Borrowing hydrogen: iridium-catalysed reactions for the formation of C–C bonds from alcohols
Abstract
Alcohols have been employed as substrates for C–C bond-forming reactions which involve initial activation by the temporary removal of hydrogen to form an aldehyde. The intermediate aldehyde is converted into an alkene via a Horner–Wadsworth–Emmons reaction, nitroaldol and aldol reactions. The ‘borrowed hydrogen’ is then returned to the alkene to form a C–C bond.