2209-92-9Relevant academic research and scientific papers
Methylation of Polyols with Trimethylphosphate in the Presence of a Lewis or Br?nsted Acid Catalyst
Duclos, Marie-Christine,Herbinski, Aurélien,Mora, Anne-Sophie,Métay, Estelle,Lemaire, Marc
, p. 547 - 551 (2018/01/16)
The alkylation of alcohols and polyols has been investigated with alkylphosphates in the presence of a Lewis or Br?nsted acid catalyst. The permethylation of polyols was developed under solvent-free conditions at 100 °C with either iron triflate or Aquivion PW98, affording the isolated products in yields between 52 and 95 %. The methodology was also adjusted to carry out peralkylation with longer alkyl chains.
A compound, said compound and catalyst solid catalyst component
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Paragraph 0068; 0069, (2018/02/04)
The invention discloses a compound with a novel structure. The structure of the compound is represented by formula (I); and in the formula (I), R1 to R4 can be same to or different from each other and are independently selected from substituted or non-substituted C1-C20 alkyl groups, and preferably substituted or non-substituted C1-C10 aliphatic groups, C3-C10 cycloalkyl groups, C6-C20 aryl groups and C7-C20 alkaryl groups, and R3 and R4 can be optionally connected to form a ring. The compound represented by formula (I) can be used as an internal electron donor compound to obtain a catalyst with excellent comprehensive performances. The catalyst can be used in olefin polymerization, especially propylene polymerization to obtain a satisfactory polymerization yield, has good hydrogen sensitivity and high stereospecificity, and is in favor of developing different types of polymers.
