Complexes [FeCpI(CO)(CNR)] [2a-f; R = 2,6-C6H3Me2 = Xyl, 4-C6H4OMe, CH2Ph, CH2P(O)(OEt)2, CH2SO2(4-C6H4Me), Me; Cp = η5-C5H5] and [FeCpI(CNR)2] [3a-f; R = Xyl, 4-C6H4OMe, CH2Ph, CH2P(O)(OEt)2, Me] were obtained in 58-73% yields from the thermal reactions of [FeCpI(CO)2] (1) in toluene with one/two equivalents of CNR, respectively, in the presence of [Fe2Cp2(CO)4] as catalyst. The 1:2 molar reaction of 1 with CNMe resulted in the prevalent formation of [FeCp(CO)(CNMe)2]I, 4f (86% yield). The reactions of 1 and 3a-c with an excess of CF3SO3CH3 afforded the triflate adducts [FeCp(OSO2CF3)L2] (L = CO, 1TF; Xyl, 3aTF; 4-C6H4OMe, 3bTF; CH2Ph, 3cTF), in 62-78% yields, via CH3I elimination. All products were characterized by elemental analysis, IR and multinuclear NMR spectroscopy, moreover the molecular structures of 2a, 2e and 3a were ascertained by single crystal X-ray diffraction. The potential of 1, 2a-f and 3a-f as catalysts in the bulk polymerization of rac-lactide was examined.

Bresciani G., Volante S., Biancalana L., Zacchini S., Pampaloni G., Marchetti F. (2023). Piano stool iron complexes with isocyanide ligands. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1001, 1-10 [10.1016/j.jorganchem.2023.122851].

Piano stool iron complexes with isocyanide ligands

Zacchini S.;
2023

Abstract

Complexes [FeCpI(CO)(CNR)] [2a-f; R = 2,6-C6H3Me2 = Xyl, 4-C6H4OMe, CH2Ph, CH2P(O)(OEt)2, CH2SO2(4-C6H4Me), Me; Cp = η5-C5H5] and [FeCpI(CNR)2] [3a-f; R = Xyl, 4-C6H4OMe, CH2Ph, CH2P(O)(OEt)2, Me] were obtained in 58-73% yields from the thermal reactions of [FeCpI(CO)2] (1) in toluene with one/two equivalents of CNR, respectively, in the presence of [Fe2Cp2(CO)4] as catalyst. The 1:2 molar reaction of 1 with CNMe resulted in the prevalent formation of [FeCp(CO)(CNMe)2]I, 4f (86% yield). The reactions of 1 and 3a-c with an excess of CF3SO3CH3 afforded the triflate adducts [FeCp(OSO2CF3)L2] (L = CO, 1TF; Xyl, 3aTF; 4-C6H4OMe, 3bTF; CH2Ph, 3cTF), in 62-78% yields, via CH3I elimination. All products were characterized by elemental analysis, IR and multinuclear NMR spectroscopy, moreover the molecular structures of 2a, 2e and 3a were ascertained by single crystal X-ray diffraction. The potential of 1, 2a-f and 3a-f as catalysts in the bulk polymerization of rac-lactide was examined.
2023
Bresciani G., Volante S., Biancalana L., Zacchini S., Pampaloni G., Marchetti F. (2023). Piano stool iron complexes with isocyanide ligands. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 1001, 1-10 [10.1016/j.jorganchem.2023.122851].
Bresciani G.; Volante S.; Biancalana L.; Zacchini S.; Pampaloni G.; Marchetti F.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/951027
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