The phosphorus/nickel ratio for 30 P-ligands and Ni(CO)4 as the catalytic system was varied over three orders of magnitude, and the effect upon the oligomerisation of 3-methyl-1-butyn-3-ol to yield dimers to tetramers was examined. With a catalytically effective ligand association, the formation...

Some platinum acetylides rans-(PPh3)2PtCl[CCC(CH3)2OH] and cis- and trans-(PPh3)2Pt[CCC(CH3)2OH]2 have been prepared by a new synthetic procedure. The structures have been assigned on the basis of their UV spectra and by a comparison of their spectra with those of the corresponding bis(t...

A new site-selective hydroarylation reaction of alkynes catalyzed by gold complexes and directed by an internal hydroxyl group has been developed. Thus, the treatment of 3-butyn-1-ol derivatives with indoles and a catalytic amount of an in situ formed cationic gold complex leads to the formation...

Electrochemical activation of carbon dioxide in aqueous solution is a promising way to use carbon dioxide as a C1 building block. Mechanistic studies in the gas phase play an important role to understand the inherent chemical reactivity of the carbon dioxide radical anion. Here, the reactivity o...

The microwave spectrum of 2-butynol, CH3CCCH2OH, has been investigated in the frequency range of 6–26.5 GHz. The spectra of the A and E torsional states were observed using Fourier transform microwave spectroscopy. Due to the presence of the cylindrically symmetric CC “spacer” bet...

This article presents the first study of the chemical reactivity of a photo-oxidation product of the 2-methyl-3-buten-2-ol (MBO) in the troposphere, the 2-hydroxy-2-methylpropanal (HMPr). Experiments were performed under controlled conditions for pressure (atmospheric pressure) and temperature (...

Silicon–glass microfabricated reactors containing silver catalyst were used for oxidative dehydrogenation of 3-methyl-2-buten-1-ol to the corresponding aldehyde. The reactors were safely operated in a wide range of oxygen concentrations, in a temperature range of 310–464∘C and residence times...

The reaction of 2-methyl-3-buten-2-ol (MBO) with Mu was investigated for the first time. The free-radical addition products of reactions with Mu are characterized by a combination of transverse field-μSR (TF-μSR) and level crossing resonance (LCR) methods. Density functional theory calculation...

The use of this material under current use conditions is supported by the existing information.This material was evaluated for genotoxicity, repeated dose toxicity, developmental toxicity, reproductive toxicity, local respiratory toxicity, phototoxicity, skin sensitization potential as well as e...

A toxicologic and dermatologic review of 3-methyl-2-buten-1-ol when used as a fragrance ingredient is presented.

Isobaric vapor–liquid equilibria (VLE) at 50, 60 and 70 kPa for the 2-methyl-3-buten-2-ol+ethanol and 2-methyl-3-buten-2-ol+1-butanol systems are reported. VLE data were correlated using the modified UNIQUAC equation with satisfactory results. Experimental vapor pressures of 2-methyl-3-buten-2-...

Emissions of Biogenic Volatile Organic Compounds (BVOCs) observed during 2007 from an experimental Pinus taeda plantation in Central North Carolina are compared with model estimates from the Model of Emissions of Gases and Aerosols from Nature (MEGAN) version 2.1. Relaxed eddy accumulation (REA)...

A toxicologic and dermatologic review of 2-methyl-3-buten-2-ol when used as a fragrance ingredient is presented.

The dimerisation of tribromoacetaldehyde in CCl4 and C6D12 solutions was investigated using Raman spectroscopy and different techniques of multivariate analysis. The ν(C–H) stretching vibration band in dimers was blue shifted by 14/15 cm−1, whereas the ν(CO) dimer band was red-shifted by 7/8 ...

The steam reforming and oxidative steam reforming of dimethyl ether (DME) were tested at 573–773 K over a CuZn/ZrO2 catalyst in microreactors with three different types of channels: ceramic square channels with side lengths of 900 and 400 μm, and silicon microchannels of 2 μm of diameter. The...

Syngas to ethanol, consisting of dimethyl ether (DME) carbonylation to methyl acetate (MA) over zeolites and MA hydrogenation to ethanol on copper catalyst, has been developed in recent years. DME carbonylation over zeolites, a key step in this new process, has attracted increasing attention due...

Catalytic conversion of syngas to dimethyl ether (DME) is modeled in a microchannel reactor comprised of horizontal groups of rectangular shaped cooling and catalyst washcoated reaction channels involving counter–current flows of air and syngas, respectively. The steady–state model, deviating ...

The bifunctional H-beta zeolite supported vanadium oxide catalysts were prepared at different calcination temperatures and investigated for dimethyl ether (DME) direct oxidation to polyoxymethylene dimethyl ethers (DMMx). The impact of the nature of VOx species and the acid properties controlled...

The aim of the present study is to explore the anti-inflammatory mechanism of lirioresinol B dimethyl ether via inhibition of multiple signaling pathways in both in vitro and in vivo pharmacological models. To determine the anti-inflammatory activity of the lirioresinol B dimethyl ether, RAW 264...

Dimethyl ether (DME) is heralded as the cleanest high-efficiency compression ignition fuel as a substitute for diesel. DME's autoignition property and high octane number are favorable to use it as a substitute for diesel and also LPG as a cooking fuel. DME can be synthesized from different ...