TY - GEN
T1 - Synthesis of symmetric ethers using monocationic and dicationic acidic ionic liquids
AU - Eglite, Ance
AU - Pudnika, Linda
AU - Balode, Marta Anda
AU - Prikšane, Anda
N1 - Publisher Copyright:
© 2018 Trans Tech Publications, Switzerland.
PY - 2018
Y1 - 2018
N2 - A series of monocationic and dicationic-SO3H functionalized Brønsted acidic ionic liquids (BAILs) were synthesized using different amines int. al., N,N,N',N'-tetramethylethylenediamine, 1-methylimidazole, pyridine, and alkylating agents: 1,3-propane- and 1,4-butanesultones. The Hammett acidity (H0) and thermal properties by TG-DSC techniques are investigated. These ionic liquids have been applied to catalyze the dehydration reaction of aliphatic long chain alcohols (1-heptanol, 1-octanol, 1-decanol) at 195 °C. The optimization of reaction conditions and the use of dicationic ionic liquids allow to reach rather high yields of symmetric diheptyl ether and dioctyl ether. The reusability of ionic liquids is evaluated using monocationic [PyPS][HSO4], dicationic [TMEDAPS][HSO4] ionic liquids, and 1-heptanol.
AB - A series of monocationic and dicationic-SO3H functionalized Brønsted acidic ionic liquids (BAILs) were synthesized using different amines int. al., N,N,N',N'-tetramethylethylenediamine, 1-methylimidazole, pyridine, and alkylating agents: 1,3-propane- and 1,4-butanesultones. The Hammett acidity (H0) and thermal properties by TG-DSC techniques are investigated. These ionic liquids have been applied to catalyze the dehydration reaction of aliphatic long chain alcohols (1-heptanol, 1-octanol, 1-decanol) at 195 °C. The optimization of reaction conditions and the use of dicationic ionic liquids allow to reach rather high yields of symmetric diheptyl ether and dioctyl ether. The reusability of ionic liquids is evaluated using monocationic [PyPS][HSO4], dicationic [TMEDAPS][HSO4] ionic liquids, and 1-heptanol.
KW - Aliphatic alcohols
KW - Brønsted acidic catalyst
KW - Dehydration reactions
KW - Dicationic ionic liquids
KW - Monocationic ionic liquids
UR - https://www.scopus.com/pages/publications/85043589961
U2 - 10.4028/www.scientific.net/KEM.762.104
DO - 10.4028/www.scientific.net/KEM.762.104
M3 - Conference paper
AN - SCOPUS:85043589961
SN - 9783035712384
T3 - Key Engineering Materials
SP - 104
EP - 108
BT - Materials Science and Applied Chemistry - 58th International Conference of Materials Science and Applied Chemistry, MSAC 2017
A2 - Kokars, Valdis
PB - Trans Tech Publications Ltd
T2 - 58th International Conference of Materials Science and Applied Chemistry, MSAC 2017
Y2 - 20 October 2017 through 20 October 2017
ER -