Cas 21673-02-9,Methanone, phenyl(4-phenyl-1H-pyrazol-3-yl)-

21673-02-9

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Basic information

Product Name: Methanone, phenyl(4-phenyl-1H-pyrazol-3-yl)-
Synonyms:
CAS NO:21673-02-9
Molecular Formula: C16H12N2O
Molecular Weight: 248.284
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: Methanone, phenyl(4-phenyl-1H-pyrazol-3-yl)-(CAS DataBase Reference)
NIST Chemistry Reference: Methanone, phenyl(4-phenyl-1H-pyrazol-3-yl)-(21673-02-9)
EPA Substance Registry System: Methanone, phenyl(4-phenyl-1H-pyrazol-3-yl)-(21673-02-9)

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: 21673-02-9(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 21673-02-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,6,7 and 3 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 21673-02:
(7*2)+(6*1)+(5*6)+(4*7)+(3*3)+(2*0)+(1*2)=89
89 % 10 = 9
So 21673-02-9 is a valid CAS Registry Number.

21673-02-9Upstream product

21673-02-9Downstream Products

107805-40-3 3-(3-Benzoyl-4-phenyl-pyrazol-1-yl)-1,3-diphenyl-propan-1-one

21673-02-9Relevant academic research and scientific papers

1,3-Dipolar cycloaddition of chalcones and arylidene-1,3-dicarbonyls with diazosulfone for the regioselective synthesis of functionalized pyrazoles and pyrazolines

Nair, Deepa,Pavashe, Prashant,Namboothiri, Irishi N.N.

, p. 2716 - 2724 (2018/04/25)

A convenient method for the synthesis of 3-acylpyrazoles and pyrazole-3-carboxylates using diazosulfone as a reactive 1,3-dipole and a diazomethane equivalent is reported here. Chalcones, arylidenemalonates and other arylidene-1,3-dicarbonyls performed we

Synthesis and reactions of some ethyl 3-aroyl-4-aryl-2-pyrazoline-5-carboxylates

Faidallah,Makki,Elmassry,Hassan

, p. 101 - 105 (2007/10/03)

A series of ethyl 3-aroyl-4-aryl-2-pyrazoline-5-carboxylates 1 was prepared. Their reactions with bromine water, potassium permanganate and potassium hydroxide afforded the corresponding pyrazoles. With aryl and aroyl hydrazines the pyrazolines 1 gave the Schiff bases 9 while with hydrazine hydrate they yielded the corresponding acid hydrazides 11. Condensation of 11 with aromatic aldehydes gave the arylidene derivatives 12, which on cyclization with the proper reagent afforded 13 or 14. Reaction of 1 with hydrochloric acid gave the corresponding dipyrazolo-pyrazine derivatives 10.

Synthesis and reactions of some ethyl 3(5)aroyl-4-aryl-2-pyrazoline-5(3)carboxylates

Faidallah, Hassan M.,Makki, Mohamed S. I.,El-Massry, Abdel-Moneium I.,Hassan, Saham Y.

, p. 1141 - 1153 (2007/10/03)

A series of ethyl 3(5)aroyl-4-aiyl-2-pyrazoline-5(3)carboxylates 1 was prepared. Their reactions with bromine water, potassium permanganate and potassium hydroxide afforded the corresponding pyrazoles. With aryl and aroyl hydrazines the pyrazolines 1 gave the Schiff bases 9 while with hydrazine hydrate they yielded the corresponding acid hydrazides 11. Condensation of 11 with aromatic aldehydes gave the arylidene derivatives 12, which, on cyclization with the propar reagent, afforded 13 or 14. Reaction of 1 with hydrochloric acid gave the corresponding dipyrazolo-pyrazine derivatives 10.

REACTION OF TRIMETHYLSILYLDIAZOMETHANE WITH OLEFINS

Aoyama, Toyohiko,Iwamoto, Yuji,Nishigaki, Satoshi,Shioiri, Takayuki

, p. 253 - 256 (2007/10/02)

Most of the reactions of trimethylsilyldiazomethane with various olefins in the presence or absence of metal salt catalysts give silylcyclopropanes.KEYWORDS - trimethylsilyldiazomethane; olefin; cyclopropanation; 1,3-dipolar cycloaddition; silylcyclopropane; pyrazoline; pyrazole

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