Abstract: | Acetylene‐functionalized platform chemicals were synthesized from biomass‐derived 5‐hydrohymethylfurfural (HMF). Demanding mono‐ and bis‐ethynylfurans were obtained in high yields (89–99 %). Applications of these products in the synthesis of smart organic conjugated materials and pharmaceuticals were examined in a series of transformations. Conjugated polyacetylenic polymers with morphology control have been prepared by incorporation of the HMF core. |