Метиламиловый эфир

Murasaki · 2 Сентября, 2016 в 22:41

Здравствуйте!

Подскажите, пожалуйста, можно ли заменить диэтиловый эфир на метиламиловый? В первую очередь интересно, может ли он заменить его как экстрагент? Можно ли в нём проводить реакции Гриньяра? Если у кого есть информация о нём, можете поделиться?

s324 · 3 Сентября, 2016 в 17:42

странный эфир.

но почему бы и нет ))

теперь модно в Гриньяра использовать циклопентилметиловый эфир и 2-метилТГФ

1.
Accessibility of the cellulose surface in nonswollen state

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By Skalicky, Cestmir; Cervenka, Evzen

From Vyskumne Prace z Odboru Papiera a Celulozy (1981), 26, 59-62. | Language: Czech, Database: CAPLUS

The accessibility of the pulp fiber surface to polar and nonpolar liqs. was studied using MeMgI-amyl ether assoc. (I) [84817-74-3] (Grignard reagent) capable of reaction with free OH groups, as a model liq. The penetration depth of I into cryst. sucrose [57-50-1] and parchment paper was 0.5 and 0.15 μ, resp. Pulp samples were penetrated into a depth of ∼ 0.15 μ. The penetration depth of I decreased with increasing orientation off the fiber structure. The size of the basic structural unit reacting with I was detd. for different pulp and cellulose [9004-34-6] samples.

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Organogrignards in 2-MeTHF: A cost-cutting path to greener technologies

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By Comanita, Bogdan; Aul, Rainer

From Chimica Oggi (2007), 25(4), 26-29. | Language: English, Database: CAPLUS

Switching processes from THF-based to 2-methyltetrahydrofuran (2-MeTHF) technol. provides a opportunity to move to greener technol. while simultaneously obtaining a sustainable competitive cost advantage. The article presents examples from organo-grignard applications and the advantages offered by 2-MeTHF to the stakeholders implicated in the solvent selection process. R&D and manufg. managers, public relations, environmental and safety officers will all find that 2-MeTHF will help them deliver better results. All these advantages are captured ultimately by reduced costs including (but not ...

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Process for preparation of organomagnesium reagents in O-donor solvents in high concentrations for organic synthesis.

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By Haber, Steffen; Hauk, Dieter; Dawidowski, Dirk; Rittmeyer, Peter; Roeder, Jens; Wietelmann, Ulrich

From Ger. Offen. (2007), DE 102007010956 A1 20070906. | Language: German, Database: CAPLUS

Organomagnesium compds. RMgX [R = (un)functionalized optionally fluoro- or chloro-substituted C1-20 alkyl(oxy), C2-20 alkenyl, C2-20 alkynyl, C3-8 cycloalkyl, cycloalkenyl, C3-12 (hetero)aryl; X = halo, CF3SO3, 4-MeC6H4SO3, preferably X = Cl, Br; excluding (substituted) allyl and benzyl Grignard reagents] as solns. in optionally mixed org. solvents preferably contg. 2-R1-5-R2-tetrahydrofuran [R1, R2 = H, C1-20 (un)functionalized alkyl, alkoxy, cycloalkyl, cycloalkoxy, C1-12 (hetero)aryl(oxy), excluding R1 = R2 = H] and 0-60 wt%, preferably 5-20 wt% of hydrocarbon solvent (benzene, toluene, xyl...