23156-75-4Relevant academic research and scientific papers
Different strategies in electrochemical synthesis of new mono and di-substituted hydroquinone and benzoquinone
Nematollahi, Davood,Momeni, Shima,Khazalpour, Sadegh
, p. 310 - 318 (2014)
Electrochemical syntheses of 2-indolyl-5-arylsulfonyl-p-benzoquinone derivatives were carried out in two successive oxidation steps. The first involves the oxidation of hydroquinone, 4-(piperazin-1-yl) phenol) and 1-(4-(4-hydroxyphenyl) piperazin-1-yl) et
Green and mild laccase-catalyzed aerobic oxidative coupling of benzenediol derivatives with various sodium benzenesulfinates
Habibi, Davood,Rahimi, Abdollah,Rostami, Amin,Moradi, Sirvan
, p. 289 - 293 (2017)
The oxidative coupling reaction between hydroquinone or catechols and various sodium benzenesulfinates was investigated using the laccase from Trametes versicolor, in the presence of O2in a phosphate buffer solution at room temperature to afford sulfonyl benzenediols in 75–95% yield.
Electrochemical-In-Situ-Oxidative Sulfonylation of Phenols with Sulfinic Acids as an Access to Sulfonylated Hydroquinones
Sun, Xue,Zhang, Fanjun,Yan, Kelu,Feng, Wenfeng,Sun, Xuejun,Yang, Jianjing,Wen, Jiangwei
supporting information, p. 3485 - 3490 (2021/06/17)
The electrochemical in-situ oxidative sulfonylation of phenols with sulfinic acids access to sulfonylated hydroquinones has been developed. A series of sulfonylated hydroquinones were prepared under mild mediator-, catalyst- and exogenous-oxidant-free con
One-pot access to sulfonylated naphthalenediols/hydroquinones from naphthols/phenols with sodium sulfinates in an aqueous medium
Meng, Lingxin,Zhang, Ruike,Guan, Yuqiu,Chen, Tian,Ding, Zhiqiang,Wang, Gongshu,Reheman, Aikebaier,Chen, Zhangpei,Hu, Jianshe
supporting information, p. 610 - 614 (2021/01/25)
A one-pot method towards sulfonylated hydroquinones/naphthalenediols in an aqueous medium has been developed with up to 97% yield. The whole reaction requiring no transition-metal catalysts could proceed smoothly with hypervalent iodine compounds as the oxidant. Both naphthols and phenols were viable with inexpensive and readily available sodium sulfinates as the sulfonylation reagents under an ambient atmosphere. This procedure is scalable, and the products could be easily obtained without column chromatography isolation. This journal is
Bisketene Equivalents as Diels-Alder Dienes
Dissanayake, Isuru,Hart, Jacob D.,Becroft, Emma C.,Sumby, Christopher J.,Newton, Christopher G.
supporting information, p. 13328 - 13333 (2020/09/03)
2,5-Bis(tert-butyldimethylsilyloxy)furans are established as vicinal bisketene equivalents for application as dienes in the Diels-Alder reaction. Cycloaddition with olefinic dienophiles, under exceptionally mild conditions, enables convergent access to highly substituted para-hydroquinones in unprotected form via a one-pot Diels-Alder/ring-opening/tautomerization sequence. The synthesis of para-benzoquinones from acetylenic dienophiles, including benzynes, is also demonstrated, and 2,5-bis(tert-butyldimethylsilyloxy)pyrroles are established as competent dienes for the synthesis of para-iminoquinones. Application in natural product synthesis enables gram-scale access to the neuroprotective agent (±)-indanostatin.
Ammonium iodide-promoted unprecedented arylsulfonylation of quinone with sodium arylsulfinates
Yuan, Jin-Wei,Liu, Shuai-Nan,Qu, Ling-Bo
, p. 6763 - 6772 (2017/10/26)
A novel ammonium iodide-promoted arylsulfonylation of quinones with sodium arylsulfinates has been explored. This reaction proceeded smoothly through unique nucleophilic addition reaction and produced the arylsulfonylation products in moderate to good yields. The reactions proceeded efficiently over a broad range of substrates with good regioselectivity and functional group tolerance.
Preparation method for sulfonyl hydroquinone compound
-
Paragraph 0065; 0066; 0067, (2017/04/29)
The invention belongs to the field of organic synthesis, and in particular, relates to a preparation method for a sulfonyl hydroquinone compound. According to the preparation method, a cheap and easily obtained quinone compound is used as a raw material, stable and easy-to-preserve sulfonyl hydrazide is used as a sulfonylation reagent, metal-free catalysis is adopted, reaction conditions are environmentally friendly, the preparation process is simplified, and the yield is increased.
Metal-free sulfonylation of quinones with sulfonyl hydrazides in water: Facile access to mono-sulfonylated hydroquinones
Li, Bin,Li, Yaqin,Yu, Linqian,Wu, Xiaoyu,Wei, Wanguo
, p. 2760 - 2765 (2017/04/14)
This paper describes a simple and practical protocol for the direct synthesis of monosulfonylated hydroquinones through a transition-metal-free cross-coupling between quinones and sulfonyl hydrazides in water. The procedure tolerates a variety of quinones
Synthesis and characterization of a combined main-chain/side-chain liquid-crystalline polymer exhibiting both thermotropic and lyotropic characteristics and its lyotropic phase behavior
Zhou, Ming,Han, Chang Dae
, p. 9602 - 9609 (2008/02/01)
A combined main-chain/side-chain liquid-crystalline polymer (PSHQ4-7CNCOOH), which is composed of poly[(phenylsulfonyl-p-phenylenene 1,4-tetramethylene bis(oxybenzoate)] (PSHQ4) as the main-chain backbone and 8-[(4-cyano-4'-phenyl)oxy]octanoic acid (7CNCO
Ionic liquids-promoted addition of arylsulfinic acids to p-quinones: A green synthesis of diaryl sulfones
Yadav,Reddy,Swamy,Ramireddy
, p. 1849 - 1853 (2007/10/03)
Arylsulfinic acids undergo smooth conjugate addition to p-quinones in air- and moisture-stable second generation room temperature ionic liquid [bmim]BF4 under mild conditions to produce the corresponding arylsulfonylhydroquinones in excellent yields with high selectivity. In this reaction, ionic liquid plays the dual role as the solvent and the catalyst. The quinones show enhanced reactivity in ionic liquid thereby reducing the reaction times and improving the yields significantly. The presence of ionic liquids helps to avoid the use of either acid or base catalysts for this conversion. The recovered ionic liquid was reused for four to five times with consistent activity.
