64732-18-9Relevant academic research and scientific papers
Selective oxidation method of thioether
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Paragraph 0054; 0055; 0056, (2018/09/20)
The invention relates to a selective oxidation method of thioether, and discloses a novel synthesis method of a single sulfone compound shown as a formula (I). According to the invention, thioether shown in a formula (II) is taken as a raw material, under existence of tert-butyl hydroperoxide, an oxidation reaction is carried out in a solvent, after the reaction is completed, and through post-treatment, the single sulfone compound shown as the formula (I) is obtained. Compared with the prior art, an oxidizing agent tert-butyl hydroperoxide which is friendly to environment is employed, usage ofa metal catalyst is avoided, the reaction condition is mild, selectivity is high, the operation is simple, the applicability is wide, and the reaction yield is high.
Copper-catalyzed asymmetric oxidation of sulfides
O'Mahony, Graham E.,Ford, Alan,Maguire, Anita R.
, p. 3288 - 3296 (2012/05/20)
Copper-catalyzed asymmetric sulfoxidation of aryl benzyl and aryl alkyl sulfides, using aqueous hydrogen peroxide as the oxidant, has been investigated. A relationship between the steric effects of the sulfide substituents and the enantioselectivity of th
Benzo(b)thiophene derivatives and process for producing the same
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, (2008/06/13)
The present invention is 3,4-disubstituted-benzo[b]thiophene derivatives represented by general formula (I) and processes for preparing compounds represented by general formula (V) from compounds represented by general formula (IV), preparing a mixture of compounds represented by the following formula (II) and the following formula (III) and preparing the benzo[b]thiophene derivatives represented by the above formula (I). wherein, R1 and R2 represent each a halogen atom, a trihalomethyl group, a C1-4 alkyl group or a C14 alkoxy group; X represents a hydroxy group or a halogen atom; R3 and R4 represent each a hydrogen or a halogen atom, a trihalomethyl group, a C1-4 alkyl group or a C1-4 alkoxy group; and R5 represents a C1-3 alkyl group or a trifluoromethyl group.
