16011-97-5Relevant articles and documents
Molecularly imprinted artificial esterases with highly specific active sites and precisely installed catalytic groups
Hu, Lan,Zhao, Yan
supporting information, p. 5580 - 5584 (2018/08/17)
A difficult challenge in synthetic enzymes is the creation of substrate-selective active sites with accurately positioned catalytic groups. Covalent molecular imprinting in cross-linked micelles afforded such active sites in protein-sized, water-soluble nanoparticle catalysts. Our method allowed a systematic tuning of the distance of the catalytic group to the bound substrate. The catalysts displayed enzyme-like kinetics and easily distinguished substrates with subtle structural differences.
High power organic cathodes using thin films of electropolymerized benzidine polymers
Truong, Thanh-Tam,Coates, Geoffrey W.,Abru?a, Héctor D.
supporting information, p. 14674 - 14677 (2015/09/28)
Thin films of benzidine polymers were electrochemically deposited directly onto conductive substrates by oxidative coupling of di- and trianilinoalkane monomers. The electropolymerization and electrochemical properties of the polymers were optimized by varying the alkyl linker. Polymer films exhibited two reversible one-electron transfers at high potentials (>3.3 V vs. Li/Li+) and maintained discharge capacities in excess of 150 mA h g-1 even when discharged in under 4 seconds.
Stereoselective aldol additions of achiral ethyl ketone-derived trichlorosilyl enolates
Denmark, Scott E.,Pham, Son M.
, p. 5045 - 5055 (2007/10/03)
Methods for the preparation of geometrically defined enoxy(trichlorosilanes) derived from ethyl ketone enolates have been developed. The addition of enoxy(trichlorosilanes) (trichlorosilyl enolates) to aldehydes proceeds with good yields in the presence of catalytic amounts of chiral phosphoramides. The reaction of Z-trichlorosilyl enolates to aryl aldehydes affords aldol products with good to excellent diastereo- and enantioselectivities. Phosphoramide-catalyzed aldol additions lacked substrate generality providing modest selectivities with unsaturated and aliphatic aldehydes. In all cases, the phosphoramide-catalyzed aldol addition of E-trichlorosilyl enolates to aldehydes provided good yields with moderate to good stereoselectivities.
