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Microwave exposure problems

The preparation of 1,3-dialkylimidazolium halides by conventional heating in solvent under reflux requires several hours to afford reasonable yields and also uses a large excess of alkyl halides and/or organic solvents as the reaction medium. To circumvent these problems Varma and coworkers [106] investigated the preparation of a series of ionic liquids 72 (Scheme 8.74), using microwave irradiation as the energy source, by simple exposure of neat reactants, in open containers, to microwaves by use of an unmodified household MW oven (240 W). [Pg.287]

See other pages where Microwave exposure problems is mentioned: [Pg.180]    [Pg.319]    [Pg.58]    [Pg.184]    [Pg.133]    [Pg.19]    [Pg.190]    [Pg.331]    [Pg.906]    [Pg.59]    [Pg.432]    [Pg.1171]    [Pg.955]    [Pg.906]    [Pg.179]    [Pg.163]    [Pg.361]    [Pg.179]    [Pg.113]    [Pg.317]    [Pg.126]    [Pg.182]    [Pg.1600]   
See also in sourсe #XX -- [ Pg.43 , Pg.83 ]



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Exposure problem

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