Electrophilic Trifluoromethanesulfanylation of Organometallic Species with Trifluoromethanesulfanamides
作者:François Baert、Julie Colomb、Thierry Billard
DOI:10.1002/anie.201205156
日期:2012.10.8
It's so easy! Direct trifluoromethanesulfanylation reactions remain difficult to perform because of the lack of reagents that are stable and easy to handle. Trifluoromethanesulfanamides are reagents which, in combination with readily available Grignard reagents, can be used by those without experience in fluorine chemistry to easily synthesize trifluoromethylthioethers.
Nucleophilic Perfluoroalkylation of Aldehydes, Ketones, Imines, Disulfides, and Diselenides
作者:Chaya Pooput、William R. Dolbier,、Maurice Médebielle
DOI:10.1021/jo060250j
日期:2006.4.1
trifluoromethylation, the perfluoroalkyl anion reagents created by mixing C2F5I and n-C4F9I with tetrakis(dimethylamino)ethylene (TDAE) were effective in their nucleophilic reactions with aldehydes, ketones, imines, disulfides, and diselenides. Irradiation proved beneficial in the aldehyde and ketone reactions.
使用类似于为亲核三氟甲基化开发的方法,通过将C 2 F 5 I和n -C 4 F 9 I与四(二甲基氨基)乙烯(TDAE)混合而产生的全氟烷基阴离子试剂在与醛,酮的亲核反应中有效,亚胺,二硫化物和二硒化物。辐射被证明对醛和酮反应有利。
A New and Efficient Method for the Synthesis of Trifluoromethylthio- and Selenoethers
作者:Chaya Pooput、Maurice Medebielle、William R. Dolbier
DOI:10.1021/ol036303q
日期:2004.1.1
[reaction: see text] A new atom-economic procedure for preparation of trifluoromethyl thio- and selenoethers is reported, wherein both halves of aryl and alkyl disulfides and diselenides are able to be utilized with high efficiency.
The reaction of trifluoromethyl bromide with disulphides in the presence of dithionite or hydroxymethanesulphinate salts in DMF–H2O (DMF = dimethylformamide) medium leads to the formation of aliphatic and aromatic trifluoromethyl sulphides.
Since the SS bond of polysulfides plays a vital role in biological processes, the chemistry of the SS bond has attracted considerable attention. The reaction of bis-(trifluoromethyl) trisulfide with organolithium reagents at −78 °C has now been found to cause simultaneous scissions of the CS and SS bonds and to furnish mixed monosulfides, disulfides and trisulfides containing the trifluoromethyl