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Ethanone, 2-(9H-fluoren-9-ylidene)-1-phenyl-, also known as 1-phenyl-2-(9H-fluoren-9-ylidene)ethanone or 1-phenyl-2-fluorenylideneethanone, is an organic compound with the chemical formula C20H14O. It is a derivative of acetophenone, featuring a fluorenyl group attached to the carbonyl carbon atom. Ethanone, 2-(9H-fluoren-9-ylidene)-1-phenyl- is characterized by its unique structure, which combines the properties of both acetophenone and fluorene. It is often used in organic synthesis, particularly in the preparation of various fluorene-based compounds and materials. The compound is known for its potential applications in the field of materials science, such as in the development of organic light-emitting diodes (OLEDs) and other optoelectronic devices, due to its electronic properties and stability.

5653-33-8

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5653-33-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5653-33-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,5 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 5653-33:
(6*5)+(5*6)+(4*5)+(3*3)+(2*3)+(1*3)=98
98 % 10 = 8
So 5653-33-8 is a valid CAS Registry Number.

5653-33-8SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-fluoren-9-ylidene-1-phenylethanone

1.2 Other means of identification

Product number -
Other names 2-fluoren-9-ylidene-1-phenyl-ethanone

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:5653-33-8 SDS

5653-33-8Relevant academic research and scientific papers

Dithioacetal as a 1,1-zwitterion synthon. Synthesis of functionalized alkenes by the coupling of benzylic dithioacetals with another 1,1-zwitterion synthon

Tu, Hai-Yang,Liu, Yi-Hung,Wang, Yu,Luh, Tien-Yau

, p. 771 - 773 (2005)

Reaction of a dithioacetal sequentially with BuLi and alkyl bromide having an electron withdrawing substituent at the α-position followed by treatment with neutral alumina gives the corresponding olefination product in moderate to good yields.

Synthesis of 9-fluorenylidenes and 9,10-phenanthrenes through palladium-catalyzed aryne annulation by o-halostyrenes and o-halo allylic benzenes

Worlikar, Shilpa A.,Larock, Richard C.

supporting information; experimental part, p. 9132 - 9139 (2010/03/01)

(Chemical Equation Presented) A number of functionally substituted 9-fluorenylidenes and 9,10-phenanthrenes have been synthesized from substituted o-halostyrenes and o-halo allylic benzenes respectively in good yields by the palladium-catalyzed annulation

Palladium-catalyzed synthesis of 9-fluorenylidenes through aryne annulation

Worlikar, Shilpa A.,Larock, Richard C.

supporting information; experimental part, p. 2413 - 2416 (2009/11/30)

The palladium-catalyzed annulation of arynes by substituted o-halostyrenes produces substituted 9-fluorenylidenes in good yields. This methodology provides this important carbocyclic ring system in a single step, which involves the generation of two new c

Reinvestigation on Thermal Cycloaddition of 1-Aryl-2-(9-fluorenylidene)-1-haloethylenes

Minabe, Masahiro,Yoshida, Masaaki,Saito, Seiji,Tobita, Keisuke,Toda, Takashi

, p. 2067 - 2070 (2007/10/02)

The thermal treatment of 1-bromo-2-(9-fluorenylidene)-1-phenylethylene afforded three different types of cycloaddition products.The 1-tolyl homolog showed similar trends, but the chloro analog gave only two types.These results suggest that reactions

β-Elimination of the Isonitrile Group in Alkylation Reactions of C-H Acids Activated by the Isonitrile Function

Jawdosiuk, Mikolaj,Uminski, Maciej

, p. 979 - 980 (2007/10/02)

During phase-transfer alkylation of the isonitriles R1R2CHNC with X-CH2-Y, where X is a leaving group and Y an electron withdrawing group, some of the alkylation products undergo β-elimination of the isonitrile function to yield R1R2C=CHY.

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