139183-76-9

Upstream product

• 528869-11-6 1,2,4,5-tetrafluoro-3-(1,3-dioxol-2-yl)-6-formylbenzene 
• 1333327-25-5 C₉H₄F₄O 
• 1333327-24-4 C₁₁H₈F₄O₂ 

Downstream Products

• 1333327-27-7 C₂₅H₂₀F₈O₄ 
• 1333327-28-8 C₂₁H₁₆F₄O₄ 
• 1333327-26-6 C₂₁H₁₂F₈O₄ 

Relevant academic research and scientific papers

Fluorinated styrene-based monomers for cyclopolymerizations

The synthesis of versatile fluorine compounds and monomers for conducting polymer research and cyclopolymerizations is presented. Semiprotected 2,3,5,6-tetrafluoroterephthaldehyde 1 could be elaborated through Wittig olefination chemistry, deprotection and reduction to the previously unknown 4-vinyl-2,3,5,6-tetrafluorobenzylalcohol 8 in good yields. Compound 8 can be reacted to form the malonate ester, and then alkylation on the malonate moiety in mild conditions affords difunctional monomer 3. Through sequential esterifications on the malonate moiety, and subsequent alkylation, compound 4, a difunctional monomer for cyclopolymerization bearing one styrene and one perfluoroaryl styrene moiety, has been obtained. Preliminary experiments show that it is possible to cyclopolymerize 4 under free radical conditions.

Method for producing cyclopropanecarboxylates

There is provided a method for producing a cyclopropanecarboxylate of formula (1): 1which comprises contacting a cyclopropanecarboxylate of formula (2): 2with a monohydroxy compound of formula (3):R7OH??(3)in the presence of a lithium compound of formula (4):R8OLi??(4),wherein R1, R2, R3, R4 and R5 each independently represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted aryl group; R6 represents an alkyl group having 1 to 10 carbon atoms or a substituted or unsubstituted phenyl group; R7 and R8 do not simultaneously represent the same and each independently represent a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group.