Diphenyl ether was formed in aqueous tert-butanol solutions of chlorobenzene and bromobenzene in the presence of phenoxide ions. An increase in the temperature of irradiation resulted in an increase in the yields of phenol and diphenyl ether. At a temperature higher than 150掳C, chain reactions ...
obtained by using chlorobenzene as the solvent at 100 °C (entry 19). Hydrochlorocarbonylation of alkenes With the optimized reaction conditions in hand, the scope of the hydrochlorocarbonylation have been explored (Fig.2). Under the conditions for the synthesis of branched acid chlorides, Pd...
Through measurements on the respective methylethers (anisoles) the O–H bond of 2,4,6-TCP turns out to be 5 kcal/mol, and that in PCP 4 kcal/mol, less strong than O–H in phenol itself. On this basis it is concluded that––in contrast with earlier proposals––displacements such ...
The dipole moment change for 8- hydroxyquinoline on passing from cyclohexane to 1,Cdioxan is -0.3 D decrease while the 0-H stretching frequency (3) exhibits only an 18 cm-' change on passing from n-hexane to 1,4-dioxan, whereas for phenol it is 307 cm-l. It seemed of interest to ...
According to the Hay patents, the polyphenylene ether resins are prepared by oxidative coupling of the correspondingly-substituted phenol in the presence of oxygen and a complexed copperamine catalyst. The reaction is preferably carried out in a diluent for both the phenolic compound and the complexed...
(PAR) resin, a phenoxy resin, polycarbonate, a cellulose acetate resin, an ethyl cellulose resin, a polyvinyl butyral, a polyvinyl formal, a polyvinyl toluene, a poly-N-vinyl carbazole, an acryl resin, a silicone resin, an epoxy resin, a melamine resin, an urethane resin, a phenol resin...
Formation of pentachlorophenol as the major product of microsomal oxidation of hexachlorobenzene. Biochem Biophys Res Commun. 1985;126:25-32.Ommen van B, Bladeren PJ van, Temmink JHM, Müller F (1985) Formation of pentachloro- phenol as the major product of microsomal oxidation of ...
Sonication of aqueous chloroform with phenol present produced chlorophenols, and with benzene present produced phenol, chlorobenzene and chlorophenols. These results are significant for the evaluation of sonication as a method of eliminating chlorinated organic compounds from water. They also have ...
As a consequence, formation of "dioxins" from halogenated phenols, in (slow) combustion, should proceed by combination of two (halo)phenoxy radicals rather than by displacement of (ortho-)halogen in a halophenol molecule.doi:10.1002/(SICI)1099-0690(199901)1999:13.0.CO;2-IIzabela Wiater...
The thermal decomposition of peroxydisulfate in deoxygenated, nitrobenzene-saturated aqueous solutions of chlorobenzene, bromobenzene, and tert-butylbenzene gave o- and p-nitrophenols, whereas fluorobenzene, iodobenzene, phenol, and chlorophenols gave no nitrophenols. With nitrobenzene alone, no nitrophenols ...