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Bárta O, Císařová I, Štěpnička P. The protonation state governs the coordination of phosphinoferrocene guanidines. Dalton Trans 2021; 50:14662-14671. [PMID: 34585205 DOI: 10.1039/d1dt02884g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Compared to phosphines with guanidinium tags, studied as polar ligands for aqueous catalysis, their counterparts bearing guanidine substituents received only limited attention. This contribution focuses on the coordination of phosphinoferrocene guanidine Ph2PfcNC(NHiPr)2 (1iPr, fc = ferrocene-1,1'-diyl) as a hybrid, P,N-donor ligand to Group 10 metals. In its native state, 1iPr coordinated as a P,N-chelating ligand, affording [M(X)(Y)(1iPr-κ2P,N)] (M/X/Y = Pd/Cl/Cl, Pd/Br/4-C6H4CN, Pt/Cl/Cl; the corresponding Ni(II) complex was not isolated). While [PdCl2(1iPr-κ2P,N)] converted into [PdCl(1iPr-κ3Fe,P,N)]+ species with Fe-Pd interaction, upon chloride removal, the analogous Pt(II) complex dimerised into [Pt2(μ-Cl)2(1iPr-κ2P,N)2]2+. Deprotonation of [PdCl2(1iPr-κ2P,N)] produced a unique, doubly chelating phosphinoguanidinate complex [PdCl{(1iPr-H)-κ3P,N,N'}], which was smoothly converted into [Pd(MeCN){(1iPr-H)-κ3P,N,N'}][SbF6]. The latter, a convenient starting material for substitution reactions, was used to prepare either [Pd(L){(1iPr-H)-κ3P,N,N'}][SbF6] (L = 4-(dimethylamino)pyridine and 2-phenylpyridine), by simple substitution, or the hydroxide and acetylacetonate (acac) complexes, [Pd2(μ-OH)2(1iPr-κ2P,N)2][SbF6]2 and [Pd(acac)(1iPr-κ2P,N)][SbF6], by substitution with concomitant proton transfer. In contrast, protonation of the guanidine moiety prevented its coordination, as shown in reactions of the salts (1iPrH)Cl and (1iPrH)[SbF6]. Depending on the metal-to-ligand ratio, adding (1iPrH)[SbF6] to [PdCl2(MeCN)2] produced [Pd2Cl2(μ-Cl)2(1iPrH-κP)2][SbF6]2 or [PdCl2(1iPrH-κP)2][SbF6]2. Analogous reactions involving (1iPrH)Cl were more complicated due to competing coordination of the chloride anion, leading to (in addition to other compounds) the zwitterionic complex [PdCl3(1iPrH-κP)], which was alternatively obtained by selective protonation of [PdCl2(1iPr-κ2P,N)] with HCl. Apparently, the protonation state of the guanidine moiety controls the coordination behaviour of phosphinoferrocene guanidines.
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Affiliation(s)
- Ondřej Bárta
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Ivana Císařová
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic.
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Nairoukh Z, Fanun M, Schwarze M, Schomäcker R, Blum J. Cyclotrimerization of alkynes vs. ketone formation in aqueous microemulsion. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.molcata.2013.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Xu C, Du W, Zeng Y, Dai B, Guo H. Reactivity Switch Enabled by Counterion: Highly Chemoselective Dimerization and Hydration of Terminal Alkynes. Org Lett 2014; 16:948-51. [DOI: 10.1021/ol403684a] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Caixia Xu
- School
of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
- School
of Chemistry and Chemical Engineering, Shihezi University, Key Laboratory for Green Processing of Chemical
Engineering of Xinjiang Bingtuan, Shihezi Xinjiang 832003, China
| | - Weiyuan Du
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Yi Zeng
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
| | - Bin Dai
- School
of Chemistry and Chemical Engineering, Shihezi University, Key Laboratory for Green Processing of Chemical
Engineering of Xinjiang Bingtuan, Shihezi Xinjiang 832003, China
| | - Hao Guo
- Department
of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China
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Reaction of [Ru3(CO)12] with tri(2-furyl)phosphine: Di- and tri-substituted triruthenium and phosphido-bridged diruthenium complexes. J Organomet Chem 2008. [DOI: 10.1016/j.jorganchem.2007.11.042] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Affiliation(s)
- Clara I Herrerías
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 2K6, Canada
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Tan YLK, Leong WK. The Ditertiary‐Phosphane‐Bridged Heteronuclear Cluster RuOs
3
(μ‐H)
2
(CO)
9
(μ‐CO)
2
(μ‐dppm): Synthesis and Reactivity with Alkynes. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200601118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yong Leng Kelvin Tan
- Department of Chemistry, National University of Singapore, Kent Ridge, Singapore 119260
| | - Weng Kee Leong
- Department of Chemistry, National University of Singapore, Kent Ridge, Singapore 119260
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Li CJ. Organic reactions in aqueous media with a focus on carbon-carbon bond formations: a decade update. Chem Rev 2005; 105:3095-165. [PMID: 16092827 DOI: 10.1021/cr030009u] [Citation(s) in RCA: 1699] [Impact Index Per Article: 89.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Chao-Jun Li
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, Quebec H3A 2K6, Canada.
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Chen X, Xue P, Sung HHY, Williams ID, Peruzzini M, Bianchini C, Jia G. Ruthenium-Promoted Z-Selective Head-to-Head Dimerization of Terminal Alkynes in Organic and Aqueous Media. Organometallics 2005. [DOI: 10.1021/om050355x] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Xingguo Chen
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, and Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano, snc, 50019 Sesto Fiorentino (Firenze), Italy
| | - Peng Xue
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, and Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano, snc, 50019 Sesto Fiorentino (Firenze), Italy
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, and Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano, snc, 50019 Sesto Fiorentino (Firenze), Italy
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, and Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano, snc, 50019 Sesto Fiorentino (Firenze), Italy
| | - Maurizio Peruzzini
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, and Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano, snc, 50019 Sesto Fiorentino (Firenze), Italy
| | - Claudio Bianchini
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, and Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano, snc, 50019 Sesto Fiorentino (Firenze), Italy
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, and Istituto di Chimica dei Composti Organometallici (ICCOM-CNR), Via Madonna del Piano, snc, 50019 Sesto Fiorentino (Firenze), Italy
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Tanaka K, Toyoda K, Wada A, Shirasaka K, Hirano M. Chemo- and Regioselective Intermolecular Cyclotrimerization of Terminal Alkynes Catalyzed by Cationic Rhodium(I)/Modified BINAP Complexes: Application to One-Step Synthesis of Paracyclophanes. Chemistry 2005; 11:1145-56. [PMID: 15619723 DOI: 10.1002/chem.200401017] [Citation(s) in RCA: 131] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A highly regioselective intermolecular cyclotrimerization of terminal alkynes has been developed based on the use of the cationic rhodium(I)/DTBM-Segphos complex. This method can be applied to a variety of terminal alkynes to provide 1,2,4-trisubstituted benzenes in high yield and with high regioselectivity. A chemo- and regioselective intermolecular crossed-cyclotrimerization of dialkyl acetylenedicarboxylates with a variety of terminal alkynes has also been developed based on the use of the cationic rhodium(I)/H8-BINAP complex, furnishing 3,6-disubstituted phthalates in high yields. It constitutes a highly efficient new method for intermolecular crossed-cyclotrimerization of two different monoynes in terms of catalytic activity, chemo- and regioselectivity, scope of substrates, and ease of operation. The versatility of this new crossed-alkyne cyclotrimerization procedure is demonstrated through its application to one-step synthesis of a [6]metacyclophane and [7]-[12]paracyclophanes from the corresponding terminal alpha,omega-diynes. Mechanistic studies have revealed that the chemo- and regioselectivity of this crossed-alkyne cyclotrimerization are determined by the preferential formation of a specific rhodium metallacycle derived from a terminal alkyne and a dialkyl acetylenedicarboxylate.
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Affiliation(s)
- Ken Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184-8588, Japan.
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Duraczyńska D, Nelson JH. Phosphaallyl complexes of Ru(ii) derived from dicyclohexylvinylphosphine (DCVP). Dalton Trans 2005:92-103. [PMID: 15605151 DOI: 10.1039/b413446j] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The complexes [(eta5-RC5H4)Ru(CH3CN)3]PF6(R = H, CH3) react with DCVP (DCVP = Cy2PCH=CH2) at room temperature to produce the phosphaallyl complexes [(eta5-C5H5)Ru(eta1-DCVP)(eta3-DCVP)]PF6 and [(eta5-MeC5H4)Ru(eta1-DCVP)(eta3-DCVP)]PF6. Both compounds react with a variety of two-electron donor ligands displacing the coordinated vinyl moiety. In contrast, we failed to prepare the phosphaallyl complexes [(eta5-C5Me5)Ru(eta1-DCVP)(eta3-DCVP)]PF6, [(eta5-MeC5H4)Ru(CO)(eta3-DCVP)]PF6 and [(eta5-C5Me5)Ru(CO)(eta3-DPVP)]PF6(DPVP = Ph2PCH=CH2). The compounds [(eta5-MeC5H4)Ru(CO)(CH3CN)(DPVP)]PF6 and [(eta5-C5Me5)Ru(CO)(CH3CN)(DPVP)]PF6 react with DMPP (3,4-dimethyl-1-phenylphosphole) to undergo [4 + 2] Diels-Alder cycloaddition reactions at elevated temperature. Attempts at ruthenium catalyzed hydration of phenylacetylene produced neither acetophenone nor phenylacetaldehyde but rather dimers and trimers of phenylacetylene. The structures of the complexes described herein have been deduced from elemental analyses, infrared spectroscopy, 1H, 13C{1H}, 31P{1H} NMR spectroscopy and in several cases by X-ray crystallography.
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Affiliation(s)
- Dorota Duraczyńska
- Department of Chemistry/216, University of Nevada-Reno, Reno, NV 89557-0020, USA
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Zhan X, Yang M, Lei Z. Transition metal acetylide catalysts for polymerization of p-diethynylbenzene 4. ACTA ACUST UNITED AC 2002. [DOI: 10.1016/s1381-1169(02)00006-7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Deng M, Leong WK. Reactions of the Triosmium−Antimony Cluster Os3(μ-SbPh2)(μ-H)(μ3,η2-C6H4)(CO)9 with Alkynes: C−C Bond Coupling to a Cluster-Bound Phenylene and Catalytic Alkyne Cyclotrimerization. Organometallics 2002. [DOI: 10.1021/om010911x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mingli Deng
- Department of Chemistry, National University of Singapore, Kent Ridge, Singapore 119260
| | - Weng Kee Leong
- Department of Chemistry, National University of Singapore, Kent Ridge, Singapore 119260
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Herberhold M, Yan H, Milius W, Wrackmeyer B. Reactivity of Cp*Rh 16e Half-Sandwich Complexes Containing a Chelating 1,2-Dicarba-closo-dodecaborane-1,2-dichalcogenolato Ligand. Intermediates in the Catalyzed Trimerization of Methyl Acetylene Carboxylate and Phenylacetylene. Organometallics 2000. [DOI: 10.1021/om0003077] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Max Herberhold
- Laboratorium für Anorganische Chemie der Universität Bayreuth, D-95440 Bayreuth, Germany
| | - Hong Yan
- Laboratorium für Anorganische Chemie der Universität Bayreuth, D-95440 Bayreuth, Germany
| | - Wolfgang Milius
- Laboratorium für Anorganische Chemie der Universität Bayreuth, D-95440 Bayreuth, Germany
| | - Bernd Wrackmeyer
- Laboratorium für Anorganische Chemie der Universität Bayreuth, D-95440 Bayreuth, Germany
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Schumann H, Ravindar V, Meltser L, Baidossi W, Sasson Y, Blum J. Effect of the CO2H groups of carboxylated triarylphosphines on (COD) RhCl(PAr3)-catalyzed isomerization of 1-octen-3-ol under phase transfer conditions. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s1381-1169(96)00374-3] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Buhling A, Kamer PC, van Leeuwen PW, Elgersma JW. Rhodium catalysed hydroformlyation of higher alkenes using amphiphilic ligands: part 2. ACTA ACUST UNITED AC 1997. [DOI: 10.1016/s1381-1169(96)00195-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Schumann H, Hemling H, Goren N, Blum J. Dicarbonylbis[2-(diphenylphosphino)-N,N-dimethyethanamine]-bis-[μ-(2-methyl)-2-propanethiolato]dirhodium and dicarbonylbis[2-(diphenylphosphino)-N,N,N-trimethylethanaminium]-bis-[μ-(2-methyl)-2-propanethiolato]dirhodium tetraphenylborate. Their syntheses, characterization and application as hydrogenation catalyst. J Organomet Chem 1995. [DOI: 10.1016/0022-328x(94)05015-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Amer I, Schumann H, Ravindar V, Baidossi W, Goren N, Blum J. A convenient route to 1,3,5-trisubstituted benzenes via rhodium catalyzed polymerization of arylacetylenes. ACTA ACUST UNITED AC 1993. [DOI: 10.1016/0304-5102(93)80099-g] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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