Brönsted acidic ionic liquid ([Hmim][HSO4]) as a green, efficient and reusable catalyst for the tetrahydropyranylation of alcohols
نویسندگان
چکیده مقاله:
A simple and mild method for tetrahydropyranylation of alcohols is reported at room temperature using a catalytic amount of 3-methylimidazolinium hydrogensulfate([Hmim]HSO4) as a green, efficient and reusable catalyst. Using solvent-free conditions, non-toxic and inexpensive materials, modest and clean work-up, short reaction times and high yields of the products are the advantages of this method.
منابع مشابه
brönsted acidic ionic liquid ([hmim][hso4]) as a green, efficient and reusable catalyst for the tetrahydropyranylation of alcohols
a simple and mild method for tetrahydropyranylation of alcohols is reported at room temperature using a catalytic amount of 3-methylimidazolinium hydrogensulfate([hmim]hso4) as a green, efficient and reusable catalyst. using solvent-free conditions, non-toxic and inexpensive materials, modest and clean work-up, short reaction times and high yields of the products are the advantages of this method.
متن کاملMild and efficient solvent-free tetrahydropyranylation (THP) of alcohols catalyzed by reusable acidic ionic liquid [Et3N(CH2)4SO3H][OTs]
A variety of alcohols readily add to 3,4-dihydro-2H-pyran under solvent free conditions in the presence of catalytic amount of acidic ionic liquid [Et3N(CH2)4SO3H][OTs] to afford the corresponding tetrahydropyranyl ethers in good to excellent yields at room temperature. The use of this procedure allows easy separation of the desired products ...
متن کاملMild and efficient solvent-free tetrahydropyranylation (THP) of alcohols catalyzed by reusable acidic ionic liquid [Et3N(CH2)4SO3H][OTs]
A variety of alcohols readily add to 3,4-dihydro-2H-pyran under solvent free conditions in the presence of catalytic amount of acidic ionic liquid [Et3N(CH2)4SO3H][OTs] to afford the corresponding tetrahydropyranyl ethers in good to excellent yields at room temperature. The use of this procedure allows easy separation of the desired products ...
متن کاملmild and efficient solvent-free tetrahydropyranylation (thp) of alcohols catalyzed by reusable acidic ionic liquid [et3n(ch2)4so3h][ots]
a variety of alcohols readily add to 3,4-dihydro-2h-pyran under solvent free conditions in the presence of catalytic amount of acidic ionic liquid [et3n(ch2)4so3h][ots] to afford the corresponding tetrahydropyranyl ethers in good to excellent yields at room temperature. the use of this procedure allows easy separation of the desired products from ionic liquid and recycling the ionic liquid. som...
متن کاملBrønsted Acidic Ionic Liquid: An Efficient and Reusable Catalyst for the Multi-Component Synthesis of Dihydropyrimidinones under Solvent-Free Conditions
An efficient and convenient procedure for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones and thiones by condensation of 1,3-dicarbonyl compounds, Aromatic and aliphatic aldehydes, and urea or thiourea in the presence of catalytic amount of Brønsted acidic ionic liquid 3-methyl-1-sulfonic acid imidazolium chloride {[Msim]Cl} under thermal solvent-free conditions reacted easily to afford the co...
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عنوان ژورنال
دوره 2 شماره 1
صفحات 23- 26
تاریخ انتشار 2012-01-01
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