Toluene-dichloromethane

Isolated yield. A, CFjOF in CCI3F at — 60 to — 80° with or without CaO B, F2 in Ar (or N2—CCI3F) at — 78° B, F2 in N2—HjO at room temperature C, Xep2-BF3 OEt2 in ether, benzene, toluene, dichloromethane, or a mixture of some of them (0° to room temperature). Yield of the deprotected compound after hydrolysis. " 2,2-Difluoro compound, Estimated from the final 2-deoxy-2-fluoroglycose. 

In a recent study, poly(aryl ether) dendritic branches terminated with triethyleneglycol chains were attached to Cgg [66] dendrimer 32 represents the fourth generation. The photophysical properties of these fullerodendrimers have been systematically investigated in three solvents, namely toluene, dichloromethane, and acetonitrile. On increasing dendrimer generation, it has been found that in each solvent (i) the maximum of the fullerene fluorescence band is red-shifted... 

Methoxypolyethylene glycol of molecular weight 5000 (Union Carbide, 60 g, 12 mmol), dried by azeotropic removal of toluene, was dissolved in toluene/dichloromethane (3 1, 200 mL) and treated with a toluene solution of phosgene (30 mL, 57 mmol) overnight. The solution was evaporated to dryness and the remainder of phosgene was removed under vacuum. The residue was redissolved in toluene/dichloromethane (2 1, 150 mL) and treated with solid N-hydroxysuccinimide (2.1 g, 18 mmol) followed by triethylamine (1.7 mL, 12 mmol). After 3 h the solution was filtered and evaporated to dryness. The residue was dissolved in warm (50 °C) ethyl acetate (600 mL), filtered from a trace of insolubles and cooled to facilitate precipitation of the polymer. The product was collected by... 

Toluene, dichloromethane, acetic acid, ammonium hydroxide, concentrated H2SO4, 5 N NaOH and 37% HCI were purchased from Mallinckrodt Inc. tetrahydrofuran, tert-butyl alcohol, anhydrous Na2S04, and NaCI were purchased from EM Science potassium tert-butoxide was purchased from Aldrich Chemical Company, Inc. hexanes was purchased from Baxter, and dry O2 was purchased from Air Products. All these reagents were used as received. 

Process Improvements. Phase 1 Benzene was replaced with a safer solvent, toluene, which was also used for the [2 + 2] cycloaddition reaction, thus facilitating the telescoping of the two reactions. However, dichloromethane was added during the work-up to prevent product precipitation. The product was ciystallized from 2-propanol in 80% yield. The phase I of development eliminated the use of benzene and allowed for telescoping of the two chemical steps. However, a solvent exchange from toluene-dichloromethane to 2-propanol was still needed to crystallize the product. The color of the product after this modification was dark-brown. 

Either protic (alcohols, preferentially methanol) or aprotic solvents (toluene, dichloromethane, THE) can be used, depending on the structure of the metal precursors that can generate the catalysts by a number of pathways. Metals other than palladium, for example nickel [4], can form active catalysts for alkene/CO copolymerisation, yet with largely lower productivities as compared to structurally similar palladium precursors [1]. For this reason, only Pd"-catalysed alkene/CO copolymerisation reactions are reviewed and commented in the present chapter. 

Tetracarbonylfoctahydrotriborato(l-)] manganese is an air-sensitive liquid that decomposes slowly (about 5% in 4 days) at room temperature as a neat liquid in a vacuum. It is soluble in benzene, toluene, dichloromethane, diethyl ether, and tetrahydrofuran (THE), but decomposes upon heating at reflux in these solvents (especially in THF). Gas-phase thermal decarbonylation or solution photodecarbonylation of (CO)4Mn(B3H8) yields the novel and reactive compound (CO)3Mn(B3H8), in which the octahydrotriborate(l-) ligand is tridentate.3... 

The product is air- and moisture-stable for extended periods of time. It is quite soluble in most of the organic solvents, such as toluene, dichloromethane, and... 

The complex Cl3(dme)W=CC(CH3)3 is a blue-purple air-sensitive solid. It is essentially insoluble in pentane, but soluble in toluene, dichloromethane. 

The complex Ir(C6H4PPh2)HCl(PPh3)2, 1, is somewhat air sensitive as a solid. It dissolves readily in benzene, toluene, dichloromethane, and acetone. 

O 16.06% active 0 8.04%. The commercial product of the Lucidol Div, contains a minimum of 95.0% of dilauroyl peroxide with. min active O 3.76%. It consists of wh soft granules with mp 48—50° insol in w si sol in alcohols sol in esters, vegetable oils and petr solvents very sol in chlorobenzene, chlf, CS2, CC14, toluene, dichloromethane, ethylenedichlotide and trichloroethylene. 

Compound ib log p L /Pa Hexadecane (apolar) Solvent l log KM(yjf in parentheses)" Toluene Dichloromethane n-Octanol (monopolar, (bipolar, (bipolar) H-A) primarily H-D) Methanol (bipolar) Ethyleneglycol (bipolar)... 

Hexane, cyclohexane, carbon tetrachloride, trichloroethylene, toluene, dichloromethane, chloroform, diethyl ether, ethyl acetate, acetone, propanol, ethanol, methanol. 

Basic techniques for speciation analysis are typically composed of a succession of analytical steps, e.g. extraction either with organic solvents (e.g. toluene, dichloromethane) or different acids (e.g. acetic or hydrochloric acid), derivatisa-tion procedures (e.g. hydride generation, Grignard reactions), separation (gas chromatography (GC) or high-performance liquid chromatography (HPLC)), and detection by a wide variety of methods, e.g. atomic absorption spectrometry (AAS), mass spectrometry (MS), flame photometric detection (FPD), electron capture detection (ECD), etc. Each of these steps includes specific sources of error which have to be evaluated. 

The reaction is also utilized for cross-linking between vinyl-substituted siloxanes and oligomeric hydrosilanes in the production of room-temperature vulcanizable sihcone rubber. Reaction can be carried out without solvents, but common solvents such as benzene, toluene, dichloromethane, THF, and acetonitrile can be employed as well. A wide variety of 1-alkenes are hydrosilated regiospecifically to give... 

Solubility insol propionitrile sol toluene, dichloromethane, and nitroe thane. 

Solvent effects significantly influence this novel ene process, as illustrated by the cyclization of malo-nate (176b) (177b Y = C02Me). Whereas no reaction took place in toluene, dichloromethane or... 

Polyesters 26 represent the first ferrocene-containing liquid crystal polymers [28]. These copolymers were found to be insoluble in THF, toluene, dichloromethane, chloroform, p-chlorophenol, and tetrachloroethane. The terephthaloyl chloride/iso-phthaloyl chloride ratio was maintained constant (7 3), but the content of the ferrocene unit was varied from 0 to 100%. 

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