نتایج جستجو برای: chlorinated phenols

تعداد نتایج: 16092  

2000
Thanas Schuman Shelby F. Thames

Chlorinated rubber, the addition and substitution reaction product of natural rubber and chlorine gas, is knOWn for its low Water vapor permeability, good chemical resistance, abrasion resistance, corrosion resistance, and flame retardant properties.' Consequently, it is used as a coating component in a.variety of coating applications including marine coatings, swimming pool coatings, and corro...

Journal: :Science 1983

Journal: :jundishapur journal of microbiology 0
isaac zamani department of biology, faculty of science, university of isfahan, isfahan, ir iran majid bouzari department of biology, faculty of science, university of isfahan, isfahan, ir iran; department of biology, faculty of science, university of isfahan, p. o . box: 81746-73441, isfahan, ir iran. tel: +98-3137932456, fax: +98-3167932456 giti emtiazi department of biology, faculty of science, university of isfahan, isfahan, ir iran maryam fanaei department of biology, faculty of science, university of isfahan, isfahan, ir iran

conclusions by combining the two tests, a rapid approach to estimation of most probable number of chlorinated methane utilizing bacteria is introduced. treatment by nanosilver particles was resulted in the easier and faster biodegradation of chloroform by bacteria. thus, degradation of these chlorinated compounds is more efficient compared to cometabolism. results most probable number of methyl...

Journal: :Chemical science 2013
Thanh Truong Olafs Daugulis

Two reactions of phenols with arynes have been developed. If LiTMP base is employed, arynes generated from aryl chlorides react with phenols to form helicenes. o-Arylation of phenols can be achieved by employing tBuONa base in the presence of AgOAc. Direct arylation of binol was achieved leading to the shortest pathway to o,o'-diarylbinols.

2010
Joseph DiGangi Arlene Blum Åke Bergman Cynthia A. de Wit Donald Lucas David Mortimer Arnold Schecter Martin Scheringer Susan D. Shaw Thomas F. Webster

Editorial The statement is signed by the individual scientists and other professionals listed separately below. Please note that the views expressed are those of the authors and signatories; institutional affili­ ations are provided for identification purposes only. Abbreviations and an Annotated Statement are available as Supplemental Material (doi:10.1289/ehp.1003089). We, scientists from a v...

Journal: :Chemical communications 2013
Wei Zeng Wanqing Wu Huanfeng Jiang Liangbin Huang Yadong Sun Zhengwang Chen Xianwei Li

Regioselective synthesis of polysubstituted benzofurans using a copper catalyst and molecular oxygen from phenols and alkynes in a one-pot procedure has been reported. The transformation consists of a sequential nucleophilic addition of phenols to alkynes and oxidative cyclization. A wide variety of phenols and alkynes can be used in the same manner.

Journal: :Environmental Health Perspectives 1982
A A Stevens

Inspection of the available literature reveals that a detailed investigation of the aqueous organic chemistry of chlorine dioxide and systematic identification of products formed during water disinfection has not been considered. This must be done before an informed assessment can be made of the relative safety of using chlorine dioxide as a disinfectant alternative to chlorine. Although trihal...

2017
Yajun Liu Shasha Liu Yan Xiao

Phenols and aryl thiols are fundamental building blocks in organic synthesis and final products with interesting biological activities. Over the past decades, substantial progress has been made in transition-metal-catalyzed coupling reactions, which resulted in the emergence of new methods for the synthesis of phenols and aryl thiols. Aryl halides have been extensively studied as substrates for...

Journal: :Journal of colloid and interface science 2003
Walton J Cabrera Marcela Urzúa Hernán E Ríos

The effect of phenols containing different electron-withdrawing substituents on the potentiometric responses of several liquid PVC membranes containing the complex trioctylmethylammonium-nitrate, TOMA(+)NO(3)(-), is analyzed. The results make it possible to separate these phenols into two groups; those phenols containing electron-releasing groups, which produce almost Nernstian slopes, and thos...

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