mild and efficient solvent-free tetrahydropyranylation (thp) of alcohols catalyzed by reusable acidic ionic liquid [et3n(ch2)4so3h][ots]
نویسندگان
چکیده
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. some of the major advantages of this procedure are nonaqueous work-up, very good yields, catalytic amount of catalyst and reusability of ionic liquid.
منابع مشابه
Mild 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 ...
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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:
iranian journal of catalysisناشر: islamic azad university, shahreza branch
ISSN 2252-0236
دوره 4
شماره 3 2014
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