title: Scope and Limitations of the Liebeskind-Srogl Cross-Coupling Reactions Involving the Biellmann BODIPY.
abstract: Several new examples of meso-(het)arylBODIPY were prepared via the Liebeskind-Srogl (L-S) cross-coupling reaction of the Biellmann BODIPYs (1a,b) and aryl- and heteroarylboronic acids in good to excellent yield. It was shown that this reaction could be carried out under microwave heating to shorten reaction times and/or increase the yield. It was illustrated that organostannanes also participate in the L-S reaction to give the corresponding BODIPY analogues in short reaction times and also with good to excellent yields. We analyze the role of the substituent at the sensitive meso position in the photophysical signatures of these compounds. In particular, the rotational motion of the aryl ring and the electron donor ability of the anchored moieties rule the nonradiative pathways and, hence, have a deep impact in the fluorescence efficiency.
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Lourdes
authors.initials: L
authors.lastname: Betancourt-Mendiola
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Ismael
authors.initials: I
authors.lastname: Valois-Escamilla
authors.affiliation: ‡Departamento de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080 Bilbao, Spain.
authors.forename: Teresa
authors.initials: T
authors.lastname: Arbeloa
authors.affiliation: ‡Departamento de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080 Bilbao, Spain.
authors.forename: Jorge
authors.initials: J
authors.lastname: Bañuelos
authors.affiliation: ‡Departamento de Química Física, Universidad del País Vasco-EHU, Apartado 644, 48080 Bilbao, Spain.
authors.forename: Iñigo
authors.initials: I
authors.lastname: López Arbeloa
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Juan O
authors.initials: JO
authors.lastname: Flores-Rizo
authors.forename: Rongrong
authors.initials: R
authors.lastname: Hu
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Erik
authors.initials: E
authors.lastname: Lager
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: César F A
authors.initials: CF
authors.lastname: Gómez-Durán
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: José L
authors.initials: JL
authors.lastname: Belmonte-Vázquez
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Mayra R
authors.initials: MR
authors.lastname: Martínez-González
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Ismael J
authors.initials: IJ
authors.lastname: Arroyo
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Carlos A
authors.initials: CA
authors.lastname: Osorio-Martínez
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Enrique
authors.initials: E
authors.lastname: Alvarado-Martínez
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Arlette
authors.initials: A
authors.lastname: Urías-Benavides
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Brenda D
authors.initials: BD
authors.lastname: Gutiérrez-Ramos
authors.forename: Ben Zhong
authors.initials: BZ
authors.lastname: Tang
authors.affiliation: †Departamento de Química, Universidad de Guanajuato, Col. Noria Alta S/N, Guanajuato 36050, Mexico.
authors.forename: Eduardo
authors.initials: E
authors.lastname: Peña-Cabrera