Cas 20739-81-5,2-(1-Naphthyl)-5{[4'-5(1-naphthyl)-1,3,4-oxadiazol-2-yl][1,1'-biphenyl]-4-yl}-1,3,4-oxadiazole

20739-81-5

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Basic information

Product Name: 2-(1-Naphthyl)-5{[4'-5(1-naphthyl)-1,3,4-oxadiazol-2-yl][1,1'-biphenyl]-4-yl}-1,3,4-oxadiazole
Synonyms: 2-(1-Naphthyl)-5{[4'-5(1-naphthyl)-1,3,4-oxadiazol-2-yl][1,1'-biphenyl]-4-yl}-1,3,4-oxadiazole
CAS NO:20739-81-5
Molecular Formula:
Molecular Weight: 542.596
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: 2-(1-Naphthyl)-5{[4'-5(1-naphthyl)-1,3,4-oxadiazol-2-yl][1,1'-biphenyl]-4-yl}-1,3,4-oxadiazole(CAS DataBase Reference)
NIST Chemistry Reference: 2-(1-Naphthyl)-5{[4'-5(1-naphthyl)-1,3,4-oxadiazol-2-yl][1,1'-biphenyl]-4-yl}-1,3,4-oxadiazole(20739-81-5)
EPA Substance Registry System: 2-(1-Naphthyl)-5{[4'-5(1-naphthyl)-1,3,4-oxadiazol-2-yl][1,1'-biphenyl]-4-yl}-1,3,4-oxadiazole(20739-81-5)

Safety Data

Hazard Codes: N/A
Statements: N/A
Safety Statements: N/A
WGK Germany:
RTECS:
HazardClass: N/A
PackingGroup: N/A
Hazardous Substances Data: 20739-81-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 20739-81-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,7,3 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20739-81:
(7*2)+(6*0)+(5*7)+(4*3)+(3*9)+(2*8)+(1*1)=105
105 % 10 = 5
So 20739-81-5 is a valid CAS Registry Number.

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20739-81-5Relevant academic research and scientific papers

Functionalisation of 2-(1-naphthyl)-5-phenyl-1,3,4-oxadiazole with alkoxysilanes

Sugiono, Erli,Detert, Heiner

, p. 893 - 896 (2001)

A short route for the synthesis of 2,5-diaryl-1,3,4-oxadiazoles with rigid connections to alkoxysilanes 7, 8, 9 via Heck reaction of the bromo compound 3 with vinylalkoxysilanes 4, 5, 6, and also via palladium-catalysed vinylation to the styrene 11 and cross-metathesis with vinyl silanes is described. An extension of the conjugated system to 14 is possible with silyl-substituted styrene 13.

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