Phase Selectively Soluble Dendritic Derivative of 4-(Dimethylamino)-pyridine: An Easily Recyclable C

A new thermomorphic catalytic system for the Baylis-Hillman coupling of aromatic aldehydes with α, β-unsaturated ketone has been described, in which the alkyl-functionalized dendritic catalyst preferred to dissolve in non-polar organic layer in the thermomorphic biphasic system, leading to easy separation of the catalyst from the polar products by changing the temperature of the system at end of the reaction.