TY - JOUR
T1 - Dicyclohexylphosphino cyrhetrene
T2 - Synthesis, characterization and catalytic evaluation toward Suzuki-Miyaura cross-coupling reaction of aryl bromides and chlorides
AU - Sierra, Diego
AU - Brito, Germán
AU - Fuentealba, Mauricio
AU - Klahn, A. Hugo
N1 - Funding Information:
The authors thank Fondecyt-Chile (Project N° 1140466 and 1150601). We also acknowledge the Universidad de Valparaíso and Dirección de Investigación of Pontificia Universidad Católica de Valparaíso for providing financial support.
Publisher Copyright:
© 2017
PY - 2018/2
Y1 - 2018/2
N2 - Reaction of cyrhetrene ((η5-C5H5)Re(CO)3) with n-butyllithium (1.0 equiv, − 78 °C) and then ClPCy2 (Cy = cyclohexyl) gives the new cyrhetrenyl-phosphino ligand (η5-C5H4PCy2)Re(CO)3 which was isolated as a pure sample in 86% yield and characterized by standard spectroscopic techniques (FT-IR, 1H, 13C and 31P NMR), MS, X-ray diffraction and Elemental Analysis). This rhenium containing cyrhetrenyl phosphine combined with Pd(OAc)2 (2:1 mol ratio) resulted an efficient catalytic system for Suzuki couplings of aryl bromides and aryl chlorides with phenylboronic acid. The catalyst exhibits a high activity, with conversions of 100% after 20 min.
AB - Reaction of cyrhetrene ((η5-C5H5)Re(CO)3) with n-butyllithium (1.0 equiv, − 78 °C) and then ClPCy2 (Cy = cyclohexyl) gives the new cyrhetrenyl-phosphino ligand (η5-C5H4PCy2)Re(CO)3 which was isolated as a pure sample in 86% yield and characterized by standard spectroscopic techniques (FT-IR, 1H, 13C and 31P NMR), MS, X-ray diffraction and Elemental Analysis). This rhenium containing cyrhetrenyl phosphine combined with Pd(OAc)2 (2:1 mol ratio) resulted an efficient catalytic system for Suzuki couplings of aryl bromides and aryl chlorides with phenylboronic acid. The catalyst exhibits a high activity, with conversions of 100% after 20 min.
KW - Cyrhetrenyl phosphines
KW - Organometallic ligands
KW - Suzuki-Miyaura cross-coupling
UR - http://www.scopus.com/inward/record.url?scp=85038863719&partnerID=8YFLogxK
U2 - 10.1016/j.inoche.2017.12.010
DO - 10.1016/j.inoche.2017.12.010
M3 - Article
AN - SCOPUS:85038863719
SN - 1387-7003
VL - 88
SP - 30
EP - 33
JO - Inorganic Chemistry Communications
JF - Inorganic Chemistry Communications
ER -