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184034-52-4

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184034-52-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 184034-52-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,4,0,3 and 4 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 184034-52:
(8*1)+(7*8)+(6*4)+(5*0)+(4*3)+(3*4)+(2*5)+(1*2)=124
124 % 10 = 4
So 184034-52-4 is a valid CAS Registry Number.

184034-52-4Downstream Products

184034-52-4Relevant articles and documents

Attractive interaction caused by the linear F···Se-C alignment in naphthalene peri positions

Nakanishi, War?,Hayashi, Satoko,Sakaue, Akira,Ono, Go,Kawada, Yuzo

, p. 3635 - 3640 (1998)

The X-ray crystallographic analysis of 8-fluoro-1-(p- anisylselanyl)naphthalene (1) revealed that the F and Se atoms and the ipso- carbon of the p-anisyl group (C(An)) aligned linearly. The F atom and the Se- C(An) bond lay on the naphthyl plane: the nonb

CuO nanoparticles: an efficient and recyclable catalyst for cross-coupling reactions of organic diselenides with aryl boronic acids

Alves, Diego,Santos, Cayane G.,Paix?o, Márcio W.,Soares, Letiére C.,Souza, Diego de,Rodrigues, Oscar E.D.,Braga, Ant?nio L.

scheme or table, p. 6635 - 6638 (2010/03/01)

We present here an efficient and ligand-free cross-coupling reaction of organic diselenides with aryl boronic acids using a catalytic amount of CuO nanoparticles in DMSO at 100 °C under air atmosphere. This is a general cross-coupling reaction and was performed with organic diselenides and aryl boronic acids bearing electron-withdrawing and electron-donating groups affording the corresponding selenides in good to excellent yields. The CuO nanoparticles can be easily recovered and utilized for further catalytic reactions.

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