cas 317-57-7, 8-Trifluoromethylquinoline | Articles data

Articles about 317-57-7Total 6 be found

The effect of photocatalyst excited state lifetime on the rate of photoredox catalysis
Four different iridium(iii) polypyridyl complexes with varying excited state lifetimes are used as photocatalysts to study the effect of excited state lifetime on the rate of a prototypical photoredox-catalyzed reaction, the trifluoromethylation of quinoline. An improved mechanistic understanding of the photocatalysis is achieved, enabling guided optimization of reaction conditions and elucidating the role of the photocatalyst excited state lifetime on the rate of photocatalysis.
Ochola,Wolf
supporting information
p. 9088 - 9092
(2016/10/07)

Copper-catalyzed trifluoromethylation of organic zinc reagents with an electrophilic trifluoromethylating reagent
A copper-catalyzed trifluoromethylation of aryl, vinyl and alkyl zinc reagents with Togni's reagent was described. Mechanistic studies indicated that the aryl group is initially transferred from the zinc reagent to hypervalent iodine to form a tri-substituted hypervalent iodine intermediate. Consequent reductive-elimination via a concerted bond-forming step and/or radical pathway from this intermediate generates the trifluoromethylated arenes.
Wang, Chang-Sheng,Wang, Haoyang,Yao, Cheng
p. 24783 - 24787
(2015/03/30)

One-pot sandmeyer trifluoromethylation and trifluoromethylthiolation
Practical one-pot procedures were developed for both Sandmeyer-type trifluoromethylations and trifluoromethylthiolations. Starting from broadly available (hetero)aromatic amines, various benzotrifluorides were synthesized in high yields via in situ diazotization and copper-mediated trifluoromethylation using the inexpensive Ruppert-Prakash trifluoromethylating reagent. In the presence of sodium thiocyanate as a sulfur source, aryl trifluoromethyl thioethers are exclusively formed.
Bayarmagnai, Bilguun,Matheis, Christian,Risto, Eugen,Goossen, Lukas J.
supporting information
p. 2343 - 2348
(2014/07/21)

Copper-promoted sandmeyer trifluoromethylation reaction
A copper-promoted trifluoromethylation reaction of aromatic amines is described. This transformation proceeds smoothly under mild conditions and exhibits good tolerance of many synthetically relevant functional groups. It provides an alternative approach for the synthesis of trifluoromethylated arenes and heteroarenes. It also constitutes a new example of the Sandmeyer reaction.
Dai, Jian-Jun,Fang, Chi,Xiao, Bin,Yi, Jun,Xu, Jun,Liu, Zhao-Jing,Lu, Xi,Liu, Lei,Fu, Yao
supporting information
p. 8436 - 8439
(2013/07/19)

Sandmeyer trifluoromethylation of arenediazonium tetrafluoroborates
Copper capabilities: Diazonium salts are converted into the corresponding trifluoromethyl derivatives in the presence of a trifluoromethyl-copper complex generated in situ from CuSCN and the inexpensive, easy-to-use trifluoromethylating reagent Me3Si-CF3 (see scheme). This Sandmeyer-type reaction allows the straightforward synthesis of trifluoromethylated arenes and heteroarenes from the corresponding amines. Copyright
Danoun, Grégory,Bayarmagnai, Bilguun,Grünberg, Matthias F.,Goo?en, Lukas J.
supporting information
p. 7972 - 7975
(2013/08/23)

A ligand-free copper-catalyzed decarboxylative trifluoromethylation of aryliodides with sodium trifluoroacetate using Ag2O as a promoter
A practical and ligand-free Cu-catalyzed decarboxylative trifluoromethylation of aryl iodides with sodium trifluoroacetate using Ag 2O as a promoter was reported. A variety of trifluoromethyl- substituted aromatics are synthesized in moderate to excellent yields and with wide functional-group tolerance under relatively mild reaction conditions. Georg Thieme Verlag Stuttgart · New York.
Li, Yaming,Chen, Tao,Wang, Huifeng,Zhang, Rong,Jin, Kun,Wang, Xiuna,Duan, Chunying
supporting information; experimental part
p. 1713 - 1716
(2011/09/12)