The electron-deficient olefin 2,2-bis(trifluoromethyl)ethylene-1,1-dicarbonitrile: hydride abstractions from allyl and isobutenyl ethers and thioethers

Substitutions and dehydrogenations by 2,

Substitutions and dehydrogenations by 2,2-bis(trifluoromethyl)-ethylene-1,1-dicarbonitrile via hydride abstraction

✍ Reinhard Brückner; Rolf Huisgen 📂 Article 📅 1991 🏛 Elsevier Science 🌐 French ⚖ 291 KB

Substitution of benzylic H by the title compound (BTF) gives rise to products with -CH(CF3)2 terminus exclusively; an intermediate benzylic ion pair results from hydride transfer. Instead of ion recombination, proton transfer may be the concluding step generating dehydrogenation products and 2,2-bis