1817-67-0Relevant articles and documents
Hart,Elia
, p. 3031 (1954)
Okamoto et al.
, p. 1770,1771-1776 (1974)
ORGANIC COMPOUNDS
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, (2021/09/11)
Disclosed are TRPM8 modulators as defined by formula (I) for achieving a cooling effect on skin and mucousa.
Catalytic synthesis of 4-methyl-2-(α-methyl benzyl) phenol over fe-al-mcm-41 for extraction-separation rubidium from brine
An, Lianying,Feng, Zhenhua,Huang, Zhenggen,Wang, Bengao,Zhao, Xianyin
, p. 141 - 147 (2020/10/06)
A new extractant 4-methyl-2-(α-methyl benzyl) phenol had been synthesized with styrene and p-cresol through the Friedel-Crafts alkylation reaction. Fe-Al- MCM-41 which was used as molecular sieves catalyst for the synthesis of the extractant was prepared by hydrothermal synthesis method and then characterized by FT-IR, XRD, NH3-TPD and N2 adsorption isotherm. The catalytic synthesis conditions of 4- methyl-2-(α-methyl benzyl) phenol such as reaction time, temperature and catalyst dosage were investigated. The conversion of styrene was about 81.2%, the target product yield and selectivity can reach 74.6% and 95.7% respectively. The structure of the 4-methyl-2-(α-methyl benzyl) phenol was confirmed by 1H-NMR. At the same time, 4-methyl-2-(α-methyl benzyl) phenol was used as extractant to separate rubidium from brine of which the rate of potassium to rubidium is 10:1 (CK+=10.0g/L, CRb+=1.0g/L). The experiment results show that the extractant has a great extraction performance to rubidium, the extraction yields of rubidium and potassium can reach 81.1% and 9.4% respectively. The separation factor of Rb+/K+ can reach up to 41.4.