title: 4-(N,N-dimethylamino)pyridine-embedded nanoporous conjugated polymer as a highly active heterogeneous organocatalyst.
abstract: We report herein for the first time the incorporation of a versatile organocatalyst, 4-(N,N-dimethylamino)pyridine (DMAP), into the network of a nanoporous conjugated polymer (NCP) by the "bottom-up" approach. The resulting DMAP-NCP material possesses highly concentrated and homogeneously distributed DMAP catalytic sites (2.02 mmol  g(-1)). DMAP-NCP also exhibits enhanced stability and permanent porosity due to the strong covalent linkage and the rigidity of the "bottom-up" monomers. As a result, DMAP-NCP shows excellent catalytic activity in the acylation of alcohols with yields of 92-99 %. The DMAP-NCP catalyst could be easily recovered from the reaction mixture and reused in at least 14 consecutive cycles without measurable loss of activity. Moreover, the catalytic acylation reaction could be performed under neat and continuous-flow conditions for at least 536 h of continuous work with the same catalyst activity.
authors.affiliation: State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, PR China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Zhang
authors.forename: Yong
authors.initials: Y
authors.lastname: Zhang
authors.forename: Ya Lei
authors.initials: YL
authors.lastname: Sun
authors.forename: Xin
authors.initials: X
authors.lastname: Du
authors.forename: Jiao Yi
authors.initials: JY
authors.lastname: Shi
authors.forename: Wei David
authors.initials: WD
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Wang
mesh_terms: D015761:4-Aminopyridine / Q000031:analogs & derivatives* / Q000138:chemical synthesis / Q000737:chemistry; D002384:Catalysis; D015394:Molecular Structure; D049329:Nanostructures / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*
chemical_list: D011108:Polymers; D015761:4-Aminopyridine; C003885:4-dimethylaminopyridine