Definition of tosyl in English:

tosyl

Syllabification: tos·yl
Pronunciation: /ˈtäsəl
 
/

noun

  • [as modifier] Chemistry Of or denoting the toluene-4-sulphonyl radical —SO2C6H4CH3, used in organic synthesis.
    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.

Origin

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

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Word of the day skosh
Pronunciation: skəʊʃ
noun
a small amount; a little