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2- methyl-2,3-dihydrobenzo b furan

Kitazume and Zulfiqar have investigated the Claisen rearrangement of several aromatic allyl ethers in ionic Hquids, catalyzed by scandium(III) trifluoromethane-sulfonate [72]. The reaction initially gave the 2-aUylphenol but this reacted further to give 2-methyl-2,3-dihydrobenzo[b]furan (Scheme 5.1-41). The yields in this reaction were highly dependant on the ionic liquid chosen, with [EDBU][OTf giving the best yields (e.g., 91 % for R = 6-CH3). Reactions in [BMIMjlBFJ and [BMIM][PF j gave low yields (9-12 %). [Pg.194]

C9H2oIN02f erythro-a, Dimethylacetylcholine iodide, 35B, 322 C9H20INO2, threo-a, -Dimethylacetylcholine iodide, 35B, 322 C9H22l2N202f 7-Aminobutyric acid choline ester di-iodide, 42B, 20 Cl0H8O4 f 6-Methoxy-2-methyl-3,5-dihydrobenzo[b]furan-4,7-dione, 46B, 593... [Pg.287]

COMPOUND 264 or 6-(3-methyl-2-butenyl)-2-(1-hydroxy-1-methylethyl)-5,7-dihydroxy-8-(2-methylpropanoyl)-2,3-dihydrobenzo(b)furan... [Pg.292]

See other pages where 2- methyl-2,3-dihydrobenzo b furan is mentioned: [Pg.194]    [Pg.194]    [Pg.194]    [Pg.194]    [Pg.194]   
See also in sourсe #XX -- [ Pg.333 ]



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2.3- Dihydrobenzo furans

B 4-methyl

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