Uma nova síntese de alfa-bromo-acetofenonas e sua aplicação na obtenção de 2-benzoil-benzofuranas

Autor: Mariangela S. Azevedo, Ana Paula L. Alves, Glaucia B. C. Alves, Jari N. Cardoso, Rosângela S. C. Lopes, Cláudio C. Lopes
Jazyk: English<br />Spanish; Castilian<br />Portuguese
Rok vydání: 2006
Předmět:
Zdroj: Química Nova, Vol 29, Iss 6, Pp 1259-1265 (2006)
Druh dokumentu: article
ISSN: 1678-7064
0100-4042
DOI: 10.1590/S0100-40422006000600022
Popis: alpha-Bromoacetophenones are important in organic synthesis. They have been widely used as precursors of several natural products. Several methods of bromination aiming at their synthesis have been described, however they furnish a mixture of starting material 10, mono 8 and dibromide 11 products. We developed a novel, simple and efficient synthesis of these compounds with applications in the synthesis of benzoylbenzofurans 9, compounds with important pharmacological properties, such as the ability of dilating the coronary artery and analgesic action. Such compounds have also been used as key intermediates to obtain quinone systems.
Databáze: Directory of Open Access Journals