Method of producing 5-formyl-2-furylboronic acid

Details Method of producing 5-formyl-2-furylboronic acid Method of producing 5-formyl-2-furylboronic acid

2006-05-16

2006-05-16

Solola, Taofiq (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

07045640

ABSTRACT:
5-formyl-2-furylboronic acid is produced by a) adding a base to a composition containing a boric acid ester and 2-furaldehyde, thereby obtaining a reaction mixture and protecting the formyl group of said 2-furaldehyde with a protective group, b) working-up of the reaction mixture in an acidic medium, and c) isolating of the 5-formyl-2-furylboronic acid.

REFERENCES:
patent: 96/16046 (1996-05-01), None
P. R. Parry, et al., Organic & Biomolecular Chemistry, vol. 1, No. 9, pp. 1447-1449, XP-002256394, “5-Formyl-2-Furylboronic Acid as a Versatile Bifunctional Reagent for the Synthesis of π-Extended Heteroarylfuran Systems”, May 7, 2003.
D. Florentin, et al., Bulletin de la Societe Chimique de France, No. 11/12, pp. 1999-2005, XP-009018458, “Synthèse et Étude RMN Des Acides Furanneboroniques et Formylfuranneboroniques”, 1976.
M. S. McClure, et al., Synthesis, No. 11, pp. 1681-1685, XP-001155250, “A Practical One-Pot Synthesis of 5-Aryl-2-Furaldehydes”, 2001.

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