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156423-17-5

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156423-17-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 156423-17-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,4,2 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 156423-17:
(8*1)+(7*5)+(6*6)+(5*4)+(4*2)+(3*3)+(2*1)+(1*7)=125
125 % 10 = 5
So 156423-17-5 is a valid CAS Registry Number.

156423-17-5Relevant articles and documents

Cyclic Vinyl(aryl)iodonium Salts: Synthesis and Reactivity

Kepski, Konrad,Rice, Craig R.,Moran, Wesley J.

supporting information, p. 6936 - 6939 (2019/09/30)

A convenient, highly regioselective synthesis of five-membered cyclic vinyl(aryl)iodonium salts directly from β-iodostyrenes is presented. An X-ray crystal structure confirms the identity of these heterocycles. These λ3-iodanes can be converted

Oxidative Halo-Decarboxylation of α,β-Unsaturated Carboxylic Acids

Graven, Anette,Joergensen, Karl Anker,Dahl, Soeren,Stanczak, Andrzej

, p. 3543 - 3546 (2007/10/02)

A procedure for oxidative halo-decarboxylation of α,β-unsaturated carboxylic acids using iodosylbenzene, or iodosylbenzene diacetate, and N-chloro-, N-bromo-, or N-iodosuccinimide is presented.Good yields of the corresponding bromoalkenes are obtained when the α,β-unsaturated carboxylic acids are substituted with an aromatic substituent in the β-position and N-bromosuccinimide is used as the halogenation reagent.The scope of mainly the oxidative bromo-decarboxylation reaction is presented, and a tentative mechanism is proposed.

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