TY - JOUR
T1 - A novel and efficient process for preparation of 2,4-diphenyl-4-methyl-1- pentene in brönsted acidic ionic liquid [Hmim]+BF 4-
AU - Zhang, Peng Rong
AU - Du, Ji Yan
AU - Yang, Fan
AU - Zou, Gang
AU - Tang, Jie
PY - 2005/5
Y1 - 2005/5
N2 - Highly selective dimerization of α-methylstyrene (AMS) was effected using a Brönsted acidic ionic liquid, [Hmim]+BE4 -, as solvent as well as catalyst, providing the industrial high-value olefin, 2,4-diphenyl-4-methyl-1-pentene (1-PT). The desired dimer 1-PT could be obtained in 90% yield at 96% conversion in the dimerization of AMS under optimized conditions. Features of the procedure include use of readily available ionic liquid-catalyst, exclusion of volatile organic solvents, higher selectivity and efficiency for 1-PT.
AB - Highly selective dimerization of α-methylstyrene (AMS) was effected using a Brönsted acidic ionic liquid, [Hmim]+BE4 -, as solvent as well as catalyst, providing the industrial high-value olefin, 2,4-diphenyl-4-methyl-1-pentene (1-PT). The desired dimer 1-PT could be obtained in 90% yield at 96% conversion in the dimerization of AMS under optimized conditions. Features of the procedure include use of readily available ionic liquid-catalyst, exclusion of volatile organic solvents, higher selectivity and efficiency for 1-PT.
KW - 2,4-diphenyl-4-methyl-1-pentene
KW - Dimerization of α-methylstyrene
KW - Ionic liquid
UR - https://www.scopus.com/pages/publications/20044395117
U2 - 10.1002/cjoc.200590581
DO - 10.1002/cjoc.200590581
M3 - 文章
AN - SCOPUS:20044395117
SN - 1001-604X
VL - 23
SP - 581
EP - 583
JO - Chinese Journal of Chemistry
JF - Chinese Journal of Chemistry
IS - 5
ER -