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132554-79-1

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132554-79-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 132554-79-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,2,5,5 and 4 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 132554-79:
(8*1)+(7*3)+(6*2)+(5*5)+(4*5)+(3*4)+(2*7)+(1*9)=121
121 % 10 = 1
So 132554-79-1 is a valid CAS Registry Number.

132554-79-1Downstream Products

132554-79-1Relevant articles and documents

Electronic and steric control in regioselective addition reactions of organolithium reagents with enaldimines

Tomioka,Shioya,Nagaoka,Yamada

, p. 7051 - 7054 (2007/10/03)

A reaction mode of imines derived from naphthalene-1-carbaldehyde and acyclic α,β-unsaturated aldehydes with organolitium reagents was dependent on the characteristic nature of a substituent on the imine nitrogen atom. An imine having an electron-withdrawing aryl group on the nirtogen atom behaves as a 1,2-directing imine toward organolithium reagents. In contrast, an imine bearing an alkyl or a bulky aryl group favors 1,4-addition of organolithium reagents. Electronic and steric tuning of a substituent on the imine nitrogen atom for a reaction mode was rationalized on the basis of molecular orbital calculations.

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