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3,4-diphenyl-5-(phenylethynyl)-4H-1,2,4-triazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1187772-50-4

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1187772-50-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1187772-50-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,8,7,7,7 and 2 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1187772-50:
(9*1)+(8*1)+(7*8)+(6*7)+(5*7)+(4*7)+(3*2)+(2*5)+(1*0)=194
194 % 10 = 4
So 1187772-50-4 is a valid CAS Registry Number.

1187772-50-4Downstream Products

1187772-50-4Relevant academic research and scientific papers

Room temperature direct alkynylation of 1,3,4oxadiazoles with alkynyl bromides under copper catalysis

Kawano, Tsuyoshi,Matsuyama, Naoto,Hirano, Koji,Satoh, Tetsuya,Miura, Masahiro

experimental part, p. 1764 - 1766 (2010/05/01)

("Figure Presented") The direct alkynylation reaction of 1,3,4-oxadiazoles with alkynyl bromides efficiently proceeds in the presence of a copper catalyst at room temperature to create the corresponding heteroaryl-alkynyl linkage in good yields. This direct coupling provides a rapid and convergent access to oxadiazole core Π-conjugated systems.

Nickel-catalyzed direct alkynylation of azoles with alkynyl bromides

Matsuyama, Naoto,Hirano, Koji,Satoh, Tetsuya,Miura, Masahiro

supporting information; experimental part, p. 4156 - 4159 (2009/12/31)

The direct C - H alkynylation of azoles with alkynyl bromides proceeds efficiently In the presence of a nickel-based catalyst system. The reaction enables the introduction of various alkynyl groups bearing aryl, alkenyl, alkyl, and silyl substituents to t

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