Trifluoroacetic acid → Oxacyclotridecan-2-one

Beteiligte Stoffe

Reaktionsschritte

Cyclododecanone was treated with trifluoroacetic acid to form the lactone (Huisgen, R. et al., ibid), dodecanolid (yield 75%; bp 111°-115° C. at 8 mm). The lactone was hydrolyzed to form 12-hydroxydodecanoic acid (Smissman, E. et al., ibid) (yield 92%; mp 82°-4° C.). The hydroxy acid was converted to 12-bromododecanoic acid (VI) with 48% HBr in the presence of H2SO4 (Jocelyn, P. et al., ibid) (yield 88%; mp 52°-55° C.).

Herkunft & Nachweise