Aromatic sulphonation. Part 74. Sulphonation of some 9-alkenylanthracenes and the corresponding benzenes with dioxan–SO<sub>3</sub>
作者:Freek van de Griendt、Hans Cerfontain
DOI:10.1039/p29800000023
日期:——
The sulphonation of six alkenylarenes with dioxan–SO3 in dioxan has been studied at 17 °C. With the substrates 9-vinyl-(3a), 9-(prop-2-enyl)-(3b), and 9-[(E)-but-2-enyl]-anthracene (3c), and (E)-prop-1- and -2-enylbenzene (3d and e) unsaturated pyrosulphonic acids are obtained with the double bond at C-α and the pyrosulphonic acid group at C-β- for the substrates (3a, b, d, and e), and the double bond
已经在17°C下研究了在二恶烷中用二恶烷– SO 3磺化六种烯基芳烃的方法。具有底物9-乙烯基-(3a),9-(丙-2-烯基)-(3b)和9-[(E)-丁-2-烯基]-蒽(3c)和(E)-获得了用于底物(3a,b,d和e)的具有C-α双键和位于C-β-的焦磺酸基团的丙-1-烯丙基和丙烯基(3d和e)不饱和焦磺酸对于(1c),C-β处的双键和C- γ处的焦磺酸基团。除了少量的上述焦磺酸外,丙-2-烯基衍生物(3b和e)还产生主要为2-芳基丙-1-烯-3-磺酸的底物(3d),顺式和反式为底物(3d)。-环状磺酸盐磺酸酐的异构体(5d)。所有这些磺基产物都是由于SO 3对侧链双键的直接攻击而产生的。9-[(E)-丙-1-烯基]蒽产生的主要产物为(E)-1-(9-蒽基)丙-1-烯-3-磺酸钠。提示该产物是由SO 3在蒽基10位上的初始进攻所致,随后是先前论文中提出的反应顺序。将当前研究的蒽衍生物的
Unusual Inhibition Effect of 1-(1-Naphthyl)-1-methylethylhydroperoxide on the Liquid-Phase Oxidation of Isopropylarenes. GC−MS and Theoretical Studies of the Thermal Decomposition of 1-Naphthyl- and 1-Anthryl-1-methylethylhydroperoxides
have thus far never been described as thermaldecomposition products of 1-aryl-1-methylethylhydroperoxides. The plausible mechanism of the formation of 2-(1-aryloxy)propenes was proposed on the basis of AM-1 calculations of the possible rearrangement paths of the alkoxy radicals derived from the investigated hydroperoxides. The mechanism explains the inhibition effect of 1-(1-naphthyl)-1-methylethylhydroperoxide