From evidence obtained by nuclear magnetic resonance, mass and infrared spectrometry, and chemical techniques, these compounds were identified as cis-4-decene-1, lodioic, cis,cis-4,7-decadiene-1, IO-dioic, cis-4-octene-1,8dioic, glutaric, and adipic acids, N-isovalerylglycine, and N-(methylenecyclopropyl)acetylglycine. (2 KE JOME JH YL ENE CYCLOPROP YL PROPIONiC CH =C8HCH 3 D COCOOH ACID / KMCP...

Abstract Six silica-supported phosphotungstic acid catalysts (PTA/SiO 2 ) of different composition (20–70 wt% PTA content) have been synthesized and characterized by elemental analysis, BET, BJH, NH 3 -TPD methods, FT-IR spectroscopy adsorbed pyridine 1 H MAS NMR techniques. The new composite were first applied in the Friedel–Crafts alkylation toluene with 1-octene as a benchmark process under ...

Propene polymerization with isotactic (iso)-specific C₂-symmetric rac-Me₂Si(2-Me-Benz(e)-Ind)₂ZrCl₂ (1) and rac-Me₂Si(2-Me-4-Ph-1-Ind)₂ZrCl₂ (2) were conducted under various conditions for achieving iso-specific living polymerization of propene. When Complex 1 was activated with trialkylaluminum-free modified methylaluminoxane (dMMAO) at -40 °C, the number-average molecular weight (Mn) linearly...

Nanometer-size menisci of organic liquids such as octane and 1-octene have been formed and used to confine chemical reactions. The application of a bias voltage between a conductive scanning probe tip separated a few nanometers from a silicon surface allows the field-induced formation of nanometer-size liquid menisci that can subsequently be used to fabricate nanometer-size structures. We repor...

Norborn-5-ene-(N,N-dipyrid-2-yl)carbamide (M1) was copolymerized with exo,exo-[2-(3-ethoxycarbonyl-7-oxabicyclo[2.2.1]hept-5-en-2-carbonyloxy)ethyl]trimethylammonium iodide (M2) using the Schrock catalyst Mo(N-2,6-Me₂-C₆H₃)(CHCMe₂Ph)(OCMe(CF₃)₂)₂[Mo] to yield poly(M1-b-M2). In water, poly(M1-b-M2) forms micelles with a critical micelle-forming concentration (cmc) of 2.8 x 10⁻⁶ mol L⁻¹; Reaction...

The use of non-supported Fe nanoparticles in the hydrogenation of unsaturated C-C bonds is a green catalytic concept at the frontier between homogeneous and heterogeneous catalysis. Iron nanoparticles can be obtained by reducing Fe salts with strong reductants in various solvents. FeCl(3) reduced by 3 equivalents of EtMgCl forms an active catalyst for the hydrogenation of a range of olefins and...

Colloidal suspensions of monodisperse platinum nanoparticles of 2 nm diameter have been used to catalyze the hydrosilylation of 1-octene with a polymethylhydrosiloxane. The nanoparticles were found to be as efficient as Karstedt's complex, showing that colloid formation from homogeneous species during hydrosilylation reactions is not necessarily a deactivation pathway. These results also reacti...