Search results
Results from the WOW.Com Content Network
Structure of the chloromethyl group. In organic chemistry, the chloromethyl group is a functional group that has the chemical formula −CH 2 −Cl. The naming of this group is derived from the methyl group (which has the formula −CH 3), by replacing one hydrogen atom by a chlorine atom. Compounds with this group are a subclass of the ...
Benzyl chloride is prepared industrially by the gas-phase photochemical reaction of toluene with chlorine: [3]. C 6 H 5 CH 3 + Cl 2 → C 6 H 5 CH 2 Cl + HCl. In this way, approximately 100,000 tonnes are produced annually.
Electrophilic fluorinating reagents could in principle operate by electron transfer pathways or an S N 2 attack at fluorine. This distinction has not been decided. [2] By using a charge-spin separated probe, [3] it was possible to show that the electrophilic fluorination of stilbenes with Selectfluor proceeds through an SET/fluorine atom transfer mechanism.
PhN=N-N(CH 2) 5 + 2 HF → PhF + N 2 + [(CH 2) 5 NH 2]F. Historical note: in Wallach's era, the element fluorine was symbolized with "Fl". Thus, his procedure is subtitled "Fluorbenzol, C 6 H 5 Fl". [1] On the laboratory scale, PhF is prepared by the thermal decomposition of the benzenediazonium tetrafluoroborate: PhN 2 BF 4 → PhF + BF 3 + N 2
The half-life of this substance in terms of volatilization in the river, lagoon and lake is 2.1 h, 25 h and 18 days, respectively. [ 20 ] [ 21 ] The amount of methyl chloride in the stratosphere is estimated to be 2 × 10 6 tonnes per year, representing 20–25% of the total amount of chlorine that is emitted to the stratosphere annually.
The structure of xylylene dichloride is characterized by an benzene ring with two chloromethyl groups and four hydrogen atoms bound to it. [4] The chloromethyl groups can be located on different sites on the ring, leading to a few different possible forms. These forms are: [3] o-xylylene dichloride: 1,2-bis(chloromethyl)benzene
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 ...
[1] [2] [3] This reaction is a traditional route to fluorobenzene and some related derivatives, [4] including 4-fluorobenzoic acid. [ 5 ] The reaction is conceptually similar to the Sandmeyer reaction , which converts diazonium salts to other aryl halides (ArCl, ArBr). [ 6 ]