473-28-9

Upstream product

• 402-43-7 p-trifluoromethylphenyl bromide 
• 378-77-8 sodium pentafluoropropionate 
• 60007-39-8 pentafluoroethylcopper(I) 
• 455-13-0 4-Iodobenzotrifluoride 
• 128796-39-4 4-trifluoromethylphenylboronic acid 
• 1467-05-6 4-ethylbenzylchloride 
• 857000-76-1 1-pentachloroethyl-4-trichloromethyl-benzene 

Downstream Products

• 434-63-9 1,2,4,5-tetrachloro-3-pentafluoroethyl-6-trifluoromethyl-benzene 
• 393-44-2 1,4-dichloro-2-pentafluoroethyl-5-trifluoromethyl-benzene 

Relevant academic research and scientific papers

"ligandless" Pentafluoroethylation of Unactivated (Hetero)aryl and Alkenyl Halides Enabled by the Controlled Self-Condensation of TMSCF3-Derived CuCF3

Pentafluoroethylation of unactivated C(sp2)-X bonds (X = I, Br) using a storable, "ligandless" CuC2F5 reagent prepared by controlled self-condensation of ready available TMSCF3-derived CuCF3 has been

PENTAFLUOROETHYLATING COMPOSITIONS

The present invention relates to pentafluoroethylating compositions, processes for obtaining them, and their use in pentafluoroethylation reactions.

Stable but reactive perfluoroalkylzinc reagents: Application in ligand-free copper-catalyzed perfluoroalkylation of aryl iodides

The aromatic perfluoroalkylation catalyzed by a copper(I) salt with bis(perfluoroalkyl)zinc reagents Zn(RF)2(DMPU)2, which were prepared and then isolated as a stable white powder from perfluoroalkyl iodide and diethylzinc, was accomplished to provide the perfluoroalkylated products in good-to-excellent yields. The advantages of this reliable and practical catalytic reaction are 1) airstable and easy-to-handle bis(perfluoroalkyl)zinc reagents can be utilized, 2) the reagent is reactive and hence the operation without activators and ligands is simple, and 3) not only trifluoromethylation but also perfluoroalkylation can be attained.

Pentafluoroethylating compositions

The present invention relates to pentafluoroethylating compositions, processes for obtaining them, and their use in pentafluoroethylation reactions.

Direct synthesis of pentafluoroethyl copper from pentafluoropropionate as an economical C2F5 source: Application to pentafluoroethylation of arylboronic acids and aryl bromides

The direct synthesis of pentafluoroethyl copper (CuC2F 5) from a cuprate reagent and ethyl pentafluoropropionate as one of the most economical and useful pentafluoroethyl sources was accomplished. The advantages of this method are; all the reagents employed are low-cost and operationally simple, and the CuC2F5 reagent is prepared in virtually quantitative yield. Furthermore, the CuC2F5 reagent prepared was successfully applied to two types of pentafluoroethylations with arylboronic acids and aryl bromides to provide the pentafluoroethylated aromatic products in good-to-excellent yields, including large scale operations.

Cupration of C2F5H: Isolation, structure, and synthetic applications of [K(DMF)2][(t -BuO)Cu(C2F 5)]. Highly efficient pentafluoroethylation of unactivated aryl bromides

Pentafluoroethane, C2F5H (HFC-125), is smoothly cuprated with preisolated or in situ-generated [K(DMF)][(t-BuO)2Cu] to give [K(DMF)2][(t-BuO)Cu(C2F5)] (1) in nearly quantitative yield. Complex 1 has been isolated, structurally characterized, and demonstrated to be an exceedingly versatile pentafluoroethylating reagent for a variety of substrates, including unactivated aryl bromides.

Sodium Perfluoroalkane Carboxylates as Sources of Perfluoroalkyl Groups

Sodium trifluoroacetate, in the presence of copper(I) iodide, is used as a source of trifluoromethyl to replace halogen by trifluoromethyl in benzenoid and heterocyclic aromatic systems, as well as in alkenyl and alkyl halogen compounds.The mechanism of this interesting copper-assisted process has been explored and an intermediate of the form - is proposed.Introduction of higher perfluoroalkyl groups from their respective sodium perfluoroalkane carboxylates has been demonstrated and the machanistic features are compared with those of the trifluoromethylation process.