122243-33-8Relevant articles and documents
Access to Aryl and Heteroaryl Trifluoromethyl Ketones from Aryl Bromides and Fluorosulfates with Stoichiometric CO
Johansen, Martin B.,Gedde, Oliver R.,Mayer, Thea S.,Skrydstrup, Troels
, p. 4068 - 4072 (2020/06/03)
We report a sequential one-pot preparation of aromatic trifluoromethyl ketones starting from readily accessible aryl bromides and fluorosulfates, the latter easily prepared from the corresponding phenols. The methodology utilizes low pressure carbon monoxide generated ex situ from COgen to generate Weinreb amides as reactive intermediates that undergo monotrifluoromethylation affording the corresponding aromatic trifluoromethyl ketones (TFMKs) in good yields. The stoichiometric use of CO enables the possibility for accessing 13C-isotopically labeled TFMK by switching to the use of 13COgen.
Oxime derivatives and the use thereof as latent acids
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, (2008/06/13)
Compounds of formula I, II and III, wherein wherein R1is for example hydrogen, C1-C12alkyl, C3-C30cycloalkyl, C2-C12alkenyl, C4-C8cycloalkenyl, phenyl, whic
A simple and efficient preparation of 3-aryl-3-trifluoromethyl-3H-diazirinyl sulfoxides and sulfones
Findlay,Fishwick,Kersey,Ward
, p. 553 - 556 (2007/10/02)
All regioisomers of 3-aryl-3-trifluoromethyl-3H-diazirinyl sulfoxides and sulfones have been prepared in five steps from the corresponding bromothioanisoles in excellent overall yields. The key step involves a simultaneous oxidation of sulfide and diaziri