30771-74-5Relevant academic research and scientific papers
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
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Paragraph 0086; 0087; 0088, (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.
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.
Benzoquinones and Related Compounds. Part 6. Addition of Benzenesulfinic Acid to Substituted 1,4-Quinones
Bruce, J. Malcolm,Lloyd-Williams, Paul
, p. 2877 - 2884 (2007/10/02)
Benzenesulfinic acid adds to 1,4-quinones in the presence of trifluoroacetic acid affording phenylsulfonylhydroquinones.Addition occurs predominantly at the 6-position for methyl-, tert-butyl- and trifluoromethyl-1,4-benzoquinone, but at the 5-position for methoxy-1,4-benzoquinone.Addition to acyl-1,4-benzoquinones occurs exclusively at the 3-position, but under similar conditions phenylsulfonyl-1,4-benzoquinone affords a mixture of 2,3- and 2,6-bisphenylsulfonylhydroquinones, although the former becomes the sole product in the presence of an excess of trifluoraceticacid.These results are rationalised in terms of selective protonation of the quinone.Oxidation of the phenylsulfonylhydroquinones yields the corresponding quinones which with 1,3-dienes give the expected Diels-Alder adducts.
