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87184-40-5

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87184-40-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 87184-40-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,7,1,8 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 87184-40:
(7*8)+(6*7)+(5*1)+(4*8)+(3*4)+(2*4)+(1*0)=155
155 % 10 = 5
So 87184-40-5 is a valid CAS Registry Number.

87184-40-5Relevant articles and documents

Oxidative Decyanation of Secondary Nitriles to Ketones

Freerksen, Robert W.,Selikson, Sandra J.,Wroble, Randall R.,Kyler, S. Keith,Watt, David S.

, p. 4087 - 4096 (2007/10/02)

Procedures for the oxidative decyanation of secondary nitriles to ketones involve (1) iodination of N-(trialkylsilyl)ketenimines derived from secondary nitriles and subsequent hydrolysis of the α-iodo nitriles with silver oxide, (2) addition of nitrosobenzene to N-(trialkylsilyl)ketenimines, (3) conversion of secondary nitriles to α-(phenylthio) nitriles and subsequent hydrolysis with N-bromosuccinimide in aqueous acetonitrile, and (4) preparation of α-hydroperoxy nitriles by direct oxygenation of anions of secondary nitriles and subsequent reductive hydrolysis with stannous chloride followed by sodium hydroxide.The latter general procedure was applied to various secondary nitriles bearing dialkyl, aryl and alkyl, and diaryl substituents to provide ketones in good yield and was extended to the oxidative decyanation of α,β-unsaturated nitriles to furnish α,β-unsaturated ketones.

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