1
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Liu J, Deng R, Liang X, Zhou M, Zheng P, Chi YR. Carbene-Catalyzed and Pnictogen Bond-Assisted Access to P III-Stereogenic Compounds. Angew Chem Int Ed Engl 2024; 63:e202404477. [PMID: 38669345 DOI: 10.1002/anie.202404477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/15/2024] [Accepted: 04/25/2024] [Indexed: 04/28/2024]
Abstract
Intermolecular pnictogen bonding (PnB) catalysis has received increased interest in non-covalent organocatalysis. It has been demonstrated that organic electron-deficient pnictogen atoms can act as prospective Lewis acids. Here, we present a catalytic approach for the asymmetric synthesis of chiral PIII compounds by combining intramolecular PnB interactions and carbene catalysis. Our design features a pre-chiral phosphorus molecule bearing two electron-withdrawing benzoyl groups, resulting in the formation of a σ-hole at the P atom. X-ray and non-covalent interaction (NCI) analysis indicate that the model substrates exhibit intrinsic PnB interaction between the oxygen atom of the formyl group and the phosphorus atom. This induces a conformational locking effect, leading to the crystallization of the phosphorus substrate in a preferred conformation (P212121 chiral group). Under the catalysis of N-heterocyclic carbene, the aldehyde moiety activated by the pnictogen bond selectively reacts with an alcohol to yield the corresponding chiral monoester/phosphorus product with excellent enantioselectivity. This Lewis acidic phosphorus center, aroused by the non-polarized intramolecular pnictogen bond interaction, assists in conformational and selective regulations, providing unique opportunities for catalysis and beyond.
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Affiliation(s)
- Jianjian Liu
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
| | - Rui Deng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
| | - Xuyang Liang
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
| | - Mali Zhou
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
| | - Pengcheng Zheng
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
| | - Yonggui Robin Chi
- National Key Laboratory of Green Pesticide, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, 550025, Guiyang, China
- School of chemistry, chemical engineering, and biotechnology, Nanyang Technological University, 637371, Singapore, Singapore
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2
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Chandanshive AC, Gonnade RG, Chikkali SH. Thermally Stable P-Chiral Supramolecular Phosphines, their Self-Assembly and Implication in Rh-Catalyzed Asymmetric Hydrogenation. Chemistry 2024:e202401077. [PMID: 38845585 DOI: 10.1002/chem.202401077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2024] [Indexed: 07/26/2024]
Abstract
P-chiral supramolecular phosphine ligands are crucial for asymmetric transformations, but their synthesis is tedious. We report a one-step synthesis of thermally stable P-chiral supramolecular phosphines and their performance in the asymmetric hydrogenation of functionalized alkenes. A rational designing and synthesis of (R, R)-QuinoxP* ligated palladium complex (Pd-2) in excellent yield is reported. This Pd-2 catalyzed a direct P-C coupling of 2,3-dihydro-1-H-phosphindole (A1)/1,2,3,4-tetrahydrophosphindoline (A2) with 1-(3-iodophenyl)urea (B1)/2-iodo /6-hydroxy pyridine (B2) and,produced corresponding ligands L1-L3. The P-C coupling between A1 and B2 produced 6-(2,3-dihydro-1H-phosphindol-1-yl)pyridine-2(1H)-one (L2) with an excellent enantiomeric excess of up to 99 %. L2 was found to be remarkably stable even at 150 °C and did not oxidize/hydrolyze for at least 24 hours in open air. Such thermal stability and an impediment to oxidation are unprecedented. L2 self-assembled and produced L2-C1 (Pt), L2-C2(Pd), and L2-C3(Rh) assemblies. The utility of the self-assembled P-chiral ligand was demonstrated in the Rh-catalyzed asymmetric hydrogenation (AH) of functionalized olefins. The L2-C3 catalyzed AH of functionalized alkenes and delivered chiral products with excellent enantioselectivity of >99 %. A small library of 16 substrates was subjected to AH using L2-C3 to produce chiral compounds with excellent conversion and ee.
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Affiliation(s)
- Amol C Chandanshive
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad, U. P. 201002, India
| | - Rajesh G Gonnade
- Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad, U. P. 201002, India
- Center for Materials Characterization, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
| | - Samir H Chikkali
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Sector 19, Kamla Nehru Nagar, Ghaziabad, U. P. 201002, India
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3
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Tipker RM, Muldoon JA, Jo J, Connors CS, Varga BR, Hughes RP, Glueck DS. Protonation of P-Stereogenic Phosphiranes: Phospholane Formation via Ring Opening and C-H Activation. ACS OMEGA 2023; 8:12565-12572. [PMID: 37033828 PMCID: PMC10077540 DOI: 10.1021/acsomega.3c00885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Accepted: 03/09/2023] [Indexed: 06/19/2023]
Abstract
Protonation of cyclopropanes and aziridines is well-studied, but reactions of phosphiranes with acids are rare and have not been reported to result in ring opening. Treatment of syn-Mes*PCH2CHR (Mes* = 2,4,6-(t-Bu)3C6H2, R = Me or Ph, syn-1-2) or anti-Mes*PCH2CHPh (anti-2) with triflic acid resulted in regiospecific anti-Markovnikov C-protonation with ring opening and cyclophosphination of a Mes* ortho-t-Bu group to yield the phospholanium cations [PH(CH2CH2R)(4,6-(t-Bu)2-2-CMe2CH2C6H2)][OTf] (R = Me or Ph, 3-4), which were deprotonated with NEt3 to give phospholanes 5-6. Enantioenriched or racemic syn-1 both gave racemic 3. The byproduct [Mes*PH(CH2CH2Me)(OH)][OTf] (7) was formed from syn-1 and HOTf in the presence of water. Density functional theory calculations suggested that P-protonation followed by ring opening and hydride migration to C yields the phosphenium ion, [Mes*P(CH2CH2Me)][OTf], which undergoes C-H oxidative addition of an o-t-Bu methyl group. This work established a new reactivity pattern for phosphiranes.
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4
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Gallant SK, Tipker RM, Glueck DS. Copper-Catalyzed Asymmetric Alkylation of Secondary Phosphines via Rapid Pyramidal Inversion in P-Stereogenic Cu–Phosphido Intermediates. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sarah K. Gallant
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Ryan M. Tipker
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - David S. Glueck
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
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5
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Demkiw KM, Hu CT, Woerpel KA. Hyperconjugative Interactions of the Carbon-Halogen Bond that Influence the Geometry of Cyclic α-Haloacetals. J Org Chem 2022; 87:5315-5327. [PMID: 35363473 PMCID: PMC9036965 DOI: 10.1021/acs.joc.2c00148] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The analysis of the structures of low-energy conformers of different α-haloacetals reveals changes in bond lengths and geometries that correspond to stabilizing orbital interactions that contribute to the ground-state structures of these systems. Several factors, including the electron-donating and electron-accepting abilities of the substituents on the ring, affect the degree of the electronic interactions in these carbohydrate-like systems. The presence of an α-halogen atom that can participate in hyperconjugation has been shown to contribute to the structural characteristics of the low-energy conformer. The experimental evidence is supported by natural bond order (NBO) analysis to identify the types of interactions and to assess their relative importance.
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Affiliation(s)
- Krystyna M Demkiw
- Department of Chemistry, New York University, 100 Washington Square East, New York, New York 10003, United States
| | - Chunhua T Hu
- Department of Chemistry, New York University, 100 Washington Square East, New York, New York 10003, United States
| | - K A Woerpel
- Department of Chemistry, New York University, 100 Washington Square East, New York, New York 10003, United States
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6
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Tipker RM, Muldoon JA, Pham DH, Varga BR, Hughes RP, Glueck DS, Balaich GJ, Rheingold AL. Configurational Lability at Tetrahedral Phosphorus: syn/anti-Isomerization of a P-Stereogenic Phosphiranium Cation by Intramolecular Epimerization at Phosphorus. Angew Chem Int Ed Engl 2022; 61:e202110753. [PMID: 34755431 DOI: 10.1002/anie.202110753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Indexed: 11/05/2022]
Abstract
Tetrahedral main-group compounds are normally configurationally stable, but P-epimerization of the chiral phosphiranium cations syn- or anti-[Mes*P(Me)CH2 CHPh][OTf] (Mes*=2,4,6-(t-Bu)3 C6 H2 ) occurred under mild conditions at 60 °C in CD2 Cl2 , resulting in isomerization to give a syn-enriched equilibrium mixture. Ion exchange with excess [NBu4 ][Δ-TRISPHAT] (Δ-TRISPHAT=Δ-P(o-C6 Cl4 O2 )3 ) followed by chromatography on silica removed [NBu4 ][OTf] and gave mixtures of syn- and anti-[Mes*P(Me)CH2 CHPh][Δ-TRISPHAT]⋅x[NBu4 ][Δ-TRISPHAT]. NMR spectroscopy showed that isomerization proceeded with epimerization at P and retention at C. DFT calculations are consistent with a mechanism involving P-C cleavage to yield a hyperconjugation-stabilized carbocation, pyramidal inversion promoted by σ-interaction of the P lone pair with the neighboring β-carbocation, and ring closure with inversion of configuration at P.
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Affiliation(s)
- Ryan M Tipker
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - Jake A Muldoon
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - Daniel H Pham
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - Balazs R Varga
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - Russell P Hughes
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - David S Glueck
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - Gary J Balaich
- Department of Chemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Arnold L Rheingold
- Department of Chemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
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7
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Tipker RM, Muldoon JA, Pham DH, Varga BR, Hughes RP, Glueck DS, Balaich GJ, Rheingold AL. Configurational Lability at Tetrahedral Phosphorus:
syn/anti
‐Isomerization of a P‐Stereogenic Phosphiranium Cation by Intramolecular Epimerization at Phosphorus. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202110753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ryan M. Tipker
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Jake A. Muldoon
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Daniel H. Pham
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Balazs R. Varga
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Russell P. Hughes
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - David S. Glueck
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Gary J. Balaich
- Department of Chemistry University of California, San Diego 9500 Gilman Drive La Jolla CA 92093 USA
| | - Arnold L. Rheingold
- Department of Chemistry University of California, San Diego 9500 Gilman Drive La Jolla CA 92093 USA
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8
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Glueck DS. Asymmetric Synthesis of P-Stereogenic Secondary Phosphine Oxides (SPOs). SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1582-0169] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
AbstractP-Stereogenic secondary phosphine oxides [SPOs, RR′P(O)H], valuable ligands for metal complexes in asymmetric catalysis, are also building blocks for other chiral phosphorus derivatives. This short review summarizes methods used for asymmetric synthesis of P-stereogenic SPOs.1 Introduction2 Configurational Stability of P-Stereogenic SPOs3 Classical Resolution, HPLC Separation, and Dynamic Resolution4 Synthesis via Chiral Auxiliaries5 Kinetic Resolution6 Conclusions and Outlook
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9
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Tewari T, Kumar R, Chandanshive AC, Chikkali SH. Phosphorus Ligands in Hydroformylation and Hydrogenation: A Personal Account. CHEM REC 2021; 21:1182-1198. [PMID: 33734560 DOI: 10.1002/tcr.202100007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 03/05/2021] [Accepted: 03/05/2021] [Indexed: 01/10/2023]
Abstract
Metal-catalyzed hydroformylation and hydrogenation heavily rely on ligands, among which phosphorous ligands play a pivotal role. This personal account presents a selection of three distinct classes of phosphorous ligands, namely, monodentate meta-substituted phosphinites, bis-phosphites, and P-chiral supramolecular phosphines, developed in our group. The synthesis of these ligands, isolation, characterization, and their performance in transition metal-catalyzed hydroformylation, isomerizing hydroformylation, and asymmetric hydrogenation of olefins is summarized. The state of the art development in iron-catalyzed hydroformylation of alkenes and our contributions to the field is discussed. Use of phosphines enabled iron-catalyzed hydroformylation of alkenes under mild conditions. Thus, this account demonstrates the central role of phosphorus ligands in industrially relevant transformations such as hydrogenation and hydroformylation. The seemingly matured field of ligand discovery still holds significant potential and will steer the field of homogeneous catalysis.
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Affiliation(s)
- Tanuja Tewari
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr.HomiBhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR) Anusandhan Bhawan, 2 Rafi Marg, New Delhi, 110001, India
| | - Rohit Kumar
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr.HomiBhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR) Anusandhan Bhawan, 2 Rafi Marg, New Delhi, 110001, India
| | - Amol C Chandanshive
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr.HomiBhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR) Anusandhan Bhawan, 2 Rafi Marg, New Delhi, 110001, India
| | - Samir H Chikkali
- Polymer Science and Engineering Division, CSIR-National Chemical Laboratory, Dr.HomiBhabha Road, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR) Anusandhan Bhawan, 2 Rafi Marg, New Delhi, 110001, India
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10
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Ye X, Peng L, Bao X, Tan CH, Wang H. Recent developments in highly efficient construction of P-stereogenic centers. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2020.12.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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11
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Zimmerman AN, Xu RS, Reynolds SC, Shipp CA, Marshall DJ, Wang G, Blank NF, Gibbons SK, Hughes RP, Glueck DS, Balaich GJ, Rheingold AL. Diastereoselective Synthesis of P-Stereogenic Secondary Phosphine Oxides (SPOs) Bearing a Chiral Substituent by Ring Opening of (+)-Limonene Oxide with Primary Phosphido Nucleophiles. J Org Chem 2020; 85:14516-14526. [PMID: 32627554 DOI: 10.1021/acs.joc.0c00974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Kinetic separation of the commercially available cis/trans-(+)-limonene oxide mixture by ring opening with primary phosphido nucleophiles LiPHR (R = ferrocenyl, Ph, Cy, t-Bu, Mes* (Mes* = 2,4,6-(t-Bu)3C6H2)), followed by treatment with aqueous NH4Cl and H2O2, gave unreacted cis-(+)-limonene oxide and diastereoenriched mixtures of the secondary phosphine oxides (SPOs) PHR(trans-(+)-Lim-OH)(O), which could be separated by chromatography and/or recrystallization. This one-pot synthesis uses a cheap chiral material and commercially available primary phosphines to control the configuration of the new P-stereogenic SPOs, which are potentially useful as ligands for metal complexes in asymmetric catalysis.
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Affiliation(s)
- Amber N Zimmerman
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Rebecca S Xu
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Samantha C Reynolds
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Chase A Shipp
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Derrick J Marshall
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Ge Wang
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Natalia F Blank
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States.,Department of Chemistry, Norwich University, 158 Harmon Drive, Northfield, Vermont 05663, United States
| | - Sarah K Gibbons
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Russell P Hughes
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - David S Glueck
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, New Hampshire 03755, United States
| | - Gary J Balaich
- Department of Chemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
| | - Arnold L Rheingold
- Department of Chemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
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12
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Abstract
AbstractMetal-catalyzed asymmetric synthesis of P-stereogenic phosphines is a potentially useful approach to a class of chiral ligands with valuable applications in asymmetric catalysis. We introduced this idea with chiral platinum and palladium catalysts, exploiting rapid pyramidal inversion in diastereomeric metal–phosphido complexes (ML*(PRR′)) to control phosphorus stereochemistry. This Account summarizes our attempts to develop related synthetic methods using earth-abundant metals, especially copper, in which weaker metal–ligand bonds and faster substitution processes were expected to result in more active catalysts. Indeed, precious metals were not required. Without any transition metals at all, we exploited related P-epimerization processes to prepare enantiomerically pure phosphiranes and secondary phosphine oxides (SPOs) from commercially available chiral epoxides.1 Introduction2 Copper-Catalyzed Phosphine Alkylation3 Copper-Catalyzed Tandem Phosphine Alkylation/Arylation4 Nickel-Catalyzed Phosphine Alkylation5 Proton-Mediated P-Epimerization in Synthesis of Chiral Phosphiranes6 Diastereoselective Synthesis of P-Stereogenic Secondary Phosphine Oxides (SPOs) from (+)-Limonene Oxide7 Conclusions
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Affiliation(s)
- David S. Glueck
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College
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13
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Gaston JJ, McCosker PM, Yu H, Keller PA. Predicting phosphirane air stability using density functional theory. J PHYS ORG CHEM 2020. [DOI: 10.1002/poc.4110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Jayden J. Gaston
- School of Chemistry and Molecular Bioscience, Molecular Horizons, Illawarra Health and Medical Research Institute University of Wollongong Wollongong New South Wales Australia
| | - Patrick M. McCosker
- School of Chemistry and Molecular Bioscience, Molecular Horizons, Illawarra Health and Medical Research Institute University of Wollongong Wollongong New South Wales Australia
| | - Haibo Yu
- School of Chemistry and Molecular Bioscience, Molecular Horizons, Illawarra Health and Medical Research Institute University of Wollongong Wollongong New South Wales Australia
| | - Paul A. Keller
- School of Chemistry and Molecular Bioscience, Molecular Horizons, Illawarra Health and Medical Research Institute University of Wollongong Wollongong New South Wales Australia
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14
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Ganushevich Y, Zagidullin A, Kondrashova S, Latypov S, Miluykov V, Lönnecke P, Hey-Hawkins E. Asymmetric 1,3-dipolar cycloaddition reaction of chiral 1-alkyl-1,2-diphospholes with diphenyldiazomethane. RSC Adv 2020; 10:39060-39066. [PMID: 35518401 PMCID: PMC9057342 DOI: 10.1039/d0ra08080b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 10/15/2020] [Indexed: 11/23/2022] Open
Abstract
The 1,3-dipolar cycloaddition of chiral 1-alkyl-1,2-diphosphacyclopenta-2,4-dienes ((1-(−)-menthyl)oxymethyl-1,2-diphosphole and 1-(+)-neomenthyl-1,2-diphosphole) with diphenyldiazomethane leads to novel P-chiral bicyclic phosphiranes having six chiral centers. The degree of diastereoselectivity depends on the substituent at phosphorus, and dramatically increases in the case of (+)-neomenthyl group (de up to 71%). DFT calculations indicate that the cycloaddition is thermodynamically controlled. The 1,3-dipolar cycloaddition of chiral 1-alkyl-1,2-diphosphacyclopenta-2,4-dienes with diphenyldiazomethane leads to novel P-chiral bicyclic phosphiranes having six chiral centers.![]()
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Affiliation(s)
- Yulia Ganushevich
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center of RAS
- Kazan
- Russia
| | - Almaz Zagidullin
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center of RAS
- Kazan
- Russia
| | - Svetlana Kondrashova
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center of RAS
- Kazan
- Russia
| | - Shamil Latypov
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center of RAS
- Kazan
- Russia
| | - Vasili Miluykov
- Arbuzov Institute of Organic and Physical Chemistry
- FRC Kazan Scientific Center of RAS
- Kazan
- Russia
| | - Peter Lönnecke
- Institute of Inorganic Chemistry
- Leipzig University
- Leipzig
- Germany
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15
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Geeson MB, Transue WJ, Cummins CC. Organoiron- and Fluoride-Catalyzed Phosphinidene Transfer to Styrenic Olefins in a Stereoselective Synthesis of Unprotected Phosphiranes. J Am Chem Soc 2019; 141:13336-13340. [PMID: 31408599 PMCID: PMC6727668 DOI: 10.1021/jacs.9b07069] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
Catalytic
phosphiranation has been achieved, allowing preparation
of trans-1-R-2-phenylphosphiranes (R = t-Bu: 1-t-Bu; i-Pr: 1-i-Pr) from the corresponding dibenzo-7-(R)-7-phospha-norbornadiene
(RPA, A = C14H10,
anthracene) and styrene in 73% and 57% isolated yields, respectively.
The cocatalyst system requires tetramethylammonium fluoride (TMAF)
and [Fp(THF)][BF4] (Fp = Fe(η5-C5H5)(CO)2). In the case of the t-Bu derivative, the reaction mechanism was probed using stoichiometric
reaction studies, a Hammett analysis, and a deuterium labeling experiment.
Together, these suggest the intermediacy of iron-phosphido FpP(F)(t-Bu) (2), generated independently from the
stoichiometric reaction of [Fp(t-BuPA)][BF4] with TMAF. Two other plausible reaction intermediates,
[Fp(t-BuPA)][BF4] and [Fp(1-t-Bu)][BF4], were prepared independently
and structurally characterized.
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Affiliation(s)
- Michael B Geeson
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Wesley J Transue
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
| | - Christopher C Cummins
- Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States
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16
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Keisar OR, Ashkenazi N. A Concise Stereoselective Route to C-
and P
- Chirogenic Hydroxypropyl Phosphines by Ring-Opening of Optically Active Oxaphospholane-2-oxide. ChemistrySelect 2018. [DOI: 10.1002/slct.201803804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Orit Redy Keisar
- Department of Organic Chemistry; IIBR-Israel Institute for Biological Research P.O. Box 19; Ness Ziona 7410001 Israel
| | - Nissan Ashkenazi
- Department of Organic Chemistry; IIBR-Israel Institute for Biological Research P.O. Box 19; Ness Ziona 7410001 Israel
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17
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Deegan MM, Muldoon JA, Hughes RP, Glueck DS, Rheingold AL. Synthesis and Structure of Metal Complexes of P-Stereogenic Chiral Phosphiranes: An EDA-NOCV Analysis of the Donor–Acceptor Properties of Phosphirane Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00123] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Meaghan M. Deegan
- Department of Chemistry, Dartmouth College, 6128 Burke Laboratory, Hanover, New Hampshire 03755, United States
| | - Jake A. Muldoon
- Department of Chemistry, Dartmouth College, 6128 Burke Laboratory, Hanover, New Hampshire 03755, United States
| | - Russell P. Hughes
- Department of Chemistry, Dartmouth College, 6128 Burke Laboratory, Hanover, New Hampshire 03755, United States
| | - David S. Glueck
- Department of Chemistry, Dartmouth College, 6128 Burke Laboratory, Hanover, New Hampshire 03755, United States
| | - Arnold L. Rheingold
- Department of Chemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, California 92093, United States
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