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1245633-05-9

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1245633-05-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1245633-05-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,5,6,3 and 3 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1245633-05:
(9*1)+(8*2)+(7*4)+(6*5)+(5*6)+(4*3)+(3*3)+(2*0)+(1*5)=139
139 % 10 = 9
So 1245633-05-9 is a valid CAS Registry Number.

1245633-05-9Downstream Products

1245633-05-9Relevant articles and documents

Asymmetric synthesis of deuterated and fluorinated aromatic α,α-disubstituted amino acid derivatives

Hartmann, Caroline E.,Baumann, Thomas,Baechle, Michael,Braese, Stefan

experimental part, p. 1341 - 1349 (2010/10/21)

We herein present organocatalytic approaches to synthesize fluorinated and deuterated α-substituted phenylglycine derivatives. Whereas the addition of diethyl azodicarboxylate to fluorinated α-substituted aldehydes furnishes chiral non-racemic compounds, the use of chloramine-T as a nitrogen source represents a rapid access to sulfamidated fluorinated amino acid precursors. Additionally, further functionalization was achieved through the palladium-catalyzed coupling of a p-bromosubstituted aldehyde with a range of fluorine or deuterium-containing boronic acids. Oxidation of the aldehyde function and cleavage of the protection group of the nitrogen give way to the free fluorinated unnatural amino acids.

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