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1-Pyrrolylacetic acid

Reduction of appropriate 2-arylpyrimidines with zinc in acetic acid provides pyrrolylacetic acids... [Pg.543]

Decarboxylation of (175) occurs on its irradiation in an argon matrix at 10 K using 254 nm light. Spectroscopic analysis of the resulting matrix indicates the presence of a complex between carbon dioxide and the carbene (176). Tiaprofenic acid (177) undergoes facile photochemical decarboxylation, and this is reported to take place from an upper triplet excited state." A study of the transient photochemistry of 5-(p-toluyl)-l-methyl-2-pyrrolylacetic acid has been reported. Decarboxylation results in the formation of a carbanion in its triplet state. A laser-flash study using irradiation at 266 nm of the xanthene-9-carboxylate (178) has shown that the radical (179) is formed. This study used NaY zeolites and studied the oxidation of the radical within the cage structure. Calculations have indicated that decarboxylation of (180) and (181) and deprotonation of cycloheptatriene and cyclopentadiene affords the same anions (182) and (183), respectively. ... [Pg.67]

See other pages where 1-Pyrrolylacetic acid is mentioned: [Pg.152]    [Pg.152]    [Pg.152]    [Pg.694]    [Pg.152]    [Pg.152]    [Pg.152]    [Pg.694]    [Pg.215]    [Pg.287]    [Pg.215]    [Pg.287]   
See also in sourсe #XX -- [ Pg.543 ]

See also in sourсe #XX -- [ Pg.694 ]



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2-Pyrrolylacetate

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