Synthesis of triazole-containing spiropolymer

Abstract

The invention relates to synthesis of a triazole-containing spiropolymer. The synthesis comprises steps as follows: 0.45 g of 2-methoxybenzoic acid and 0.67 g of EDCI are sufficiently dissolved with 10-20 ml of dichloromethane, a product and 0.5 g of an intermediate product 3 are sufficiently mixed and subjected to heating reflux, and the extent of reaction is observed with TLC (thin layer chromatography); a developing agent is prepared from acetone, petroleum ether and dichloromethane in the ratio being 1:1:1 for monitoring the reaction process; a solvent in a product obtained after the reaction is spin-dried by a rotary evaporator, solids are washed with water, and suction filtration and drying are performed; a product is dissolved with chloroform, a little trifluoroacetic acid is added,and nuclear magnetic analysis is performed.

Description

technical field [0001] The invention relates to the construction of triazole-containing helical polymers and belongs to the field of synthetic chemistry. Background technique [0002] The aromatic helical structure is too dense, and it is difficult to change to external stimuli. In order to break through these limitations, we adopt a synthesis strategy of linear polymerization and then cyclization, and obtain linear polymers by condensing dicarboxylic monomers with dihydrazides. The solubility of raw materials and linear polymerization avoid steric hindrance, which is conducive to the formation of high molecular polymers, and then undergoes one-step cyclization, coupled with hydrogen bonds and π-stacking of benzene rings, to bend the overall structure to obtain helical polymers. Simulating helical structures and developing their applications and functions in optical devices, enantiomer separation, asymmetric catalysis and other fields are hot fields in recent years. Scientis...

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Problems solved by technology

The reaction failed to synthesize the final product due to time constraints