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77087-78-6

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77087-78-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77087-78-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,0,8 and 7 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 77087-78:
(7*7)+(6*7)+(5*0)+(4*8)+(3*7)+(2*7)+(1*8)=166
166 % 10 = 6
So 77087-78-6 is a valid CAS Registry Number.

77087-78-6Relevant articles and documents

α-Amino Acids as Nucleophilic Acyl Equivalents, IV. Synthesis of Symmetrical Ketones by Means of 2-Phenyl-2-oxazolin-5-one

Lohmar, Rainald,Steglich, Wolfgang

, p. 3706 - 3715 (2007/10/02)

2-Phenyl-2-oxazolin-5-one (2), itself easily derivable from hippuric acid (1), on reaction with allyl, benzyl or phenacyl halides undergoes 4,4-disubstitution, if the reaction is conducted in dipolar aprotic solvents in presence of weak bases.Hydrolysis of the resulting oxazolinones 3 leads to α,α-dialkylaed hippuric acids 4, which may be oxidized to symmetrical ketones 5 by means of lead tetraacetate.

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