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2-methoxycarbonyl-, flash vacuum pyrolysis

Upon flash vacuum pyrolysis of a nearly equimolar mixture of 4-pivaloyl- and 4-methoxycarbonyl-5-tert-butylfiaran-2,3-dione, 231 and 235 were obtained, in addition to minor amounts of dimers 233, 234 and 238. In this reaction, the significantly stable dimeric a-oxoketene 237 was also obtained as the result of an infrequent [4 + 2] dimerization of the primarily formed monomeric a-oxoketenes 232 and 236, respectively... [Pg.229]

See other pages where 2-methoxycarbonyl-, flash vacuum pyrolysis is mentioned: [Pg.816]    [Pg.816]    [Pg.816]    [Pg.816]    [Pg.816]    [Pg.816]    [Pg.816]    [Pg.816]    [Pg.41]    [Pg.41]    [Pg.184]   
See also in sourсe #XX -- [ Pg.352 ]



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5-Methoxycarbonyl-3-

Flash pyrolysis

Flash vacuum pyrolysi

Flash vacuum pyrolysis

Methoxycarbonylation

Methoxycarbonylations

Pyrolysis vacuum

Vacuum flashing

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