Gallium triflate is a stable reusable Lewis acid catalyst.

This paper studies the alkylation reaction of the high content 1-penpene and 2-MB2 in the light catalytic cracking gasoline under the mixture acid between sulfuric acid and trifluoromethanesulfonic acid.

In the presence of trifluoromethanesulfonic salt,tetramethoxytoluene(Ⅱ) reacted with allylic derivatives(Ⅲ)to afford the aimed product in moderate to high yields under moderate condition.

Synthesis of phenolic oxazolines and some related compounds under the catalysing of ytterbium triflate;