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tosyl Line breaks: tosyl
Pronunciation: /ˈtəʊsʌɪl/

Definition of tosyl in English:


[as modifier] Chemistry
Of or denoting the toluene-4-sulphonyl radical —SO2C6H4CH3, used in organic synthesis: tosyl chloride
More example sentences
  • In all experiments superparamagnetic particles of 4.5-m diameter (Dynabeads, Dynal, Hamburg, Germany) exhibiting reactive tosyl groups on the surface were used as magnetic tweezers.
  • The choice of TsSePh, rather than a tosyl halide, as the precursor of tosyl radical is based on the greater stability of the resulting selenides with respect to elimination compared to the halides.


1930s: from German, from to(luol) and s(ulphon)yl.

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