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1158827-44-1

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1158827-44-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1158827-44-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,5,8,8,2 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1158827-44:
(9*1)+(8*1)+(7*5)+(6*8)+(5*8)+(4*2)+(3*7)+(2*4)+(1*4)=181
181 % 10 = 1
So 1158827-44-1 is a valid CAS Registry Number.

1158827-44-1Relevant articles and documents

Halofluorination of N-protected α,β-dehydro-α-amino acid esters—A convenient synthesis of α-fluoro-α-amino acid derivatives

Ulbrich, Dirk,Daniliuc, Constantin G.,Haufe, Günter

, p. 65 - 75 (2016)

N-protected dehydroamino acid methyl esters have been converted to α-fluoro-β-halo amino acid derivatives under halofluorination reaction conditions. The influences of the nitrogen protecting group of the substrates and of the halonium electrophile on the reaction outcome and the stability of the obtained products have been studied. Furthermore, reduction of the halogen substituent (Cl or Br) under radical conditions provided a possibility for follow-up reactions. Nucleophilic substitution reactions, however, failed.

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