An Approach to Functionally Embellished o -Alkynylbenzoates or Furan-3(2 H )-ones from Diynones and DMAD: Controlled Divergence and Product Selectivity.

The discovery of reaction regime controlled product diversification in a one-pot reaction between diynones and dimethyl-1,3-acetonedicarboxylate (DMAD) to selectively furnish either functionally unique pentasubstituted o -alkynylbenzoates or fully substituted furan-3(2 H )-ones is delineated. The potential of these two versatile platforms to enter new utilitarian chemical space has also been explored.