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106943-05-9

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106943-05-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 106943-05-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,6,9,4 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 106943-05:
(8*1)+(7*0)+(6*6)+(5*9)+(4*4)+(3*3)+(2*0)+(1*5)=119
119 % 10 = 9
So 106943-05-9 is a valid CAS Registry Number.

106943-05-9Downstream Products

106943-05-9Relevant 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 (2007/10/02)

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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