Abstract

The oxa-Michael addition of Morita–Baylis–Hillman adducts and derivatives has been investigated for the first time to afford various types of polymeric and oligomeric products derived from Michael acceptors and aldehydes catalyzed by Cs2CO3/CuCl2, t-BuOK, or an N-heterocyclic carbene. The reactions proceeded through multiple reaction modes, including dehydration polycondensation, selective oxa-Michael addition polymerization, and SN2′ reaction, depending on the monomer structures.

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