AMINO KETONES PART I: α-BENZAMIDOALKYL MONO- DI- AND TRIFLUOROMETHYL KETONES

Kolb, Michael,Barth, Jacqueline,Neises, Bernhard

, p. 1579 - 1582 (1986)

2-Phenyl-5(4H)-oxazolones, obtained from α-amino acids, are reacted with di- and trifluoro acetic anhydride by a modified Dakin-West procedure to yield in a one-pot reaction α-benzamidoalkyl-di- and trifluoromethyl ketones in good yields.The monofluoromethyl analogues were also prepared from α-amino acids, however the use of the highly toxic fluoroacetic anhydride was avoided.The key step is the halogen exchange reaction on the corresponding bromomethyl ketone.

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