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Geeson MB, Tanaka K, Taakili R, Benhida R, Cummins CC. Photochemical Alkene Hydrophosphination with Bis(trichlorosilyl)phosphine. J Am Chem Soc 2022; 144:14452-14457. [PMID: 35926231 DOI: 10.1021/jacs.2c05248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Bis(trichlorosilyl)phosphine (HP(SiCl3)2, 1) was prepared from [TBA][P(SiCl3)2] ([TBA]2, TBA = tetra-n-butylammonium) and triflic acid in 36% yield. Phosphine 1 is an efficient reagent for hydrophosphination of unactivated terminal olefins under UV irradiation (15-60 min) and gives rise to bis(trichlorosilyl)alkylphosphines (RP(SiCl3)2, R = (CH2)5CH3, 88%; (CH2)7CH3, 98%; (CH2)2C(CH3)3, 76%; CH2Cy, 93%; (CH2)2Cy, 95%; CH2CH(CH3)(CH2)2CH3, 82%; (CH2)3O(CH2)3CH3, 95%; (CH2)3Cl, 83%; (CH2)2SiMe3, 92%; (CH2)5C(H)CH2, 44%) in excellent yields. The products require no further purification beyond filtration and removal of volatile material under reduced pressure. The P-Si bonds of prototypical products RP(SiCl3)2 (R = -(CH2)5CH3, -(CH2)7CH3) are readily functionalized to give further phosphorus-containing products: H3C(CH2)7PCl2 (56%), [H3C(CH2)5P(CH2Ph)3]Br (84%), H3C(CH2)7PH2 (61%), H3C(CH2)5P(O)(H)(OH) (81%), and H3C(CH2)5P(O)(OH)2 (55%). Experimental mechanistic investigations, accompanied by quantum chemical calculations, point toward a radical-chain mechanism. Phosphine 1 enables the fast, high-yielding, and atom-efficient preparation of compounds that contain phosphorus-carbon bonds in procedures that bypass white phosphorus (P4), a toxic and high-energy intermediate of the phosphorus industry.
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Affiliation(s)
- Michael B Geeson
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Keita Tanaka
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Rachid Taakili
- Department of Chemical and Biochemical Sciences - Green Process Engineering, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco.,Institut de Chimie de Nice, UMR7272, Université Côte d'Azur, Nice 06103, France
| | - Rachid Benhida
- Department of Chemical and Biochemical Sciences - Green Process Engineering, Mohammed VI Polytechnic University, Ben Guerir 43150, Morocco.,Institut de Chimie de Nice, UMR7272, Université Côte d'Azur, Nice 06103, France
| | - Christopher C Cummins
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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Miller DL, Boro BJ, Grubel K, Helm ML, Appel AM. Synthesis and Characterization of a Triphos Ligand Derivative and the Corresponding Pd
II
Complexes. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500791] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Deanna L. Miller
- Pacific Northwest National Laboratory, P. O. Box 999, MS K2‐57, Richland, WA 99352, USA, http://www.pnnl.gov/science/staff/staff_info.asp?staff_num=7812
| | - Brian J. Boro
- Pacific Northwest National Laboratory, P. O. Box 999, MS K2‐57, Richland, WA 99352, USA, http://www.pnnl.gov/science/staff/staff_info.asp?staff_num=7812
| | - Katarzyna Grubel
- Pacific Northwest National Laboratory, P. O. Box 999, MS K2‐57, Richland, WA 99352, USA, http://www.pnnl.gov/science/staff/staff_info.asp?staff_num=7812
| | - Monte L. Helm
- Pacific Northwest National Laboratory, P. O. Box 999, MS K2‐57, Richland, WA 99352, USA, http://www.pnnl.gov/science/staff/staff_info.asp?staff_num=7812
| | - Aaron M. Appel
- Pacific Northwest National Laboratory, P. O. Box 999, MS K2‐57, Richland, WA 99352, USA, http://www.pnnl.gov/science/staff/staff_info.asp?staff_num=7812
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Baker R, Hashem E. A Study of the Reactivity of Secondary Phosphanes with Radical Sources: A New Dehydrocoupling Reaction. Helv Chim Acta 2010. [DOI: 10.1002/hlca.201000114] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Morisaki Y, Imoto H, Ouchi Y, Nagata Y, Chujo Y. Stereospecific Construction of a trans-1,4-Diphosphacyclohexane Skeleton. Org Lett 2008; 10:1489-92. [DOI: 10.1021/ol800261j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yasuhiro Morisaki
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hiroaki Imoto
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yuko Ouchi
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yuuya Nagata
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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Schubert DM, Hackney MLJ, Brandt PF, Norman AD. SILYLPHOSPHINE - ALKENE REACTION ROUTES TO ACYCLIC AND CYCLIC ORGANOPHOSPHINES. PHOSPHORUS SULFUR 2006. [DOI: 10.1080/10426509708044204] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- David M. Schubert
- a Department of Chemistry and Biochemistry , University of Colorado , Boulder, 80309-0215, Colorado
| | - Michael L. J. Hackney
- a Department of Chemistry and Biochemistry , University of Colorado , Boulder, 80309-0215, Colorado
| | - Paul F. Brandt
- a Department of Chemistry and Biochemistry , University of Colorado , Boulder, 80309-0215, Colorado
| | - Arlan D. Norman
- a Department of Chemistry and Biochemistry , University of Colorado , Boulder, 80309-0215, Colorado
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Baber A, de Vries JG, Orpen AG, Pringle PG, von der Luehe K. Allosteric effects in asymmetric hydrogenation catalysis? Asymmetric induction as a function of the substrate and the backbone flexibility of C1-symmetric diphosphines in rhodium-catalysed hydrogenations. Dalton Trans 2006:4821-8. [PMID: 17033707 DOI: 10.1039/b607479k] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The new unsymmetrical, optically active ligands 1,2-C(2)H(4)(PPh(2))(2'R,5'R-2',5'-dimethylphospholanyl) (L(a)) and 1,3-C(3)H(6)(PPh(2))(2'R,5'R-2',5'-dimethylphospholanyl) (L(b)) form complexes of the type [Rh(L)(cyclooctadiene)][BF(4)] where L = L(a) (1a) or L(b) (1b), [PtCl(2)(L)] where L = L(a) (2a) or L(b) (2b) and [PdCl(2)(L)] where L = L(a) (3a) or Lb (3b). The crystal structures of 2a and 2b show the chelate ligand backbones adopt delta-twist and flattened chair conformations respectively. Asymmetric hydrogenation of enamides and dehydroaminoesters using 1a and 1b as catalysts show that the ethylene-backboned diphosphine L(a) gives a more efficient catalyst in terms of asymmetric induction than the propylene-backboned analogue L(b). The greatest enantioselectivities were obtained with 1a and enamide substrates with ees up to 91%. Substrate-induced conformational changes in the Rh-diphosphine chelates are proposed to explain some of the ees observed in the hydrogenation of enamides.
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Affiliation(s)
- Angharad Baber
- School of Chemistry, University of Bristol, Cantock's Close, Bristol, UK
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Keiter RL, Benson JW, Jia Z, Keiter EA, Brandt DE. Isomerization and Chelation Studies of (OC)5M[η1-PPh2CH2CH2P(p-tolyl)2] and (OC)5M[η1-P(p-tolyl)2CH2CH2PPh2] (M = Cr, Mo, W). Organometallics 2000. [DOI: 10.1021/om000473e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Richard L. Keiter
- Department of Chemistry, Eastern Illinois University, Charleston, Illinois 61920
| | - John William Benson
- Department of Chemistry, Eastern Illinois University, Charleston, Illinois 61920
| | - Zhongjiang Jia
- Department of Chemistry, Eastern Illinois University, Charleston, Illinois 61920
| | - Ellen A. Keiter
- Department of Chemistry, Eastern Illinois University, Charleston, Illinois 61920
| | - Douglas E. Brandt
- Department of Chemistry, Eastern Illinois University, Charleston, Illinois 61920
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Hackney MLJ, Schubert DM, Brandt PF, Haltiwanger RC, Norman AD. (Trimethylsilyl)phosphine as a Versatile Reagent for Syntheses of New 4-Sila- and 4-Phosphaphosphorinanes. Inorg Chem 1997; 36:1867-1872. [PMID: 11669792 DOI: 10.1021/ic961329h] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
(Trimethylsilyl)phosphine (Me(3)SiPH(2)) undergoes radical P-H bond addition to vinylphosphines and -silanes to form new 4-phospha- and 4-silaphosphorinanes [vinyl reagent]: [PhP(CH=CH(2))(2)], PhP(C(2)H(4))(2)PSiMe(3) diastereomers (9A/9B); [Et(2)NP(CH=CH(2))(2)], Et(2)NP(C(2)H(4))(2)PSiMe(3) (11); [Me(2)Si(CH=CH(2))(2)], Me(2)Si(C(2)H(4))(2)PSiMe(3) (14); [Si(CH=CH(2))(4)], (CH=CH(2))(2)Si(C(2)H(4))(2)PSiMe(3) (16) and [Me(3)SiP(C(2)H(4))(2)](2)Si (17). Reactions are accompanied by formation of only small quantities of the Markovnikov addition product phospholanes. Methanolysis of the new silylphosphines yields PhP(C(2)H(4))(2)PH diastereomers (10A/10B), Me(2)Si(C(2)H(4))PH (15), (CH=CH(2))(2)Si(C(2)H(4))(2)PH (18), and [HP(C(2)H(4))(2)](2)Si (19). Stepwise methanolysis of 11 yields the phosphorinanes Et(2)NP(C(2)H(4))(2)PH (12) and MeOP(C(2)H(4))(2)PH (13). Oxidation of 15 and 14 with O(2) or O(2)/H(2)O, respectively, yields the phosphine oxide Me(2)Si(C(2)H(4))(2)P(O)H (20) and the phosphinic acid Me(2)Si(C(2)H(4))(2)P(O)OH (21). New compounds were characterized by spectral ((31)P, (1)H, and (13)C NMR, IR, and MS) data. 21 was further characterized by a single-crystal X-ray analysis: monoclinic, P2(1)/c, a = 10.416(2) Å, b = 6.817(1) Å, c = 14.237(3) Å, beta = 106.32(2) degrees, Z = 4, V = 970.3(3) Å(3). The ring of 21 adopts a chair conformation with the P=O bond in an equatorial position. From spectral data, tentative isomeric and conformational structural assignments are made for the new phosphorinanes in solution.
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Affiliation(s)
- Michael L. J. Hackney
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215
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Brandt PF, Schubert DM, Norman AD. Silylphosphide Reagents in Synthetic Routes to Cyclophosphines. Inorg Chem 1997; 36:1728-1731. [PMID: 11669769 DOI: 10.1021/ic961350i] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Paul F. Brandt
- Department of Chemistry and Biochemistry, University of Colorado, Boulder, Colorado 80309-0215
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