Cas 4970-21-2,2-(diphenylmethylene)benzofuranone

4970-21-2

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Basic information

Product Name: 2-(diphenylmethylene)benzofuranone
Synonyms: 2-(diphenylmethylene)benzofuranone
CAS NO:4970-21-2
Molecular Formula:
Molecular Weight: 298.341
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-(diphenylmethylene)benzofuranone(CAS DataBase Reference)
NIST Chemistry Reference: 2-(diphenylmethylene)benzofuranone(4970-21-2)
EPA Substance Registry System: 2-(diphenylmethylene)benzofuranone(4970-21-2)

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: 4970-21-2(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 4970-21-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,9,7 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 4970-21:
(6*4)+(5*9)+(4*7)+(3*0)+(2*2)+(1*1)=102
102 % 10 = 2
So 4970-21-2 is a valid CAS Registry Number.

4970-21-2Upstream product

4970-21-2Downstream Products

4970-21-2Relevant academic research and scientific papers

Synthesis of 2-(Diarylmethylene)-3-benzofuranones Promoted via Palladium-Catalyzed Reactions of Aryl iodides with 3-Aryl-1-(2-tert- butyldimethylsilyloxy)phenyl-2-propyn-1-ones

Lin, Chi-Fong,Lu, Wen-Der,Wang, I.-Wen,Wu, Ming-Jung

, p. 2057 - 2061 (2007/10/03)

3-Substituted-1-(2-tert-butyldimethylsilyloxy)phenyl-2-propyn-1-ones were coupled with aryl iodides by using palladium as a catalyst in ambient MeOH solution and gave 2-(diarylmethylene)-3-benzofuranones in moderate to good yields.

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