Glycosylation of benzenesulfinic acid with 1,2-dibromides was carried out using silver triflate as the promoter, and gave sulfinate esters as products by reaction at oxygen rather than at sulfur. The sulfinate esters were obtained as mixtures of stereoisomers at the stereogenic sulfur atom. ...
The addition rate constants (k1) of substituted benzenethiyl radicals to CH≡CR (R = Ph, n-C3H7, and COOCH3) have been determined by flash photolysis. The Hammett reaction constant (ρ+) was estimated for each alkyne: ρ+(CH≡CPh) = +1.38, ρ+(CH≡CC3H7) = +1.34, and ρ+(CH...
Addition Reaction (redirected fromaddition reactions) Dictionary Thesaurus Medical [ə′di·shən rē′ak·shən] (organic chemistry) A type of reaction of unsaturated hydrocarbons with hydrogen, halogens, halogen acids, and other reagents, so that no change in valency is observed and the ...
A photoinduced radical cyclization of benzene-tethered 1,7-enynes with Togni reagent in the presence of sodium iodide is developed. Under ultraviolet irrad... Y An,Y Kuang,J Wu - 《Cheminform》 被引量: 0发表: 2016年 ChemInform Abstract: Reaction of Dichlorocarbene with 2,3-Dihydro-5,6-dim...
24. Solvent effects on the transition state of the addition reaction of the p-aminobenzenethiyl free radical to styrene No abstract is available for this article. CW Fong,MJ Kamlet,RW Taft - 《Cheminform》 被引量: 1638发表: 1983年 Effect of sulphate addition on volatile fatty acid and ...
aThe products formed in the addition reaction ofn-butyllithium with excess DPE in benzene were characterized by size exclusion chromatography, electrospray mass spectrometry (ESI MS) and NMR spectroscopic techniques. The products were the monoadduct nBuDPEH (1,1-diphenylhexane) and the diadduct, nBu...
该中间体受热脱水和水解得到不饱和羧酸 The acetic anhydride loses the hydrogen atom under the alkali function, the production acetic anhydride anoin, this anoin and the benzene has the nucleophilic addition reaction to obtain the carboxyl group acid anhydride intermediate, this intermediate being heated...
23, No.9, pp 1029-1035 (1991) cis Addition Reaction of Thiophenol to Ethynylbenzene and Isomerization of Adduct as a Model of Poly(I ,4-benzenedithiol-co-1,4-diethynylbenzene) Eiichi KoBAYASHI, Hiroya TAKAYANAGI, Toyoshi OHASHI, and Junji FURUKAWA Department of Industrial Chemistry, Faculty ...
5. Polar effects in addition reactions of benzenethiyl radicals to su... For Abstract see ChemInform Abstract in Full Text. O Ito,M Matsuda - 《Journal of the American Chemical Society》 被引量: 192发表: 1982年 ChemInform Abstract: Tandem (2 + 2) Cycloaddition‐Cycloreversion Reactions in ...
In a further reaction of the latter with (CF3)3COCl, addition to the ring occurs to form [(CF3)3CO]2IC6F5[(CF 3)3CO]2Cl2. With C6F6, (CF3)3COCl gives C6F6[OC(CF3)3]2Cl 2. The new compounds are stable viscous liquids or low-melting solids.关键词: addition reactions ...