Triglyme Triethylene glycol

Tms (trimethylsilyl) = MejSi triglyme triethylene glycol dimethyl ether =... 

DMSO Dimethyl sulfoxide Triglyme Triethylene glycol dimethyl ether... 

Triethylene glycol dimethyl ether (triglyme) [112-49-2] 1.425. Refluxed with, and distd from sodium hydride or LiAlH4. 

Place 1.5 g of , -1,4-diphenyl-1,3-butadiene (from the Wittig reaction. Chapter 34) and 1.0 mL (1.1 g) of dimethyl acetylenedicarboxylate caution, skin irritant ) in a 25 x 150-mm test tube and rinse down the walls with 5 mL of triethylene glycol dimethyl ether (triglyme) (bp 222°C). Clamp the test tube in a vertical position, introduce a cold finger condenser, and reflux the mixture gently for 30 min. Alternatively, carry out the experiment in a 25-mL round-bottomed flask equipped with a reflux condenser. Cool the yellowish solution under the tap, pour into a separatory funnel, and rinse out the reaction vessel with a total of about 50 mL of ether. Extract twice with water (50-75 mL portions) to remove the high-boiling solvent, shake the ethereal solution with saturated sodium chloride solution, and dry the ether layer over anhydrous sodium sulfate. Filter or decant the ether solution into a tared 125-mL Erlenmeyer flask and evaporate the... 

Collect the solid on a small Buchner funnel and wash it with the chilled solvent to remove brown mother liquor. Transfer the moist, nearly colorless solid to a tared 125-mL round-bottomed flask and evacuate on the steam bath until the weight is constant the anthracene-triptycene mixture (mpabout 190-230°C) weighs 2.1 g.Addl gofmaleic anhydride and 20 mL of triethylene glycol dimethyl ether ( triglyme, bp 222°C), heat the... 

Alkanoyl- or l-benzoyl-2,2-difluorocyclopropanes rearrange to 3-fluoro-substituted furans in triethylene glycol dimethyl ether (triglyme) solution when heated under reflux ( 216°C). Thus, ran.r-l-benzoyl-2,2-difluoro-3-phenylcyclopropane (21) formed 3-fluoro-2,5-diphenyl-furan (22) in 76% yield (96% based on nonrecovered starting material). ... 

Thermolysis of dispiro[2.2.2.2]deca-4,9-diene (7) at 190°C in 2-methoxyethyl ether (diglyme) or triethylene glycol dimethyl ether (triglyme) gave a 70% yield of 1,4-diethylbenzene (10). ° From a study of the CIDNP effects shown by the product and reactant, two diradical intermediates 8 and 9 were postulated. 

Triethylene glycol dimethyl ether (triglyme) [112-49-2] M 178.2, b 225°, d4 0.987, np 1.425. Reflux it with, and distil it from sodium hydride or LiAlH4. [Beilstein 1IV 2401.]... 

Triethylene Glycol Dimethyl Ether (Triglyme) 216 Tetrahydrofuran 66 1.40... 

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