Département de chimie moléculaire

The transformation of aldehydes into terminal olefins through redn. of the corresponding enol triflates is described. The method is effective with both linear and $\alpha$-branched aldehydes. Thus, PhCHMeCHO reacted with (F3CCO)2O in ClCH2CH2Cl contg. 2,6-di-tert-butyl-4-methylpyridine at 70° for one hour to give a crude enol triflate which was directly treated with HCO2H in DMF contg. Pd(OAc)2(PPh3)2 and Bu3N to give 65{%} PhC(Me):CH2. [on SciFinder(R)]