Topic
Tetrahydrofuran
About: Tetrahydrofuran is a research topic. Over the lifetime, 11778 publications have been published within this topic receiving 158241 citations. The topic is also known as: diethylene oxide & 1,4-epoxybutane.
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TL;DR: Two reliable and efficient routes to bis(pentafluorophenyl)borane, 1, are described in this paper, where the transfer agent Me2Sn(C6F5)2 is used to produce the chloroborane ClB(C 6F5), which is subsequently converted to 1 by treatment with a silane, and proceeds with an overall yield of 62%.
444 citations
TL;DR: The structure of the tetrahydrofuran/hydrogen sulfide double hydrate has been determined from three-dimensional single-crystal data as discussed by the authors, and the analysis confirmed the clathrate host lattice characteristic of 17 cubic (Type II) gas hydrates.
Abstract: The structure of the tetrahydrofuran/hydrogen sulfide double hydrate has been determined from three‐dimensional single‐crystal data. The analysis confirmed the clathrate host lattice characteristic of 17‐A cubic (Type II) gas hydrates. The hexakaidecahedral voids enclose tetrahydrofuran molecules which appear to undergo free rotation. Statistically, 46% of the pentagonal dodecahedra are occupied by hydrogen sulfide molecules.
406 citations
TL;DR: The 2-Methyltetrahydrofuran (MeTHF) as mentioned in this paper is a commercially available solvent that is produced from renewable resources, and it can be used as a solvent for low-temperature lithiation, for lithium aluminum hydride reductions, for the Reformatsky reaction, and for metal-catalyzed coupling reactions.
366 citations
TL;DR: In this article, the formation of polysulfide chains in certain aprotic media can be accomplished either by electrochemical reduction of S 8 or by direct in situ reaction with Li or Li 2 S.
331 citations
TL;DR: In this paper, the transition metal compounds including NiCl2(bpy) (bpy=2,2′-bipyridine), NiBr2(PPh3)2 (pPh3=triphenylphosphine), NiCl 2, CoCl2, FeCl2 and FeCl3 catalyze polycondensation of di-and polyhalogenated organic aromatic compounds by dehalogenation with magnesium under mild conditions.
Abstract: Transition metal compounds including NiCl2(bpy) (bpy=2,2′-bipyridine), NiBr2(PPh3)2 (PPh3=triphenylphosphine), PdCl2(bpy), NiCl2, CoCl2, FeCl2, and FeCl3 catalyze polycondensation of di- and polyhalogenated organic aromatic compounds by dehalogenation with magnesium under mild conditions. Poly(p-phenylene), poly(m-phenylene), poly(oxybiphenylene), and poly(phenylenemethylene) were prepared from p-dihalobenzene, m-dichlorobenzene, bis(p-bromophenyl) ether, and α,p-dichlorotoluene. They have a high degree of polymerization and high thermal stability. Poly(p-phenylene), poly(oxybiphenylene), and poly(phenylenemethylene) have regularly repeated structures as proved by IR spectroscopy and X-ray powder diffraction. Polymerization of polyhalogenated aromatic compounds (1,3,5-trichlorobenzene and hexachlorobiphenyl) in tetrahydrofuran (THF) gave copolymers having aromatic nuclei and THF units. Polymerization of the haloaromatic compounds is considered to proceed through a mechanism in which consecutive cycles of ...
329 citations