Search results
Results from the WOW.Com Content Network
A derivative of trifluorotoluene, 3-aminobenzotrifluoride, is the precursor to the herbicide fluometuron. [3] It is synthesized via nitration followed by reduction to meta-H 2 NC 6 H 4 CF 3. This aniline is then converted to the urea. Flumetramide (6-[4-(trifluoromethyl)phenyl]morpholin-3-one), a skeletal muscle relaxant, is also prepared from ...
Trifluoromethanesulfonyl chloride (or triflyl chloride, CF3SO2Cl) can be used in a highly efficient method to introduce a trifluoromethyl group to aromatic and heteroaromatic systems, including known pharmaceuticals such as Lipitor. The chemistry is general and mild, and uses a photoredox catalyst and a light source at room temperature. [27]
The overall incidence of adverse drug reactions to sulfa antibiotics is approximately 3%, close to penicillin; [3] hence medications containing sulfonamides are prescribed carefully. Sulfonamide drugs were the first broadly effective antibacterials to be used systemically, and paved the way for the antibiotic revolution in medicine.
Cal Yee Farms' recall of some of its products last month has been increased to the highest risk level by the U.S. Food and Drug Administration (FDA) for three of its chocolate offerings.
Benzenesulfonyl chloride is an organosulfur compound with the formula C 6 H 5 SO 2 Cl. It is a colourless viscous oil that dissolves in organic solvents, but reacts with compounds containing reactive N-H and O-H bonds. It is mainly used to prepare sulfonamides and sulfonate esters by reactions with amines and alcohols, respectively. [1]
3,4,5-Trimethoxybenzaldehyde can be used as an intermediate in the synthesis of some pharmaceutical drugs including trimethoprim, [1] [2] cintriamide, roletamide, trimethoquinol (aka tretoquinol), and trimazosin as well as some psychedelic phenethylamines.
However, the use of dichloromethane is avoided since it can generate highly explosive azido-chloromethane and diazidomethane. The reaction may also instead be conducted in toluene, [3] acetonitrile, or pyridine. [4] Tf 2 O + NaN 3 → TfN 3 + NaOTf (Tf = CF 3 SO 2) An alternative route starts from imidazole-1-sulfonyl azide. [5]
The sulfonyl functional group (RS(O) 2 R') has become an important electron-withdrawing group for modern organic chemistry. α-Sulfonyl carbanions may be used as nucleophiles in alkylation reactions, Michael-type additions, and other processes. [3] After having served their synthetic purpose, sulfonyl groups are often removed.