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193904-74-4

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193904-74-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 193904-74-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,3,9,0 and 4 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 193904-74:
(8*1)+(7*9)+(6*3)+(5*9)+(4*0)+(3*4)+(2*7)+(1*4)=164
164 % 10 = 4
So 193904-74-4 is a valid CAS Registry Number.

193904-74-4Downstream Products

193904-74-4Relevant academic research and scientific papers

Iodine-catalyzed aminosulfonation of hydrocarbons by imidoiodinanes. a synthetic and mechanistic investigation

Lamar, Angus A.,Nicholas, Kenneth M.

, p. 7644 - 7650 (2010)

The amino-functionalization of a range of benzylic and some aliphatic saturated and unsaturated hydrocarbons by reaction with imido-iodinanes (PhI=NSO2Ar) is catalyzed by I2 under operationally simple and mild conditions. The first examples of 1,2-functionalization of unactivated C-H bonds using imido-iodinanes as aminating agents are reported. Mechanistic investigations, including Hammett analysis, kinetic isotope effects, a cyclopropane clock experiment, and stereoselectivity tests, are indicative of a stepwise pathway in C-N bond formation. Investigation into the nature of the active aminating species has led to the isolation of a novel aminating agent formulated as (ArSO2N)xIy (x = 1, y = 2; or x = 3, y = 4).

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