TY - JOUR
T1 - Reactivity of cyrhetrenylphosphines
T2 - Synthesis and characterization of oxides, boranes and selenides
AU - Sierra, Diego
AU - Gomez, Johana
AU - Artigas, Vania
AU - Fuentealba, Mauricio
AU - Muñoz, Andrés
AU - Hugo Klahn, A.
N1 - Funding Information:
The authors thank FONDECYT-Chile (Projects 11140466 and 1150601) and FONDEQUIP (Project EQM 130154). We also acknowledge Universidad de Valpara?so and Direcci?n de Investigaci?n of Pontificia Universidad Cat?lica de Valpara?so for providing financial support.
Publisher Copyright:
© 2017 Elsevier B.V.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - Reaction of cyrhetrenylphosphines, of general formula (η5-C5H4PR2)Re(CO)2L (R = Ph, L = CO (1); R = Cy; L = CO (2); R = Ph, L = PMe3 (3) and R = Ph, L = P(OMe)3 (4)), with H2O2, BH3·THF or selenium gives the respective cyrhetrenylphosphine oxides, boranes and selenides. These species were characterized by standard spectroscopic techniques (FT-IR, 1H and 31PNMR). Based on the 31P[sbnd]77Se coupling constant (1JP-Se) of the phosphine-selenides, we established the following order of basicity of the parent cyrhetrenylphosphine 2 > 3 > 4 > 1. We also confirmed the opposite electronic effects of the cyrhetrenyl and ferrocenyl groups attached to a –PR2 unit. Finally, phosphine selenides 2c and 4c were structurally characterized by X-ray diffraction.
AB - Reaction of cyrhetrenylphosphines, of general formula (η5-C5H4PR2)Re(CO)2L (R = Ph, L = CO (1); R = Cy; L = CO (2); R = Ph, L = PMe3 (3) and R = Ph, L = P(OMe)3 (4)), with H2O2, BH3·THF or selenium gives the respective cyrhetrenylphosphine oxides, boranes and selenides. These species were characterized by standard spectroscopic techniques (FT-IR, 1H and 31PNMR). Based on the 31P[sbnd]77Se coupling constant (1JP-Se) of the phosphine-selenides, we established the following order of basicity of the parent cyrhetrenylphosphine 2 > 3 > 4 > 1. We also confirmed the opposite electronic effects of the cyrhetrenyl and ferrocenyl groups attached to a –PR2 unit. Finally, phosphine selenides 2c and 4c were structurally characterized by X-ray diffraction.
KW - Basicity
KW - Cyrhetrenylphosphines
KW - Phosphine oxides
KW - Phosphine selenides
KW - Phosphine-boranes
UR - http://www.scopus.com/inward/record.url?scp=85009948993&partnerID=8YFLogxK
U2 - 10.1016/j.inoche.2017.01.017
DO - 10.1016/j.inoche.2017.01.017
M3 - Article
AN - SCOPUS:85009948993
VL - 76
SP - 114
EP - 117
JO - Inorganic Chemistry Communications
JF - Inorganic Chemistry Communications
SN - 1387-7003
ER -