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119449-52-4

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119449-52-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 119449-52-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,9,4,4 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 119449-52:
(8*1)+(7*1)+(6*9)+(5*4)+(4*4)+(3*9)+(2*5)+(1*2)=144
144 % 10 = 4
So 119449-52-4 is a valid CAS Registry Number.

119449-52-4Relevant articles and documents

A CONVENIENT SYNTHESIS OF SUBSTITUTED QUINOLINES BY THERMAL OR PHOTOCHEMICAL ELECTROCYCLIC REARRANGEMENT OF o-VINYL IMIDATES UNDER NON-ACIDIC CONDITIONS.

Qiang, Lin Guo,Baine, Neil H.

, p. 3517 - 3520 (1988)

Imidates 4a-e, Table 1, were prepared by treatment of amides 3a-e with Et3O(1+)BF4(1-) in the presence of excess Na2HPO4.These underwent smooth rearrangement to quinolines 5a-e by thermal or photochemical activation.

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