Minckler Jr., Leon SEby, Lawrence TUS2995545 * 1957年9月30日 1961年8月8日 Exxon Research Engineering Co Method of brominating butyl rubber in the presence of heterocyclic tertiary amines, product obtained, and vulcanized product thereof
Under the optimal conditions, most of α-bromo and α-bromoacetal of acetophenones were selectively obtained in excellent yields.关键词: α-Bromination α-bromoacetalization tribromide resin polymeric brominating agent DOI: 10.1080/00397911.2019.1631348 ...
Then they were applied to catalyze brominating reaction of 1,7-heptanediol, moreover the rate of brominating reaction with different catalysts was compared. The results showed that catalytic activities of CTAB/MCM-41 and CTAB-Nafion/MCM-41 are better than CTAB, and that of CTAB-Nafion/MCM-...
Bejerano et al., " The Use of Adsorbed Bromine as a Brominating Agent in Organic Reaction—The Production of Mono and Dibrompenols ", Electrochimica Acta, vol. 21 (no month, 1976), pp. 231-237.*Bejerano et al., " The Use of Adsorbed Bromine as a Brominating Agent in Organic ...
In vivo brominating activity by Eucheuma denticulatum was compared with its production of volatile halocarbons. The ability of the alga to brominate phenol red showed good correlation ( p < 0.05, r = 1.0) to the production of bromoform (CHBr 3 ) estimated by gas chromatography. The ...
The use of adsorbed bromine as a brominating agent in organic reaction—the production of mono and dibromophenolsdoi:10.1016/0013-4686(76)80011-4The electrochemical bromination of phenol was conducted in acid solutions on platinum and platinized titanium. The extent of substitution could be ...
Brominating styrenic polymer with bromine chloride in presence of an antimony halide catalyst and solvent ; using hydrochloric acid to extract antimony catalyst residues, separating acidic aqueous phase and organic phase; concentrating acidic aqueous phase; solvent exchanging; reduced insoluble solidsUS ...
Freeman, StephenHayes, DougSmith, GordonTapolczay, DavidTaylor & FrancisSynthetic CommunicationsBright R, Coote SJ, Freman S. 5- Bromobarbituric acid: a mild and selective monobrominating agent employed in the synthesis of the gastrin antagonist GR174152. Syn Commu 1996; 16: 4195- 4209....
Hexabromocyclododecane with enhanced gamma isomer content is produced by brominating cyclododecatriene in a liquid medium comprised of (1) at least 50 wt % of at least one liquid inert organic solvent other than 1,4-dioxane having a solubility in water of at least 1 wt % at 25° C., ...
This therapy is recommended in phenformin-induced lactic acidosis.doi:US2875254 AFrederick J GradisharUSUS2875254 * Jan 13, 1954 Feb 24, 1959 Du Pont Process for brominating and fluorinating halogenated methanes in a refractory alumina reaction zone...