Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/1918
Título: Intramolecular C–H insertion catalyzed by dirhodium(II) complexes using CO2 as the reaction media
Autor: Zakrzewska, Malgorzata E.
Cal, Pedro M.S.D.
Candeias, Nuno R.
Bogel-Lukasik, R.
Afonso, Carlos A.M.
Ponte, Manuel Nunes
Gois, Pedro M.P.
Palavras-chave: Diazoacetamides
C–H insertion
Dirhodium(II)
Lactams
scCO2
Data: 2012
Editora: Taylor & Francis
Citação: Zakrzewska, Malgorzata E.; Cal, Pedro M.S.D.; Candeias, Nuno R.; Bogel-Lukasik, R. [et.al.] Intramolecular C–H insertion catalyzed by dirhodium(II) complexes using CO2 as the reaction media. In: Green Chemistry Letters and Reviews, 2012, vol. 5, nº 2, p. 211-240
Resumo: In this work, the intramolecular C–H insertion of diazoacetamides catalyzed by dirhodium(II) complexes and using CO2 as solvent is disclosed. The expected lactams were obtained in yields over 97%. The asymmetric intramolecular C–H insertion was also achieved and the β-lactam 14 was obtained in >97% yield and 65% ee using the chiral dirhodium(II) catalyst Rh2(S-PTTL)4. Finally, the dirhodium(II) complex Rh2(OAc)4 was used in two consecutive cycles in which complete conversion to the lactam was observed.
URI: http://hdl.handle.net/10400.9/1918
ISSN: 1751-8253
Versão do Editor: http://dx.doi.org/10.1080/17518253.2011.620009
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