377737-93-4Relevant articles and documents
Expanding the Range of Pyrenylphosphines and Their Derived Ru(II)-Arene Complexes
Rafols, Laia,Torrente, Sara,Aguilà, David,Soto-Cerrato, Vanessa,Pérez-Tomás, Ricardo,Gamez, Patrick,Grabulosa, Arnald
, p. 2959 - 2971 (2020)
The precursor PPyrCl2 (Pyr = 1-pyrenyl) has been used to prepare a number of novel 1-pyrenylphosphines. Treatment of PPyrCl2 with methylmagnesium chloride has provided the phosphine PPyrMe2, with methanol/triethylamine, the phosphonite PPyr(OMe)2 (1), with dimethylamine/triethylamine, the diaminophosphine PPyr(NMe2)2 (2), and with lithium aluminum hydride, PPyrH2 (3). From this primary phosphine, phosphirane PPyr(CH2CH2) (5) has been obtained. The phosphine PPyr2Ph (6) has been synthesized from 1-bromopyrene, while 1-bromo-2-(1-pyrenyl)benzene has been used to prepare Ph-PyrPhos (7) and i-Pr-PyrPhos (8). The new phosphines have subsequently been used to obtain the corresponding [RuCl2(η6-arene)(PPyrR2)] complexes C1Cym-C3Cym and C6Cym-C8Cym (arene = p-cymene; Cym) and C1Mba-C3Mba and C6Mba-C8Mba (arene = methyl benzoate; Mba), which have been fully characterized; the crystal structures of C1Cym, C1Mba, C2Cym, C2Mba, C6Mba, and C7Cym were determined by X-ray diffraction. Substitution of the methyl benzoate fragment of complexes C7Mba and C8Mba by the η6-coordinated pyrenyl group of the coordinated phosphine was achieved photochemically, giving the tethered complexes C7Tet and C8Tet. In these two complexes the phosphine acts as a κ1,η6-coordinated ligand, as evidenced by the X-ray structure of C8Tet. The antineoplastic activities of the piano-stool Ru compounds revealed that they are highly phosphine dependent and two compounds, namely C1Cym and C2Cym, exhibit interesting biological properties.
New Access to Six-Membered Phosphacycle Annulated Polyaromatic Ring System
Si, Erbing,Zhao, Peng,Wang, Lili,Duan, Zheng,Mathey, Fran?ois
supporting information, p. 697 - 701 (2020/02/11)
A facile Ag-catalyzed intramolecular C–P bond formation reaction from easily accessible phosphine oxides has been developed. Several new heteroatoms fused π-conjugated molecules were synthesized from this procedure with their structures confirmed by X-ray
Synthesis, Optical, and Redox Properties of Regioisomeric Benzoheterocycles-Fused Pyrene
Mocanu, Anabella,Szucs, Rózsa,Caytan, Elsa,Roisnel, Thierry,Dorcet, Vincent,Bouit, Pierre-Antoine,Nyulászi, László,Hissler, Muriel
, p. 957 - 962 (2019/01/24)
A new synthetic route toward the synthesis of benzo[b]phospholes- and benzo[b]siloles-fused pyrenes using a transition metal-catalyzed C-H bond activation is described. The compounds were fully characterized including X-ray diffraction. A combined experimental and theoretical study shows that both the heteroatom and the substitution pattern impact the optical and redox properties.
