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13031-10-2

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13031-10-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13031-10-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,0,3 and 1 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 13031-10:
(7*1)+(6*3)+(5*0)+(4*3)+(3*1)+(2*1)+(1*0)=42
42 % 10 = 2
So 13031-10-2 is a valid CAS Registry Number.

13031-10-2Relevant articles and documents

Palladium-catalyzed asymmetric hydrogenation of simple ketones activated by Br?nsted acids

Zhou, Xiao-Yu,Wang, Duo-Sheng,Bao, Ming,Zhou, Yong-Gui

supporting information; experimental part, p. 2826 - 2829 (2011/06/21)

Homogeneous Pd(OCOCF3)2/(R)-C4-TunePhos has been successfully applied in the asymmetric hydrogenation of simple ketones activated by catalytic amount of Br?nsted acid with up to 88% ee.

Stereoisomerization of Ketene Imines

Lambrecht, Johanna,Gambke, Brigitte,Seyerl, Joachim von,Huttner, Gottfried,Kollmannsberger-von Nell, Georg,et al.

, p. 3751 - 3771 (2007/10/02)

Barriers to racemization in solution of the ketene imines 1a - y and X-ray structures of the ketene imines 1s and z are described.Similar to allenes all ketene imines have dihedral angles of 90 deg between the C- and N-substituents.The barriers to racemization range from 30 to 63 kJmol-1 and are lowered by electron attracting substituents on C and N.The barriers of m- and p-substituted N-arylketene imines give a linear Hammett correlation with ?- constants.N-Arylketene imines racemize through inversion at nitrogen and simultaneous rotation of the aryl group around the N - aryl bond.

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