A novel class of polymers and oligomers of chiral folding chirality has been designed and synthesized,showing structurally compacted triple.column/multiple layer frameworks.Both uniformed and diferentiated aromatic ch...A novel class of polymers and oligomers of chiral folding chirality has been designed and synthesized,showing structurally compacted triple.column/multiple layer frameworks.Both uniformed and diferentiated aromatic chromophoric units were successfully constructed between naphthy!piers of this framework.Screening monomers,catalysts,and catalytic systems led 1o the success of asymmetric catalytic Suzuki-Miyaura polycouplings Enantio-and diastereochemistry were unambiguously determined by X-ray structural analysis and concurrently by comparison with a similar asymmetric induction by the same catalyst in the asymmetric synthesis of a chiral three layered product.The resuling chiral polymers exhibit intense fluorescence activity in a solid form and solution under speci fic wavelength irradiation.展开更多
基金supported by the Robert A.Welch Foundation(D-1361-20210327,USA)the National Natural Science Foundation of China(22071102 and 91956110).We thank Yangxue Liu and Liulei Ma for their synthesis assistance+1 种基金Prof.K.Hutchins and Mr.Q-X.Zheng for their assistance on GPC analysisand Prof.Y.Mechref,Dr.X.Gong,and Dr.M.Zabet for their assistance on the MALDI-TOF analysis.We thank Prof Andrei Yudin for helpful discussion.
文摘A novel class of polymers and oligomers of chiral folding chirality has been designed and synthesized,showing structurally compacted triple.column/multiple layer frameworks.Both uniformed and diferentiated aromatic chromophoric units were successfully constructed between naphthy!piers of this framework.Screening monomers,catalysts,and catalytic systems led 1o the success of asymmetric catalytic Suzuki-Miyaura polycouplings Enantio-and diastereochemistry were unambiguously determined by X-ray structural analysis and concurrently by comparison with a similar asymmetric induction by the same catalyst in the asymmetric synthesis of a chiral three layered product.The resuling chiral polymers exhibit intense fluorescence activity in a solid form and solution under speci fic wavelength irradiation.
