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39220-85-4

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39220-85-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 39220-85-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,2,2 and 0 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 39220-85:
(7*3)+(6*9)+(5*2)+(4*2)+(3*0)+(2*8)+(1*5)=114
114 % 10 = 4
So 39220-85-4 is a valid CAS Registry Number.

39220-85-4Downstream Products

39220-85-4Relevant articles and documents

Asymmetric Intramolecular Conjugate Addition Nitro-Mannich Route to cis-2-Aryl-3-nitrotetrahydroquinolines

Anderson, James C.,Barham, Joshua P.,Rundell, Christopher D.

, p. 4090 - 4093 (2015)

Reductive cyclization of 2-iminonitrostyrenes (from the condensation of 2-aminostyrenes with an aldehyde and subsequent nitration of the alkene) using a bifunctional thiourea catalyst and tert-butyl-Hantzsch ester leads to an intramolecular conjugate hydride addition nitro-Mannich reaction to give the corresponding cis-2-aryl-3-nitrotetrahydroquinolines as single diastereoisomers in high yields and enantioselectivities.

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