Wang, Chang-An; Li, Yan-Wei; Han, Yin-Feng; Zhang, Jian-Ping; Wu, Ren-Tao; He, Guo-Fang published the artcile< The ""bottom-up"" construction of chiral porous organic polymers for heterogeneous asymmetric organocatalysis: MacMillan catalyst built-in nanoporous organic frameworks>, Name: 3-(4-Bromophenyl)acrylaldehyde, the main research area is chiral porous polymer organocatalyst enantioselectivity.
Although many porous organic polymers (POPs) embedded with chiral ligand-metal catalytic activities have been examined as heterogeneous asym. catalysts, examples of metal-free stereoselective POP catalysts are very scarce. Herein, we report a “”bottom-up”” strategy used to construct a MacMillan catalyst-embedded chiral porous organic polymer, Mac-CPOPs. The porosity of the Mac-CPOPs frameworks could be adjusted by varying the mol. length of the rigid structural monomers. Due to the high Brunauer-Emmett-Teller sp. surface area and the built-in character of the covalently linked MacMillan catalyst, the Mac-CPOP-2 polymer can be applied as a highly efficient and recoverable heterogeneous organocatalyst in the asym. Diels-Alder reaction, which gives products in good yields and with good enantioselectivity. Moreover, the Mac-CPOP-2 polymer can be reused 6 times for the asym. Diels-Alder reaction without any significant loss of catalytic activity and enantioselectivity.
Polymer Chemistry published new progress about Adsorption. 3893-18-3 belongs to class bromides-buliding-blocks, and the molecular formula is C9H7BrO, Name: 3-(4-Bromophenyl)acrylaldehyde.
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary