5-Oxazolones. Part V. Reaction of 4-alkylidene-5(4h)-oxazolones with ethyl 3-oxo-4-triphenylphosphoranylidene-butyrate

DOI: 10.1016/S0040-4020(01)81003-6

Source and publish data:

Tetrahedron p. 8907 - 8916 (1991)

Update date:2022-08-03

Topics:

Authors:

Clerici, Francesca

Folpini, Elena

Gelmi, Maria L.

Pocar, Donato

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Article abstract of DOI:10.1016/S0040-4020(01)81003-6

The reaction of 4-alkylidene-5(4H)-oxazolones 2a-e with ethyl 3-oxo-4-triphenyphosphoranylidene-butyrate 1 affords dihydrobenzoxazoles 3a-c and the diastereoisomeric 1,3-cyclohexanedione ylides 4a-e and 5a-e. 3a is oxidized to the corresponding benzoxazol

Full text of DOI:10.1016/S0040-4020(01)81003-6

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Product name:5-Benzoxazolecarboxylic acid, 4,7-dihydro-6-hydroxy-4-methyl-2-phenyl-, ethyl ester

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