1
|
Kosińska A, Jamroz D, Rybarczyk-Pirek AJ, Wojtulewski S, Palusiak M, Zakrzewski J, Rudolf B. Amine-catalyzed substitution in CpFe(CO) 2I by phosphine and bisphosphine ligands. Dalton Trans 2024; 53:9732-9740. [PMID: 38775685 DOI: 10.1039/d4dt00416g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
We have found that amines significantly accelerate iodide substitution in CpFe(CO)2I (1) (Cp = η5-cyclopentadienyl) with phosphines and allow the synthesis of new complexes that are not available through reactions carried out without an amine. The reaction of equimolar amounts of 1 and triphenylphosphine in toluene containing DIPA afforded [CpFe(CO)2PPh3]+I- within 5 min at room temperature in 72% yield (90% after 24 h). DIPA and pyrrolidine gave the highest yields of the tested amines. We performed a similar reaction using model bisphosphines 1,3-bis(diphenylphosphino)ethane (dppe) and 1,1'-bis(diphenylphosphino)ferrocene (dppf). The products depended on the reagent ratio and bore the CpFe(CO)2 moiety coordinated to one or two phosphine phosphorus atoms. Chelates [CpFe(CO)(dppe)]+I- (4) and [Cp2Fe2(CO)4(dppe)]2+2I- (5) were formed in 72% and 98% yield, respectively. We also performed the DIPA-catalyzed reaction of 1 with triethyl phosphite and obtained the product of an Michaelis-Arbuzov-like rearrangement, CpFe(CO)2[P(O)(OCH2CH3)2] (11). All complexes were characterized with spectroscopic analysis by NMR, FT-IR, and ESI-MS, and by XRD for three complexes. To clarify the reaction mechanism, we performed theoretical calculations of the intermolecular interactions between 1 and amine molecules. We propose two possible reaction mechanisms to explain the formation of products.
Collapse
Affiliation(s)
- Aneta Kosińska
- University of Lodz, Faculty of Chemistry, Department of Organic Chemistry, Tamka 12, 91-403 Lodz, Poland.
| | - Daria Jamroz
- University of Lodz, Faculty of Chemistry, Department of Organic Chemistry, Tamka 12, 91-403 Lodz, Poland.
| | - Agnieszka J Rybarczyk-Pirek
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Pomorska 163/165, 90-236 Lodz, Poland
| | - Sławomir Wojtulewski
- University of Bialystok, Faculty of Chemistry, Department of Structural Chemistry, Ciołkowskiego 1K, 15-245 Bialystok, Poland
| | - Marcin Palusiak
- University of Lodz, Faculty of Chemistry, Department of Physical Chemistry, Pomorska 163/165, 90-236 Lodz, Poland
| | - Janusz Zakrzewski
- University of Lodz, Faculty of Chemistry, Department of Organic Chemistry, Tamka 12, 91-403 Lodz, Poland.
| | - Bogna Rudolf
- University of Lodz, Faculty of Chemistry, Department of Organic Chemistry, Tamka 12, 91-403 Lodz, Poland.
| |
Collapse
|
2
|
|
3
|
Kowalski K, Zakrzewski J, Rybarczyk-Pirek A. [(η5-C5H5)Fe(CO)2](Fp)-complexes of the parabanic acid mono- and dianion: synthesis, X-ray structures and reactivity of the heterocyclic ligand. Polyhedron 2004. [DOI: 10.1016/j.poly.2004.02.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
4
|
|
5
|
Rudolf B, Walendowska J, Zakrzewski J. Photosubstitution of the halide ligands (X−) in (η5-C5H5)Fe(CO)(PPh3)X. J Organomet Chem 2002. [DOI: 10.1016/s0022-328x(01)01447-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
6
|
Szaciłowski K, Macyk W, Stochel G, Stasicka Z, Sostero S, Traverso O. Ligand and medium controlled photochemistry of iron and ruthenium mixed-ligand complexes: prospecting for versatile systems. Coord Chem Rev 2000. [DOI: 10.1016/s0010-8545(00)00328-3] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
7
|
Zakrzewski J, Makowska M. Synthesis of CpFe(CO)2-complexes of estrone- and estradiol-sulfamate anions. INORG CHEM COMMUN 2000. [DOI: 10.1016/s1387-7003(00)00111-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
8
|
|