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109950-07-4

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109950-07-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 109950-07-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,9,5 and 0 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 109950-07:
(8*1)+(7*0)+(6*9)+(5*9)+(4*5)+(3*0)+(2*0)+(1*7)=134
134 % 10 = 4
So 109950-07-4 is a valid CAS Registry Number.

109950-07-4Relevant articles and documents

Simple and versatile catalytic system for N-alkylation of sulfonamides with various alcohols

Zhu, Mingwen,Fujita, Ken-Ichi,Yamaguchi, Ryohei

, p. 1336 - 1339 (2010)

"Chemical Equation Presented" A simple and versatile catalytic system for N-alkylation of sulfonamides with various alcohols based on a catalytic hydrogen transfer reaction has been developed under a low catalyst loading of [Cp*lrCl2]2 (0.050-1.5 mol %) in the presence of t-BuOK. A variety of N-alkylated sulfonamides were prepared In good to excellent yields. Mechanistic investigations revealed that the key catalytic species in the present system is a sulfonylimido-bridged unsaturated diirldium complex [(Cp*lr)2(μ-NTs)2].

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