Application of 1,4-bis(3-methylimidazolium-1-yl)butane ditribromide [bMImB]·(Br3)2 ionic liquid reagent for selective oxidation of sulfides to sulfoxides

RSC Advances ◽  
2015 ◽  
Vol 5 (86) ◽  
pp. 70265-70270 ◽  
Author(s):  
Abbas Amini Manesh ◽  
Fereshteh Hosseini Eshbala ◽  
Saba Hemmati ◽  
Hojat Veisi
Keyword(s):  
Ionic Liquid ◽  
Selective Oxidation ◽  
Alkyl Aryl ◽  
Mild Conditions ◽  
Oxidation Of Sulfides ◽  
High Yields ◽  
Aryl Sulfides ◽  
Efficient Reagent

1,4-Bis(3-methylimidazolium-1-yl)butane ditribromide [bMImB]·(Br3)2 as an efficient reagent is used for the selective oxidation of dialkyl and alkyl aryl sulfides to the corresponding sulfoxides in high yields under mild conditions.

Selective Oxidation of Thioureas in an Ionic Liquid by Employing an Ion-supported Hypervalent Iodine(III) Reagent

2005 ◽  
Vol 2005 (9) ◽  
pp. 613-616 ◽  
Author(s):  
Weixing Qian ◽  
Erlei Jin ◽  
Weiliang Bao ◽  
Yongmin Zhang
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Selective Oxidation ◽  
Good Yield ◽  
Hypervalent Iodine ◽  
Mild Conditions

Several 2,4-dialkyl-3,5-bis(arylimino)-1,2,4-thiadiazolidines were synthesised under mild conditions in good yield by the selective oxidation of N-alkyl-N'-arylthioureas by using 1-(4-diacetoxyiodobenzyl)-3-methyl imidazolium tetrafluoroborate [dibmim]+[BF4]- in ionic liquids.

scholarly journals Cs2CO3/[bmim]Br as an Efficient, Green, and Reusable Catalytic System for the Synthesis of N-Alkyl Derivatives of Phthalimide under Mild Conditions

2008 ◽  
Vol 2008 ◽  
pp. 1-4 ◽  
Author(s):  
Alireza Hasaninejad ◽  
Abdolkarim Zare ◽  
Ahmad Reza Moosavi-Zare ◽  
Fatemeh Khedri ◽  
Rahimeh Rahimi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Catalytic System ◽  
Reaction Times ◽  
Catalytic Amount ◽  
Conjugate Addition ◽  
Reaction Conditions ◽  
Mild Conditions ◽  
Alkyl Derivatives ◽  
High Yields ◽  
Derivatives Of

Aza-conjugate addition of phthalimide to α,β-unsaturated esters efficiently achieves in the presence of catalytic amount of Cs2CO3 and ionic liquid 1-butyl-3-methylimidazolium bromide ([bmim]Br) under mild reaction conditions (70°C) to afford N-alkyl phthalimides in high yields and relatively short reaction times.

A highly effective and mild protocol for the production of 1-thioamidoalkyl-2-naphthols using 1,3-disulfonic acid imidazolium trifluoroacetate as a dual-functional catalyst

2018 ◽  
Vol 73 (5) ◽  
pp. 289-293 ◽  
Author(s):  
Mostafa Karami ◽  
Abdolkarim Zare
Keyword(s):  
Ionic Liquid ◽  
Reaction Time ◽  
Reaction Times ◽  
Solvent Free ◽  
Disulfonic Acid ◽  
One Pot ◽  
Mild Conditions ◽  
Dual Functional ◽  
Highly Effective ◽  
High Yields

AbstractA solvent-free protocol for the production of 1-thioamidoalkyl-2-naphthols via a one-pot multi-component reaction of arylaldehydes with 2-naphthol and thioacetamide using the ionic liquid 1,3-disulfonic acid imidazolium trifluoroacetate ([Dsim][TFA]) is described. Furthermore, a plausible and attractive mechanism based on the dual functionality of the catalyst is proposed. Because of the dual functionality of [Dsim][TFA] (possessing acidic and basic sites), it is found to be generally highly effective, affording the products in high yields and short reaction times under mild conditions. We claim that this is one of the best protocols for the synthesis of 1-thioamidoalkyl-2-naphthols (in terms of yield, temperature, conditions, and/or the reaction time).

scholarly journals Efficient and selective oxidation of sulfides in batch and continuous flow using styrene-based polymer immobilised ionic liquid phase supported peroxotungstates

RSC Advances ◽  
2016 ◽  
Vol 6 (77) ◽  
pp. 73118-73131 ◽  
Author(s):  
S. Doherty ◽  
J. G. Knight ◽  
M. A. Carroll ◽  
A. R. Clemmet ◽  
J. R. Ellison ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Selective Oxidation ◽  
Continuous Flow ◽  
High Selectivity ◽  
Oxidation Of Sulfides

Good conversion and high selectivity for sulfoxidation have been achieved under segmented and continuous flow using a polystyrene-based polymer immobilised ionic liquid phase (PIILP) peroxotungstate.

3-Carboxypyridinium chlorochromate – aluminium chloride — An efficient and inexpensive reagent system for the selective oxidation of sulfides to sulfoxides and sulfones in solution and under microwave irradiation

2005 ◽  
Vol 83 (2) ◽  
pp. 115-121 ◽  
Author(s):  
Iraj Mohammadpoor-Baltork ◽  
Hamid R Memarian ◽  
Kiumars Bahrami
Keyword(s):  
Microwave Irradiation ◽  
Functional Groups ◽  
Selective Oxidation ◽  
Lewis Acid ◽  
Aluminium Chloride ◽  
Double Bonds ◽  
Oxidation Of Sulfides ◽  
Efficient Reagent

3-Carboxypyridinium chlorochromate (CPCC) in the presence of aluminium chloride is a very efficient reagent for the selective oxidation of sulfides to sulfoxide and sulfones in solution and under microwave irradiation. It is noteworthy that different functional groups including carbon–carbon double bonds, ketones, oximes, aldehydes, ethers, and acetals were tolerated under these reaction conditions.Key words: sulfoxides, sulfones, oxidation, chlorochromate, Lewis acid.

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