Catalyst for: · Preparation of chromans and (E,E)-1,3-dienes via reaction of γ-substituted allenoates with aldehydes · Solvent-free Heck reactions Cocatalyst in: · Regioselective carbomagnesiation of terminal alkynes and enynes with alkyl Grignard reagents · Rhodium-catalyzed coordination-assisted regioselective alkenylation of aromatic C-H bonds with terminal silylacetylenes · Rhodium-catalyzed hydrogenation reactions · Platinum-catalyzed allylation reactions Catalyst for: · Preparation of chromans and (E,E)-1,3-dienes via reaction of γ-substituted allenoates with aldehydes · Solvent-free Heck reactions Cocatalyst in: · Regioselective carbomagnesiation of terminal alkynes and enynes with alkyl Grignard reagents · Rhodium-catalyzed coordination-assisted regioselective alkenylation of aromatic C-H bonds with terminal silylacetylenes · Rhodium-catalyzed hydrogenation reactions · Platinum-catalyzed allylation reactions