Triflyl group

In organic chemistry, the triflyl group (systematic name: trifluoromethanesulfonyl group) is a functional group with the formula R−SO2CF3 and structure R−S(=O)2−CF3.

The triflyl group is often represented by –Tf.

The related triflate group (trifluoromethanesulfonate) has the formula R−OSO2CF3, and is represented by –OTf.

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