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220446-69-5

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220446-69-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220446-69-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,4,4 and 6 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 220446-69:
(8*2)+(7*2)+(6*0)+(5*4)+(4*4)+(3*6)+(2*6)+(1*9)=105
105 % 10 = 5
So 220446-69-5 is a valid CAS Registry Number.

220446-69-5Relevant articles and documents

Synthesis of 5-phenyl 2-functionalized pyrroles by amino Heck and Tandem amino Heck carbonylation reactions

Zaman, Shazia,Kitamura, Mitsuru,Abell, Andrew D.

, p. 624 - 626 (2008/03/12)

2-Methyl-, 2-(methoxycarbonyl)methyl-, and 2,2-[(ethoxycarbonyl) (methoxycarbonyl)]methyl-5-phenylpyrroles are prepared from the corresponding 3-butynyl and 4-(methoxycarbonyl)-3-butynyl phenyl ketone O-pentafluorobenzoyl oximes by amino Heck cyclization

Synthesis of pyrrole derivatives by palladium-catalyzed cyclization of γ,δ-unsaturated ketone o-pentafluorobenzoyloximes

Tsutsui, Hironori,Kitamura, Mitsuru,Narasaka, Koichi

, p. 1451 - 1460 (2007/10/03)

Various pyrrole derivatives are synthesized from γ,δ-unsaturated ketone O-pentafluorobenzoyloximes by treatment with catalytic amounts of Pd(PPh3)4 and triethylamine via alkylideneaminopalladium(II) intermediates generated by oxidative addition of the oximes to the Pd(0) complex.

Synthesis of pyrrole derivatives by the heck-type cyclization of γ,δ-unsaturated ketone O-pentafluorobenzoyloximes

Tsutsui, Hironori,Narasaka, Koichi

, p. 45 - 46 (2007/10/03)

Substituted pyrroles are synthesized from γδ-unsaturated ketone O-pentafluorobenzoyloximes by the intramolecular Heck-type amination of the olefinic moiety catalyzed by Pd(PPh3)4.

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