2026-04-17T06:29:01Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/113442024-06-18T13:49:23Zcom_2072_452955com_2072_2054col_2072_453073

Rhodium(I)-catalyzed [2 + 2 + 2] cycloaddition reactions of triacetylenic 15-membered aza macrocycles: A comparative structural study Brun Massó, Sandra Torrent i Palomeras, Anna Pla i Quintana, Anna Roglans i Ribas, Anna Fontrodona, Xavier Benet Buchholz, Jordi Parella Coll, Teodor Reaccions d'addició Addition reactions Rodi Rhodium Catalitzadors de rodi Rhodium catalyst Ciclització (Química) Ring formation (Chemistry) A variety of new nitrogen-containing 15-membered triacetylenic macrocycles with one or two alkyl substituents in a propargylic position have been efficiently synthesized and completely characterized. These macrocyclic systems undergo [2 + 2 + 2] cycloaddition reactions, leading to the corresponding fused tetracycles with a benzene core on treatment with Wilkinson's catalyst, [RhCl(PPh 3) 3]. The effects of alkyl chains have been evaluated on both the efficiency of the reaction and the conformational and structural analysis of the reactants We would like to thank the Spanish MICINN (projects CTQ2008-05409 and CTQ2011-23121), and the Generalitat de Catalunya (project 2009SGR637) for their financial support. S.B. thanks the University of Girona (UdG) for a predoctoral fellowship. Spectroscopic data have been partially funded by the University of Girona under the project with reference STR-CT00059 2024-06-18T13:49:23Z 2024-06-18T13:49:23Z 2024-06-18T13:49:23Z info:eu-repo/date/embargoEnd/2026-01-01 info:eu-repo/date/embargoEnd/2026-01-01 2012-01-09 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://hdl.handle.net/10256/11344 info:eu-repo/semantics/altIdentifier/doi/10.1021/om200927f info:eu-repo/semantics/altIdentifier/issn/0276-7333 info:eu-repo/semantics/altIdentifier/eissn/1520-6041 info:eu-repo/grantAgreement/MICINN//CTQ2011-23121/ES/APLICACIONES CATALITICAS DE COMPUESTOS DE RODIO, PALADIO Y NIQUEL EN SINTESIS ORGANICA. METODOLOGIA Y ESTUDIOS MECANISTICOS./ info:eu-repo/grantAgreement/MICINN//CTQ2008-05409-C02-02/ES/SINTESIS, REACTIVIDAD Y APLICACIONES DE MACROCICLOS POLIINSATURADOS Y SUS PRECURSORES. ESTUDIOS MECANISTICOS MEDIANTE ESI-MS./ AGAUR/2009-2014/2009 SGR-637 Tots els drets reservats info:eu-repo/semantics/embargoedAccess American Chemical Society (ACS) © Organometallics, 2012, vol. 31, núm.1, p. 318-326 Articles publicats (D-Q)