Control of Selectivity in Palladium-Catalyzed Oxidative Carbocyclization/Borylation of Allenynes

• In control: A highly selective carbocyclization/borylation of allenynes with bis(pinacolato)diboron (B2pin2) under palladium catalysis and with p-benzoquinone (BQ) as the oxidant was developed. The use of either LiOAc⋅2 H2O with 1,2-dichloroethane (DCE) as the solvent or BF3⋅Et2O together with THF is crucial for the selective formation of borylated trienes and vinylallenes, respectively.

Ämnesord

NATURVETENSKAP  -- Kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences (hsv//eng)

Nyckelord

allenes

boronates

cyclization

oxidation

palladium

Publikations- och innehållstyp

ref (ämneskategori)

art (ämneskategori)