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1404310-27-5

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1404310-27-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1404310-27-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,4,3,1 and 0 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1404310-27:
(9*1)+(8*4)+(7*0)+(6*4)+(5*3)+(4*1)+(3*0)+(2*2)+(1*7)=95
95 % 10 = 5
So 1404310-27-5 is a valid CAS Registry Number.

1404310-27-5Downstream Products

1404310-27-5Relevant articles and documents

Hydrogen-bonding thiourea organocatalysts: The privileged 3,5-bis(trifluoromethyl)phenyl group

Lippert, Katharina M.,Hof, Kira,Gerbig, Dennis,Ley, David,Hausmann, Heike,Guenther, Sabine,Schreiner, Peter R.

supporting information, p. 5919 - 5927 (2013/01/15)

We present evidence that the privileged use of the 3,5-bis(trifluoromethyl) phenyl group in thiourea organocatalysis is due to the involvement of the ortho-CH bond in the binding event with Lewis-basic sites. We utilized a combination of low-temperature IR spectroscopy, 2D NMR spectroscopy, nano-MS (ESI) investigations, as well as density functional theory computations [M06/6-31+G(d,p), including solvent corrections as well as natural bond orbital and atoms-in-molecules analyses] to support our conclusions that bear implications for catalyst design. The present work reveals that thiourea derivatives bearing a 3,5-bis(trifluoromethyl)phenyl group interact with Lewis basic sites of carbonyl derivatives through NH and highly polarized ortho-CH interactions in hydrogen-bonded complexes. Evidence is provided through a combination of DFT, variable-temperature IR and NMR spectroscopy, as well as MS (ESI) studies.

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