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147597-80-6

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147597-80-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 147597-80-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,7,5,9 and 7 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 147597-80:
(8*1)+(7*4)+(6*7)+(5*5)+(4*9)+(3*7)+(2*8)+(1*0)=176
176 % 10 = 6
So 147597-80-6 is a valid CAS Registry Number.

147597-80-6Relevant articles and documents

Intramolecular and intermolecular Mn(III)-induced carbon monoxide trapping reactions of alkynes with malonate and cyano ester units

Okuro, Kazumi,Alper, Howard

, p. 5312 - 5315 (1996)

Intra- and intermolecular carbon monoxide trapping reactions of alkynes with malonates and cyano esters were developed using a Mn(III)-induced oxidative system. Phenylacetylene was treated with diethyl ethylmalonate in the presence of Mn(OAc)3·H2O, in AcOH-CH3CN (1:1) under carbon monoxide, affording (Z)-4,4-dicarbethoxy-2-phenyl-2-hexenoic acid. Similarly, intramolecular reactions of 4-alkynylmalonates and cyanoacetates proceeded regio- and stereoselectively under the same conditions to afford the corresponding methylenecycloalkanecarboxylic acids in moderate yields. The reaction involves carbon monoxide trapping of vinyl radicals which are formed by the addition of malonate or cyanoacetate radicals induced by Mn(III) to alkynes.

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