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Arylalkanoic acid

Optically active 2-arylalkanoic acid esters have been prepared by the Friedel-Crafts alkylation of arenes with optically active a-sulfonyloxy esters (40). Friedel-Crafts alkylation of ben2ene with (5)-methyl 2-(chlorosulfonyloxy)- or 2-(mesyloxy)propionate proceeded with predorninant inversion of configuration (<97%) to give (5)-methyl 2-phenylpropionate. [Pg.554]

MISCELLANEOUS ARYLALKANOIC ACIDS It has been known for some time that thyroxine, and related compounds such as liothyronine (88) are effective in lowering serum cholesterol. The normal metabolic activity of this class of thyroid active compounds has precluded their use as hypocholesterol-emic agents. [Pg.78]

Arylalkanoic acid esters, 72 166 Arylaldehydes, microwave-accelerated transformation to nitriles, 76 580-581 Aryl alkyl ethers, acid cleavage of, 70 569 Arylalkylsulfones, 9 273 Arylamine dye intermediates, 9 272t... [Pg.73]

Monoalkyl ethers of (R,R) 1,2-bis[3,5-bis(trifluoromethyl)phenyl]ethanediol, 24, have been examined for the enantioselective protonation of silyl enol ethers and ketene disilyl acetals in the presence of SnCU (Scheme 12.21) [25]. The corresponding ketones and carboxylic acids have been isolated in quantitative yield. High enantioselectivities have been observed for the protonation of trimethylsilyl enol ethers derived from aromatic ketones and ketene bis(trimethylsilyl)acetals derived from 2-arylalkanoic acids. [Pg.374]

See other pages where Arylalkanoic acid is mentioned: [Pg.195]    [Pg.953]    [Pg.1160]    [Pg.63]    [Pg.64]    [Pg.65]    [Pg.66]    [Pg.67]    [Pg.68]    [Pg.69]    [Pg.70]    [Pg.71]    [Pg.72]    [Pg.74]    [Pg.75]    [Pg.76]    [Pg.77]    [Pg.78]    [Pg.79]    [Pg.80]    [Pg.81]    [Pg.82]    [Pg.83]    [Pg.84]    [Pg.543]    [Pg.482]    [Pg.502]    [Pg.569]    [Pg.570]    [Pg.571]    [Pg.572]    [Pg.573]    [Pg.574]    [Pg.575]    [Pg.576]    [Pg.577]    [Pg.578]    [Pg.580]    [Pg.581]    [Pg.582]    [Pg.583]    [Pg.584]    [Pg.585]    [Pg.586]    [Pg.587]    [Pg.588]   
See also in sourсe #XX -- [ Pg.230 ]



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Arylalkanoic acid derivatives

Arylalkanoic acids resolution

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