Synthetic method for optically pure double-helix oligomeric tetra-benzocyclooctene substances

The invention discloses a synthetic method for optically pure double-helix oligomeric tetra-benzocyclooctene substances. The synthetic method comprises the following steps: (1) carrying out oxidative cross-coupling on diiodo dimethoxy biphenyl (51) and 2,2',6,6'-biphenyl tetrabromide (97) to obtain 1,16-dibromo-8,9-dimethoxy tetra-benzocyclooctene (96); (2) splitting the compound (96), thus obtaining optically pure (S, S)-96 and (R, R)-96; (3) taking the compound (96) as a raw material, synthesizing an intermediate (116) containing 6 benzene rings; (4) splitting the intermediate (116) to obtain (M)-116 and (P)-116; (5) making the optically pure (S, S)-96 and (M)-116 reacted to obtain target products, namely (M) -117, (M)-149 and (M)-150; and/or: making the (R, R)-96 and (P)-116 reacted to obtain target products, namely (P)-117, (P)-149 and (P)-150. 本发明公开了种光学纯的双螺旋寡聚四苯并环辛四烯类物质的合成方法，包括如下步骤：(1)由二碘二甲氧基联苯(51)和2,2',6,6'-四溴代联苯(97)交叉氧化偶联得1,16-二溴-8,9-二甲氧基四苯并环辛四烯(96)；(2)对化合物(96)进行拆分，得到光学纯的(S,S)-96和(R,R)-96；(3)以化合物(96)为原