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25562-42-9

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25562-42-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25562-42-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,5,6 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 25562-42:
(7*2)+(6*5)+(5*5)+(4*6)+(3*2)+(2*4)+(1*2)=109
109 % 10 = 9
So 25562-42-9 is a valid CAS Registry Number.

25562-42-9Relevant articles and documents

Ruthenium-Catalyzed C–H Selenylations of Benzamides

Ma, Wenbo,Weng, Zhengyun,Fang, Xinyue,Gu, Linghui,Song, Yupin,Ackermann, Lutz

, p. 41 - 45 (2019)

A convenient and effective protocol for the ruthenium-catalyzed C–H selenylations of benzamide was achieved under mild reaction conditions. The robust ruthenium catalyst tolerated a wide range of functional groups and set the stage for the preparation for diversely decorated benzamides. The amide directing group could be transferred to carboxylic acid, aldehyde and tetrazoles. Preliminary mechanistic study indicated a base-assisted electrophilic-type substitution C–H activation event.

Copper nano-catalyst: Sustainable phenyl-selenylation of aryl iodides and vinyl bromides in water under ligand free conditions

Saha, Amit,Saha, Debasree,Ranu, Brindaban C.

experimental part, p. 1652 - 1657 (2009/06/28)

A simple and efficient procedure for the synthesis of aryl- and vinyl-selenides has been developed by a copper nanoparticle catalysed reaction of aryl iodide/vinyl bromide with diphenyl diselenide in the presence of zinc in water. (E)-Vinyl bromides produce (E)-vinyl selenides stereoselectively, whereas (Z)-vinyl bromides provide mixtures of (E) and (Z) isomers. The catalyst was recycled.

Selenabenzenes. I. Synthesis of 10 selenaanthracene derivatives

Hori,Kataoka,Hsu

, p. 15 - 20,16,19 (2007/10/04)

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