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579-39-5

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579-39-5 Usage

Chemical Properties

pale yellow powder

Uses

4,4′-Difluorobenzil is suitable for use in the preparation of 2,3-bis(4-fluorophenyl)thieno[3,4-b]pyrazine. It may be used in the synthesis of following:poly(ether-α-diketone)s, via nucleophilic substitution reaction with bisphenol A4,4′-difluoro-2,3-diphenylpyrazine (DPPF) and 4,4′-difluoro-5-methyl 2,3-diphenylpyrazine (MDPPF), via direct condensation with ethylenediamine and 1,2-diaminopropane, respectively2,3-bis(4-fluorophenyl)quinoxaline, via direct condensation with 1,2-phenylenediamine

Synthesis Reference(s)

Tetrahedron Letters, 35, p. 2959, 1994 DOI: 10.1016/S0040-4039(00)76671-8

General Description

4,4′-Difluorobenzil is a benzil derivative. Its reaction with benzylurea and phenethylurea has been investigated. It is reported to undergo condensation with Fe2(SH)2(CO)6 to afford the adduct Fe2[S2C2(OH)2(C6H4-4-F)2](CO)6.

Check Digit Verification of cas no

The CAS Registry Mumber 579-39-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,7 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 579-39:
(5*5)+(4*7)+(3*9)+(2*3)+(1*9)=95
95 % 10 = 5
So 579-39-5 is a valid CAS Registry Number.

579-39-5SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 12, 2017

Revision Date: Aug 12, 2017

1.Identification

1.1 GHS Product identifier

Product name 4,4'-DIFLUOROBENZIL

1.2 Other means of identification

Product number -
Other names 1,2-bis(4-fluorophenyl)ethane-1,2-dione

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:579-39-5 SDS

579-39-5Relevant articles and documents

Cooperative N-Heterocyclic Carbene/Nickel-Catalyzed Hydroacylation of 1,3-Dienes with Aldehydes in Water

Gao, Zhong-Hua,Han, You-Feng,Liu, Hao,Wang, Congyang,Ye, Song,Zhang, Chun-Lin

, p. 1657 - 1663 (2022/01/28)

The cooperative N-heterocyclic carbene/nickel-catalyzed redox-neutral hydroacylation of 1,3-dienes with aldehydes in water was reported. A wide range of aliphatic and aromatic aldehydes were directly coupled with 1,3-dienes, providing synthetically useful β,γ-unsaturated ketones or the corresponding ketones after hydrogenation in moderate to high yields and high atom economy. This protocol first demonstrated the compatibility of NHC catalysis with nickel catalysis. Water was used as the sole solvent, which is rarely reported in a cooperative metal/organic catalytic system.

Catalyst-Free and Transition-Metal-Free Approach to 1,2-Diketones via Aerobic Alkyne Oxidation

Shen, Duyi,Wang, Hongyan,Zheng, Yanan,Zhu, Xinjing,Gong, Peiwei,Wang, Bin,You, Jinmao,Zhao, Yulei,Chao, Mianran

, p. 5354 - 5361 (2021/05/05)

A catalyst-free and transition-metal-free method for the synthesis of 1,2-diketones from aerobic alkyne oxidation was reported. The oxidation of various internal alkynes, especially more challenging aryl-alkyl acetylenes, proceeded smoothly with inexpensive, easily handled, and commercially available potassium persulfate and an ambient air balloon, achieving the corresponding 1,2-diketones with up to 85% yields. Meanwhile, mechanistic studies indicated a radical process, and the two oxygen atoms in the 1,2-diketons were most likely from persulfate salts and molecular oxygen, respectively, rather than water.

Ring Closing Metathesis Approach for the Synthesis of o-Terphenyl Derivatives

Karmakar, Shilpi,Mandal, Tirtha,Dash, Jyotirmayee

, p. 5916 - 5924 (2019/08/21)

A linear synthesis of o-terphenyl derivatives has been delineated using ring closing metathesis (RCM) as the key step. In this approach, benzil derivatives upon allyl Grignard addition provides diphenyl-1,2-diallyl dihydroxy derivatives which undergo ring closing metathesis to afford tetrahydro terphenyl derivatives. Aromatization-driven dehydration then leads to a diverse set of electron rich and electron deficient o-terphenyls. Furthermore, oxidative coupling of electron rich o-terphenyls provides the corresponding triphenylene derivatives.

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