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146309-04-8

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146309-04-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 146309-04-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,6,3,0 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 146309-04:
(8*1)+(7*4)+(6*6)+(5*3)+(4*0)+(3*9)+(2*0)+(1*4)=118
118 % 10 = 8
So 146309-04-8 is a valid CAS Registry Number.

146309-04-8Relevant articles and documents

Synthetic Approaches to Nortropanes and Nortrop-6-enes; Intramolecular Displacement by Nitrogen in 7-Membered Rings

Naylor, Antoinette,Howarth, Nicola,Malpass, John R.

, p. 451 - 468 (2007/10/02)

The synthesis of simple nortropane and nortrop-6-ene derivatives from cyclohepta-1,3-diene is described.The key intermediates are trans-1-amino-4-chloro-cycloheptanes and -cyclohept-2-enes which are derived efficiently from the corresponding cis-amino-alcohols and undergo intramolecular cyclisation.Corresponding derivatisation of cyclohexa- and cycloocta-1,3-dienes is explored and attempts to achieve Pd-catalysed cyclisation of 1-amino-4-acetoxy-derivatives is described.Nitrogen inversion data for selected nortropane derivatives are included. Key Words: nortropanes/enes; 1,4-disubstitute cyclohexanes, cycloheptanes, cyclooctanes and -enes; intramolecular cyclisation; slow nitrogen inversion.

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