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Autor:
Giorgio Bianchi, Xingwang Fang, Nicola d'Alessandro, Heinz-Peter Schuchmann, Clemens von Sonntag, Famin Jin
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1862-1867
Radiolytically generated phenoxyl radicals derived from the structurally similar phenols cresol, tyrosine, tyramine and tyrosol were reacted with O2˙− [k = (1–4.5) × 109 dm3 mol−1 s−1, by pulse radiolysis] and the consumption of the phenol
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1577-1584
cis-Stilbene (cSt) and 1,1-diphenyl-2-picrylhydrazine (DPPH) were used as substrates for kinetic investigations of the catalytic system based on MnIII-porphyrins and peracetic acid in CH3CN. Catalysts employed were tetra-(2,6-dichlorophenyl)-porphyri
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :2531
Highly reactive methanesulfonates (mesylates, ROMs) have been prepared from 1-phenylethanol. cyclohex-2-en-1-ol, diphenylmethanol and p-methoxybenzyl alcohol by treatment with methanesulfonyl chloride and triethylamine in dichloro- or trichloro-metha
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1847
Reduction of trichloromethyl derivatives RCCl3[1, R = Ph; 2, R = PhC(O);3, R = EtOC(O)] with iron(II) chloride in acetonitrile, has been studied in order to examine the mechanism of the electron transfer (ET) process and the reactions of the radicals
Autor:
G. Adefikayo Ayoko, Colin Eaborn
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1289
The compound TsiSi(CHCH2)2Cl, (1)[Tsi =(Me3Si)3C] has been found to react with CsF, NaN3, KSCN, and KOCN in MeOH or MeCN to give TsiSi(CHCH2)2X compounds with X = F, N3, NCS, and NCO, respectively; in the reaction with KSCN in MeCN and CsF in MeOH, (
Autor:
Aleksander P. Mazurek
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1293
Calculations of electron density and other indices of reactivity have been performed for N-methyl-substituted xanthines using the Huckel, Del Re, and CNDO/2 methods. The considerable difference in chemical reactivity of theophylline, theobromine, and
Autor:
Mohammad Niyaz Khan
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :891
The reaction rates of the aqueous cleavage of maleimide in the presence of buffer solutions of trimethylamine, 1,4-diazabicyclo[2.2.2]octane, triethylamine, and triethanolamine have been studied at 30 °C. Both the ionized (S) and non-ionized (SH) fo
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :31
The reaction between bis-(4-nitrophenyl)methyl chloride and sodium hydroxide in aqueous dioxan under air gives tetrakis-4-nitrophenylethylene and 4,4′-dinitrobenzophenone, whereas the reaction under nitrogen yields the ethylene as the sole product.
Autor:
Ian D. R. Stevens, Neil P. Smith
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :1298
Chloro-methoxy- and -(2-methylpropoxy)-carbene are formed from 3-chloro-3-methoxy- and 3-(2-methylpropoxy)-diazirine, respectively. In the absence of carbene traps they fragment to give carbon monoxide and either methyl chloride or alkene and HCl. Th
Autor:
Spencer E. Taylor, John R. Jones
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :441
Detritiation rate constants from the C-8 position of adenosine 5′-monophosphate, adenosine 3′-monophosphate, adenosine 3′,5′-cyclic phosphate, and poly(adenosine 5′-monophosphate) have been measured over a pH range at 85°. The rate–pH pr