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https://hdl.handle.net/10316/26848
Title: | Functionalization of dipyrromethanes via hetero-Diels–Alder reaction with azo- and nitrosoalkenes | Authors: | Pereira, Nelson A. M. Lemos, Américo Serra, Arménio C. Melo, Teresa M. V. D. Pinho e |
Keywords: | Dipyrromethanes; Azoalkenes; Nitrosoalkenes; Hetero-Diels–Alder reaction | Issue Date: | 20-Mar-2013 | Publisher: | Elsevier | Citation: | PEREIRA, Nelson A. M. [et al.] - Functionalization of dipyrromethanes via hetero-Diels–Alder reaction with azo- and nitrosoalkenes. "Tetrahedron Letters". ISSN 0040-4039. Vol. 54 Nº 12 (2013) p. 1553-1557 | Serial title, monograph or event: | Tetrahedron Letters | Volume: | 54 | Issue: | 12 | Abstract: | 5,5′-Diethyl- and 5-phenyldipyrromethanes participate in cycloadditions with azo- and nitrosoalkenes giving dipyrromethanes with side chains containing open chain oximes and hydrazones. By controlling reaction stoichiometry it is possible to get mono or 1,9-disubstituted derivatives. The reported methodology gave access to a range of dipyrromethanes with good structural features for various applications. It was demonstrated that reduction of dipyrromethanes containing α-oximino ester groups opens the way to new α-amino esters. | URI: | https://hdl.handle.net/10316/26848 | ISSN: | 0040-4039 | DOI: | 10.1016/j.tetlet.2013.01.032 | Rights: | openAccess |
Appears in Collections: | FCTUC Química - Artigos em Revistas Internacionais |
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