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111029-28-8

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111029-28-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 111029-28-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,1,0,2 and 9 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 111029-28:
(8*1)+(7*1)+(6*1)+(5*0)+(4*2)+(3*9)+(2*2)+(1*8)=68
68 % 10 = 8
So 111029-28-8 is a valid CAS Registry Number.

111029-28-8Downstream Products

111029-28-8Relevant articles and documents

Doubly activated cyclopropanes as synthetic precursors for the preparation of 4-nitro- and 4-cyano-dihydropyrroles and pyrroles

Wurz, Ryan P.,Charette, Andre B.

, p. 2313 - 2316 (2005)

(Chemical Equation Presented) 1-Nitro- and 1-cyano-cyclopropyl ketones have been prepared in an expedient manner from cyclopropanation reactions of alkenes by diazo compounds or in situ-generated phenyliodonium ylides catalyzed by Rh(II) carboxylates. The doubly activated cyclopropanes were used as synthetic precursors for the regiospecific synthesis of 4-nitro- and 4-cyano- dihydropyrroles upon treatment with primary amines. Oxidation of the dihydropyrroles with DDQ allows rapid access to densely functionalized pyrroles.

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