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Development of practical methodologies for the synthesis of functionalized benzoboroxoles

✍ Scribed by J. Sravan Kumar; Christopher M. Bashian; Michael A. Corsello; Subash C. Jonnalagadda; Venkatram R. Mereddy


Book ID
104097990
Publisher
Elsevier Science
Year
2010
Tongue
French
Weight
474 KB
Volume
51
Category
Article
ISSN
0040-4039

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✦ Synopsis


a b s t r a c t 2-Formylphenylboronic acids upon reaction with activated olefins such as acrylates, methyl vinyl ketone, and acrylonitrile provide functionalized benzoboroxoles. The corresponding homologated benzoboroxoles were synthesized via the reaction of 2-formylphenylboronic acids with a-bromomethylacrylates.


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## Abstract A series of pyroglutamates (III), (VIII), and (X) is readily prepared by reaction of iminoesters (I) with corresponding Baylisβ€”Hillman derivatives followed by acidic cleavage of imines and a subsequent lactamization.