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191476-68-3

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191476-68-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191476-68-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,4,7 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 191476-68:
(8*1)+(7*9)+(6*1)+(5*4)+(4*7)+(3*6)+(2*6)+(1*8)=163
163 % 10 = 3
So 191476-68-3 is a valid CAS Registry Number.

191476-68-3Downstream Products

191476-68-3Relevant articles and documents

Synthesis of alkylidenecyclopropanes via thermal cycloreversion of α-spirocyclopropyl-β-lactones

Danheiser, Rick L.,Lee, Thomas W.,Menichincheri, Maria,Brunelli, Steven,Nishiuchi, Masaki

, p. 469 - 470 (2007/10/03)

An efficient two-step synthesis of alkylidenecyclopropanes is reported based on the addition of metallated cyclopropyl thiol esters to carbonyl compounds. Thermolysis of the resulting α-spirocyclopropyl-β-lactones at 105-150°C induces thermal [2+2] cycloreversion to furnish alkylidenecyclopropanes in good yield.

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