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1352558-62-3

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1352558-62-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1352558-62-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,2,5,5 and 8 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1352558-62:
(9*1)+(8*3)+(7*5)+(6*2)+(5*5)+(4*5)+(3*8)+(2*6)+(1*2)=163
163 % 10 = 3
So 1352558-62-3 is a valid CAS Registry Number.

1352558-62-3Relevant articles and documents

Inter- and intramolecular [4+2]-cycloaddition reactions with 4,4-disubstituted N -silyl-1,4-dihydropyridines as precursors for N-protonated 2-azabutadiene intermediates

Schmaunz, Cornelia E.,Mayer, Peter,Wanner, Klaus T.

, p. 1630 - 1638 (2014)

An efficient and straightforward method for the synthesis of polycyclic ring systems with a central 2-azabicyclo[2.2.2]octane unit is developed. The process is based on [4+2]-cycloaddition reactions that are performed with N-protonated 2-azabutadiene intermediates as heterodienes, generated from 4,4-disubstituted N-silyl 1,4-dihydropyridines. As dienophiles, cyclopentadiene for the intermolecular cycloaddition and an allyl moiety already attached to the 4,4-disubstituted 1,4-dihydropyridines for the intramolecular variant, are used.

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