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188881-92-7

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188881-92-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 188881-92-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,8,8 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 188881-92:
(8*1)+(7*8)+(6*8)+(5*8)+(4*8)+(3*1)+(2*9)+(1*2)=207
207 % 10 = 7
So 188881-92-7 is a valid CAS Registry Number.

188881-92-7Relevant articles and documents

The titanocene-catalyzed reduction of acetamides to tertiary amines by PhMeSiH2

Selvakumar, Kumaravel,Rangareddy, Kesamreddy,Harrod, John F.

, p. 1244 - 1248 (2004)

A variety of acetamide derivatives are reduced in excellent yields to tertiary amines by PhMeSiH2 in the presence of Cp2TiX 2 (X = F or Me) catalysts. The reactions are very clean at 80 °C. At room temperature a secondary reaction, hydrogenolysis of the C(O)-N bond, intervenes and reduces the chemoselectivity. Nevertheless, this chemistry provides a simple methodology for the amide/alkylamine transformation using inexpensive, commercially available reagents.

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