Method for preparing a compound comprising two phenyl groups by reacting a bisfuranic compound with a dienophile, wherein the dienophile is an alkene according to formula (IIIa) or an alkyne according to formula (IIIb) or wherein R 5 is an electron withdrawing group EWG, and in case of an alkyne according to formula (IIIb), R 5 is EWG or selected from the group consisting of H, a halogen, a heteroatom functional group and an optionally substituted and/or optionally heteroatom containing C 1 -C 40 hydrocarbyl group, wherein R 4 is H, linear or branched C 1 -C 8 -alkyl, or EWG, wherein EWG is independently selected from the group consisting of -CN, -NO 2, -CO 2 X, -C NX, -C(=NY)X, CF 3, CCl 3,CBr 3, CI 3, -SO 2 X, -SO 3 X, -COH, -COX, -COF, -COCl, -COBr, -COI, wherein X and Y are independently selected from the group consisting of H, and linear or branched C 1 -C 8 -alkyl, optionally substituted with halogens and optionally polymer-supported, wherein the compound comprising two phenyl groups has the formula if the alkene dienophile is used; or if the alkyne dienophile is used; wherein R 1 is selected from a covalent bond or R 1A - R 1C: wherein each R 2 is independently H, a heteroatom, a halogen, or linear or branched C 1 - Cs alkyl, wherein said alkyl is optionally further substituted by halogens and/or heteroatoms; wherein each R 3 is independently selected from the group consisting of H, a halogen, a heteroatom functional group and an optionally substituted and/or optionally heteroatom containing C 1 -C 40 hydrocarbyl group, wherein two of said R 3 can be joined to form a ring, or wherein two of said R 3 groups on the same atom are combined to form a substituent having a double bond with said atom; and wherein R 6 is selected from the group consisting of a heteroatom functional group and optionally substituted and/or optionally heteroatom containing C 1 -C 40 hydrocarbyl group. wherein R 5 is an electron withdrawing group EWG, and in case of an alkyne according to formula (IIIb), R 5 is EWG or selected from the group consisting of H, a halogen, a heteroatom functional group and an optionally substituted and/or optionally heteroatom containing C 1 -C 40 hydrocarbyl group, wherein R 4 is H, linear or branched C 1 -C 8 -alkyl, or EWG, wherein EWG is independently selected from the group consisting of -CN, -NO 2, -CO 2 X, -C NX, -C(=NY)X, CF 3, CCl 3,CBr 3, CI 3, -SO 2 X, -SO 3 X, -COH, -COX, -COF, -COCl, -COBr, -COI, wherein X and Y are independently selected from the group consisting of H, and linear or branched C 1 -C 8 -alkyl, optionally substituted with halogens and optionally polymer-supported, wherein the compound comprising two phenyl groups has the formula if the alkene dienophile is used; or if the alkyne dienophile is used; wherein R 1 is selected from a covalent bond or R 1A - R 1C: wherein each R 2 is independently H, a heteroatom, a halogen, or linear or branched C 1 - Cs alkyl, wherein said alkyl is optionally further substituted by halogens and/or heteroatoms; wherein each R 3 is independently selected from the group consisting of H, a halogen, a heteroatom functional group and an optionally substituted and/or optionally heteroatom containing C 1 -C 40 hydrocarbyl group, wherein two of said R 3 can be joined to form a ring, or wherein two of said R 3 groups on the same atom are combined to form a substituent having a double bond with said atom; and wherein R 6 is selected from the group consisting of a heteroatom functional group and optionally substituted and/or optionally heteroatom containing C 1 -C 40 hydrocarbyl group.