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چکیده
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Metal-organic frameworks (MOFs) are architectural structures consisting of the coupling of a metal group and an organic group. These structures are composed of metal elements that are ionic inside or outside their core and organic ligands that coordinate with metals [1]. MOFs are used in various fields such as storage and transport of gases, separation of materials, removal of pollutants from the environment, synthetic catalysis and pharmaceuticals [2]. Spiropyrans are a class of organic compounds that contain two or more rings fused together at a single atom. One of the remarkable features of spiropyrans is their three-dimensional shape, which can provide structural rigidity and influence their chemical properties [3]. In this report, based on the characteristics of MOFs, especially the Ti-based MOFs, the aim is design and synthesize porous catalyst. The catalytic activity of (MOF-Ti)/TCT/Im/[CH2CO2H]Br in the preparation of spiropyrans was investigated as an important group of organic compounds with biological properties (Scheme 1).
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