Nucleophilic Substitution of Sulfonates

For further reactions including displacement of the sulfonyl group with a labelled fluorine atom, see refs 191-193. The next homolog, tetraethylammonium fluoride has been also used for nucleophilic substitution of sulfonates. 3 /f-(Tosyloxy)-5 a//-androstan-l 7-one (7) on refluxing with tetraethylammonium fluoride in acetone yields 3a-fluoro-5a//-androstan-l 7-one (8) in 78% yield.194... [Pg.588]

Solvolyses or nucleophilic substitutions of sulfonate esters of the allylic/homoal-lylic 13-a-alcohol of 5-0-(tert-butyldimethylsilyl)-22,23-dihydroavermectin... [Pg.72]

Potassium salt Nucleophilic substitution of sulfonic acid groups... [Pg.390]

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