Ethyl but-3-ynoate as a versatile C2 building block🧩 Enables asymmetric (4+2)-heterocycloadditions with Michael acceptors⚡ Chiral isochalcogenoureas deliver highly functionalized #dihydropyrans with excellent selectivity in the study by Waser & co-workers✨
#organocatalysis

👉 buff.ly/NlVUSKk