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1198769-39-9

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1198769-39-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1198769-39-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,9,8,7,6 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1198769-39:
(9*1)+(8*1)+(7*9)+(6*8)+(5*7)+(4*6)+(3*9)+(2*3)+(1*9)=229
229 % 10 = 9
So 1198769-39-9 is a valid CAS Registry Number.

1198769-39-9Relevant articles and documents

Synthesis of 5-Fluorotriazoles by Silver-Mediated Fluorination of 5-Iodotriazoles

Wang, Damin,Sun, Wenjing,Chu, Taiwei

supporting information, p. 4114 - 4118 (2015/06/30)

A simple method was developed for the direct fluorination of 5-iodotriazoles with AgF as fluoride source and N1,N1,N2,N2-tetramethylethane-1,2-diamine (TMEDA) as ligand. This method is compatible with various fu

COPPER CATALYZED CYCLOADDITION OF ORGANIC AZIDES AND 1-HALOALKYNES

-

, (2011/02/24)

This invention provides a method for preparing a 1,2,3-triazole compound comprising contacting an organic azide with a 2-substitued-1-haloalkyne, in the presence of a copper catalyst and a copper-coordinating ligand (preferably a tertiary amine) in a liquid reaction medium, thereby forming a 1,4,5-substituted-1,2,3-triazole compound including a halo substituent at the 5-position of the triazole, the organic portion of the organic azide at the 1-position of the triazole, and the substituent of the 1-iodoalkyne at the 4-position of the triazole. A method for preparing 1-iodoalkynes is also provided.

Experimental evidence for the involvement of dinuclear alkynylcopper(I) complexes in alkyne-azide chemistry

Buckley, Benjamin R.,Dann, Sandra E.,Heaney, Harry

supporting information; experimental part, p. 6278 - 6284 (2010/07/07)

Dinuclear alkynylcopper(I) ladderane complexes are prepared by a robust and simple protocol involving the reduction of Cu2(OH)3OAc or Cu-(OAc)2 by easily oxidised alcohols in the presence of terminal alkynes; they function

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