Nepal, Prabin published the artcilePolycationic Rh-JosiPhos Polymers Supported on Phosphotungstic Acid/Al2O3 by Multiple Electrostatic Attractions, Category: esters-buliding-blocks, the publication is ACS Catalysis (2022), 12(3), 2034-2044, database is CAplus.
Cationic Rh-JosiPhos complexes were tethered to crowded, ring-opening olefin metathesis (ROMP)-active norbornene groups. These monomers underwent facile, alternating ROMP (alt-ROMP) with cyclooctene as the co-monomer catalyzed by RuCl2(:CHPh)(PCy3)2 to form linear, polycationic copolymers. The polymers were readily absorbed by phosphotungstic acid (PTA) on Al2O3 via multiple electrostatic attractions between the cationic Rh centers in the polymer and the PTA anions on the Al2O3 support. The enantioselective hydrogenation of di-Me itaconate occurred with 100% conversion, 5000 turnovers per run, with up to 96% ee, and without significant Rh leaching over 10 reuses of the catalyst.
ACS Catalysis published new progress about 617-52-7. 617-52-7 belongs to esters-buliding-blocks, auxiliary class Alkenyl,Aliphatic hydrocarbon chain,Ester, name is Dimethyl itaconate, and the molecular formula is C7H10O4, Category: esters-buliding-blocks.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics