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169129-44-6

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169129-44-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 169129-44-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,1,2 and 9 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 169129-44:
(8*1)+(7*6)+(6*9)+(5*1)+(4*2)+(3*9)+(2*4)+(1*4)=156
156 % 10 = 6
So 169129-44-6 is a valid CAS Registry Number.

169129-44-6Relevant articles and documents

Synthesis and reactivity of a 3-vinylidenepiperidine as a model study of α-allenic amines

Solé, Daniel,García-Rubio, Silvina,Bosch, Joan,Bonjoch, Josep

, p. 2415 - 2424 (2007/10/03)

4-Acetonyl-1-benzyl-3-vinylidenepiperidine (8), prepared by cyclization of propargylic silane (7), was used as a model to study the usefulness of the allene moiety as a precursor of the two-carbon chain present in the piperidine ring of Strychnos alkaloids.

Tandem Michael reactions for the construction of pyrrolidine and piperidine ring systems

Barco,Benetti,Casolari,Pollini,Spalluto

, p. 3039 - 3042 (2007/10/02)

A convergent one-pot construction of disubstituted pyrrolidine and piperidine frameworks has been accomplished through a simple protocol involving intermolecular conjugate addition of a nitrogen nucleophile to an electrophilic olefin followed by intramolecular trapping of the generated enolate by a built-in α,β-unsaturated acceptor.

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