نتایج جستجو برای: butene
تعداد نتایج: 827 فیلتر نتایج به سال:
1,4-bis(triphenylphosphonium)-2-butene dichloride was developed as a new phase transfer catalyst. This quaternized phosphonium salt catalyzed the regioselective ring opening of epoxides by thiocyanate ion to give β-hydroxy thiocyanates in high yields under mild conditions.
We report for the first time selective hydrogenation of 1,3-butadiene to butene using formic acid as hydrogen source with 1 wt% Pd/carbon in a continuous flow reactor.
Abstract Several supported liquid-phase (SLP) catalysts with immobilized Rh-biphephos complexes on monolithic supports were prepared and applied for continuous gas-phase hydroformylation (HyFo) of 1-butene. The support comprised macroporous silicon carbide (SiC) deposited silica nanoparticles (NPs) in order to provide mesopores enhanced capillary forces retain the liquid-phase. Variable paramet...
A series of N-alkyl 2,2'-dipyridylamine ligands of general formula (2-C5H3NR)2NR', (a): R = H, R' = Me; (b): R = H, R' = benzyl; (c): R = H, R' = methylcyclohexyl; (d): R = H, R' = neopentyl; (e): R = Me, R' = Me) were prepared by a modified method involving base-mediated N-alkylation with the respective alkyl halide. Reaction of the ligands, a-e, with NiCl2(DME) allowed for the isolation of μ-...
The overall rate constants of the NO reaction with chloroalkylperoxy radicals derived from the Cl-initiated oxidation of several atmospherically abundant alkenes-ethene, propene, 1-butene, 2-butene, 2-methylpropene, 1,3-butadiene, and isoprene (2-methyl-1,3-butadiene)-were determined for the first time via the turbulent flow technique and pseudo-first-order kinetics conditions with high-pressur...
New CO and H2O time histories were measured for 2-Methyl-1-Butene (2M1B) behind reflected shock waves. The experimental setup was developed to simultaneously obtain carbon monoxide water from the oxidation of 2M1B in 99.5% He/Ar (20% He 79.5% Ar). experiments carried out at three different equivalence ratios (? = 0.5, 1.0, 2.0) pressures temperatures ranging 1.15 atm 1.32 1414 K 1894 K, respect...
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