Modak, Arindam; Mondal, John; Aswal, Vinod K.; Bhaumik, Asim published the artcile< A new periodic mesoporous organosilica containing diimine-phloroglucinol, Pd(II)-grafting and its excellent catalytic activity and trans-selectivity in C-C coupling reactions>, HPLC of Formula: 4396-13-8, the main research area is phloroglucinol diimine Schiff base palladium complex mesoporous silicate preparation; stereoselective heterogeneous Heck catalyst periodic mesoporous silicate phloroglucinol palladium.
A new organosilane precursor was designed via Vilsmeier-Haack formylation of phloroglucinol followed by its Schiff base condensation with (3-aminopropyl)triethoxysilane (APTES). A novel organic-inorganic hybrid periodic mesoporous organosilica (PMO) LHMS-3 containing the highly coordinating bis(propyliminomethyl)phloroglucinol moiety inside the pore wall was synthesized by using this precursor organosilane mol. Phenolic-OH and imine-N donor sites present in this PMO material were used to anchor Pd(II) species at the surface of the mesopores. Small angle neutron scattering, XRD, HR TEM, SEM, 13C and 29Si solid state MAS NMR, UV-visible and FTIR spectroscopic tools were used to characterize the 2-dimensional-hexagonal mesophase and the presence of the bis(propyliminomethyl)phloroglucinol moiety inside the pore wall. This Pd-anchored material Pd-LHMS-3 showed excellent catalytic activity and trans-selectivity in Heck C-C bond formation reactions for the synthesis of value-added aromatic and aliphatic olefins.
Journal of Materials Chemistry published new progress about Heck reaction (stereoselective). 4396-13-8 belongs to class alcohols-buliding-blocks, and the molecular formula is C8H6O5, HPLC of Formula: 4396-13-8.
Referemce:
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