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Which of the following is a very good ethylating agent for converting `R-OH` into `R-Oet`?A. `Et-(3)overset(+)(O)bar(B)F_(4)`B. `Et_(2)O`C. `Et_(2)overset(+)(O)-bar(B)F_(3)`D. `C_(2)H_(5)OH`

Answer» Correct Answer - A
Trialyloxonium fluoroborates, `R_(3)overset(+)(O)bar(B)F_(2)` are powerful alkylating reagents for nucleophilic substrates such as alcohol.
`RO-H overset(Et_(3)overset(+)(Obar(B)F_(4)))rarr RO - Et`


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