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Lau S, Hood TM, Webster RL. Broken Promises? On the Continued Challenges Faced in Catalytic Hydrophosphination. ACS Catal 2022; 12:10939-10949. [PMID: 36082053 PMCID: PMC9442583 DOI: 10.1021/acscatal.2c03144] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/10/2022] [Indexed: 11/29/2022]
Abstract
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In this Perspective, we discuss what we perceive to be
the continued
challenges faced in catalytic hydrophosphination chemistry. Currently
the literature is dominated by catalysts, many of which are highly
effective, that generate the same phosphorus architectures, e.g.,
anti-Markovnikov products from the reaction of activated alkenes and
alkynes with diarylphosphines. We highlight the state of the art in
stereoselective hydrophosphination and the scope and limitations of
chemoselective hydrophosphination with primary phosphines and PH3. We also highlight the progress in the chemistry of the heavier
homologues. In general, we have tried to emphasize what is missing
from our hydrophosphination armament, with the aim of guiding future
research targets.
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Affiliation(s)
- Samantha Lau
- Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
| | - Thomas M. Hood
- Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
| | - Ruth L. Webster
- Department of Chemistry, University of Bath, Bath BA2 7AY, U.K
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2
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Galimova MF, Dobrynin AB, Musina EI, Musin RR, Karasik AA. Synthesis of Gold(I) Complexes with 10-(Aryl)phenoxarsines. RUSS J INORG CHEM+ 2022. [DOI: 10.1134/s0036023622080125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Seah JWK, Teo RHX, Leung PH. Organometallic chemistry and application of palladacycles in asymmetric hydrophosphination reactions. Dalton Trans 2021; 50:16909-16915. [PMID: 34734619 DOI: 10.1039/d1dt03134a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A number of palladacycles containing chiral chelating auxiliaries have been utilized as efficient catalysts for asymmetric hydrophosphination reactions. In all cases, the chiral auxiliaries remained coordinated to the palladium centres throughout the course of the reactions. Despite the presence of a large quantity of powerful tertiary phosphines, which are known to be strong metal ion sequesters, the expected catalyst poisoning was rarely observed in these palladacycle catalyzed processes. This review highlights the unique stereoelectronic features and the important organometallic chemistry of palladacycle catalysts which are essential to their synthetic operations.
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Affiliation(s)
- Jeffery Wee Kiong Seah
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
| | - Ronald Hong Xiang Teo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
| | - Pak-Hing Leung
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
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4
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Tay WS, Pullarkat SA. C-As Bond Formation Reactions for the Preparation of Organoarsenic(III) Compounds. Chem Asian J 2020; 15:2428-2436. [PMID: 32592284 DOI: 10.1002/asia.202000606] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/22/2020] [Indexed: 12/14/2022]
Abstract
Potential widespread applications of organoarsenic chemistry have been limited by the inherent lack of safe and effective As-C bond formation reactions. Several alternative reagents and methods have been developed in the last few decades to address the hazards and drawbacks associated with traditional arsenic synthetic strategies. Herein, this minireview summarizes the advances made in nucleophilic, electrophilic, radical and metal-mediated As(III)-C bond formations while specifically highlighting the behavior of arsenic synthons with various well-established reagents (eg. Grignard reagents, organolithium compounds, organometallic reagents, radical initiators and Lewis/Brønsted bases). Avenues for asymmetric synthesis are also discussed, as are recent advances in organoarsenic chemistry suggesting that arsines exhibit novel reactivities independent from that of other relatively more well explored Group V cogeners.
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Affiliation(s)
- Wee Shan Tay
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Sumod A Pullarkat
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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5
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Tay WS, Li Y, Yang XY, Pullarkat SA, Leung PH. Air-stable phosphine organocatalysts for the hydroarsination reaction. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121216] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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6
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Valderrama-García BX, Rufino-Felipe E, Valdés H, Hernandez-Ortega S, Aguilar-Castillo BA, Morales-Morales D. Novel and facile procedure for the synthesis of Ni(II) and Pd(II) PSCOP pincer complexes. Evaluation of their catalytic activity on C-S, C-Se and C-C cross coupling reactions. Inorganica Chim Acta 2020. [DOI: 10.1016/j.ica.2019.119283] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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7
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Tay WS, Li Y, Lu Y, Pullarkat SA, Leung PH. Chemoselective Synthesis and Evaluation of β-Oxovinylarsines as an Arsenic Synthetic Precursor. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00587] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Wee Shan Tay
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637616 Singapore
| | - Yongxin Li
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637616 Singapore
| | - Yunpeng Lu
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637616 Singapore
| | - Sumod A. Pullarkat
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637616 Singapore
| | - Pak-Hing Leung
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 637616 Singapore
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8
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Tay WS, Li Y, Pullarkat SA, Leung PH. Divergent Reactivity of Phosphapalladacycles toward E–H (E = N, P, As) Bonds. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00723] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Wee Shan Tay
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Yongxin Li
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Sumod A. Pullarkat
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Pak-Hing Leung
- Division of Chemistry & Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
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9
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Tay WS, Lu Y, Yang XY, Li Y, Pullarkat SA, Leung PH. Catalytic and Mechanistic Developments of the Nickel(II) Pincer Complex-Catalyzed Hydroarsination Reaction. Chemistry 2019; 25:11308-11317. [PMID: 31293004 DOI: 10.1002/chem.201902138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Indexed: 01/08/2023]
Abstract
Synthetic challenges have significantly slowed the development of the catalytic asymmetric hydroarsination reaction despite it being a highly attractive C-As bond formation methodology. In addition, there is a poor understanding of the main reaction steps in such reactions which limit further development in the field. Herein, key intermediates of the hydroarsination reaction catalyzed by a PCP NiII -Cl pincer complex are presented upon investigating the reaction with DFT calculations, conductivity measurements, NMR spectroscopy, and catalytic screening. The novel Ni-Cl-As interaction proposed was then contrasted against known NiII -catalyzed hydrophosphination reactions to highlight dissimilarities between them even though P and As share a close group relationship. Lastly, the asymmetric hydroarsination of nitroolefins was further developed to furnish a library of chiral organoarsines in up to 99 % yield and 80 % ee under mild conditions (-20 °C to RT) between 5 to 210 mins.
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Affiliation(s)
- Wee Shan Tay
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Yunpeng Lu
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Xiang-Yuan Yang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Yongxin Li
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Sumod A Pullarkat
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
| | - Pak-Hing Leung
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371, Singapore, Singapore
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Tay WS, Yang XY, Li Y, Pullarkat SA, Leung PH. Investigating palladium pincer complexes in catalytic asymmetric hydrophosphination and hydroarsination. Dalton Trans 2019; 48:4602-4610. [PMID: 30888384 DOI: 10.1039/c9dt00221a] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Given the periodic relationship of phosphines and arsines, is remodeling the catalytic asymmetric hydrophosphination reaction an efficient manner to develop the corresponding hydroarsination reaction? Herein, a chiral PCP-Pd(ii) pincer complex adept at generating enantioenriched phosphines was examined in the asymmetric hydroarsination reaction. Under distinct conditions, tertiary phosphines and arsines were generated in excellent yields (P: 96%, As: 91%) and ees (P: 90%, As: 85%). While secondary arsine reagents were not direct substitutes for the analogous phosphines, important parameters were identified which increased yield and ee of the hydroarsination reaction. Unlike the PCP-PdOAc pincer complex commonly used for hydrophosphinations, hydroarsination reactions involved a PCP-PdCl catalyst with 10 equiv. of CsF for optimal performance. Notable differences between the two reactions and their workup procedures were highlighted to guide further developments in the field. Lastly, respective mechanisms were proposed and contrasted for the activation of HEPh2 (E = P, As).
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Affiliation(s)
- Wee Shan Tay
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, 637371 Singapore.
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12
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Li X, Chen Y, Pang BP, Tan J, Li Y, Pullarkat SA, Leung P. Efficient Synthesis of Malonate Functionalized Chiral Phosphapalladacycles and their Catalytic Evaluation in Asymmetric Hydrophosphination of Chalcone. Eur J Inorg Chem 2018. [DOI: 10.1002/ejic.201800720] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xi‐Rui Li
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
| | - Yu Chen
- Department of Chemistry and Biochemistry Queens College of the City University of New York 65‐30 Kissena Blvd. 11367 Queens New York United States
- Ph.D. Program in Chemistry The Graduate Center of the City University of New York 365 Fifth Ave. 10016 New York New York United States
| | - Benjamin Piaoxiang Pang
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
| | - Jaeyu Tan
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
| | - Yongxin Li
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
| | - Sumod A. Pullarkat
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
| | - Pak‐Hing Leung
- Division of Chemistry & Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University 637371 Singapore Singapore
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Vu MD, Foo CQ, Sadeer A, Shand SS, Li Y, Pullarkat SA. Triflic-Acid-Catalyzed Tandem Allylic Substitution-Cyclization Reaction of Alcohols with Thiophenols-Facile Access to Polysubstituted Thiochromans. ACS OMEGA 2018; 3:8945-8951. [PMID: 31459027 PMCID: PMC6645051 DOI: 10.1021/acsomega.8b01305] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 07/18/2018] [Indexed: 06/10/2023]
Abstract
Hitherto inaccessible multisubstituted thiochroman derivatives were constructed via the one-pot reaction of thiophenols with allylic alcohols catalyzed by 0.2 equiv triflic acid under metal-free conditions. A variety of thiochroman derivatives can be obtained by this straightforward protocol that allows the introduction of up to four substituents at various locations on the thiochroman skeleton. Relative conformations of all isolated products were confirmed by NOESY NMR studies, and a stepwise mechanism, proceeding via an allylic substitution-intramolecular cyclization protocol, is proposed on the basis of NMR experiments.
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Affiliation(s)
- Minh Duy Vu
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Ce Qing Foo
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Abdul Sadeer
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Sam S. Shand
- School
of Chemistry, University of Edinburgh, Joseph Black Building, West Mains
Road, Edinburgh EH9 3JJ, Scotland
| | - Yongxin Li
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Sumod A. Pullarkat
- Division
of Chemistry and Biological Chemistry, School of Physical and Mathematical
Sciences, Nanyang Technological University, Singapore 637371, Singapore
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