Oxidation of dibenzothiophene by hydrogen peroxide or monopersulfate and metal–sulfophthalocyanine catalysts: an easy access to biphenylsultone or 2-(2′-hydroxybiphenyl)sulfonate under mild conditions
作者:Nicola d'Alessandro、Lucia Tonucci、Monica Bonetti、Milena Di Deo、Mario Bressan、Antonino Morvillo
DOI:10.1039/b212152b
日期:——
catalytic over-oxidation of 2-hydroxybiphenyl, with ring fission and formation of various oxidation products, among them carbon dioxide, oxalic and benzoic acid, was also observed. Among the various MPcS catalysts examined (M=Fe, Co and Ru), the ruthenium derivative exhibited the best performances with persulfate and iron derivative with hydrogen peroxide; in both cases the slow step of the process consisted
Electrochemical Synthesis of Sultone Derivatives via Dehydrogenative C–O Bond Formation
作者:Koichi Mitsudo、Yasuyuki Okumura、Kotaro Yohena、Yuji Kurimoto、Eisuke Sato、Seiji Suga
DOI:10.1021/acs.orglett.3c01062
日期:2023.5.19
Electrochemical dehydrogenative C–O bond formation for the synthesis of sultones was achieved. In the presence of K2CO3 and H2O, constant current electrolysis of [1,1′-biphenyl]-2-sulfonyl chloride afforded an aryl-fused sultone quantitatively. Under the optimized conditions, a variety of sultone derivatives were obtained. Control experiments suggest that the electrochemical oxidation of the sulfonates
实现了用于合成磺内酯的电化学脱氢 C-O 键形成。在K 2 CO 3和H 2 O存在下,恒流电解[1,1'-联苯]-2-磺酰氯定量得到芳基稠合磺内酯。在优化条件下,得到了多种磺内酯衍生物。对照实验表明,原位产生的磺酸盐的电化学氧化会提供磺基中间体。
Cullinane et al., Recueil des Travaux Chimiques des Pays-Bas, 1937, vol. 56, p. 627,629
作者:Cullinane et al.
DOI:——
日期:——
Preparation, characterization, and flash vacuum pyrolysis of dibenz[c,e][1,2]oxathiin 6-oxide (biphenylene sultine)
作者:Thomas G. Squires、Clifford G. Venier、Brian A. Hodgson、Laurence W. Chang、Franklin A. Davis、Thomas W. Panunto