Abstract
As a lately emerging area, frustrated Lewis pair chemistry provides the most effective way for metal-free catalytic reductions, and a wide range of unsaturated compounds have been successfully reduced. However, the asymmetric catalytic reduction is still in its initial stage, and some formidable challenges still remain. The development of highly effective chiral FLP catalysts and their applications in asymmetric catalysis are two very important subjects in this field. This chapter will summarize the advances for chiral FLP catalysts and metal-free asymmetric reductions including hydrogenations, Piers-type hydrosilylations, and transfer hydrogenations in the past six years.
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Abbreviations
- Ac:
-
Acetyl
- Ar:
-
Aryl
- Atm:
-
Atmosphere
- Barton’s base:
-
2-tert-butyl-1,1,3,3-tetramethylguanidine
- Bn:
-
Benzyl
- Boc:
-
t-Butyloxy carbonyl
- Bu:
-
Butyl
- Cat.:
-
Catalyst
- Cbz:
-
Benzyloxycarbonyl
- Conv.:
-
Conversion
- Cy:
-
Cyclohexyl
- DCM:
-
Dichloromethane
- DFT:
-
Density Functional Theory
- DIBAL-H:
-
Diisobutyl aluminium hydride
- DMF:
-
Dimethylformamide
- DMS:
-
Dimethyl sulfide
- dr:
-
Diastereomeric ratio
- ee:
-
Enantiomeric excess
- equiv.:
-
Equivalent(s)
- Et:
-
Ethyl
- FLPs:
-
Frustrated Lewis pairs
- LA:
-
Lewis acid
- LB:
-
Lewis base
- Me:
-
Methyl
- Mes:
-
2,4,6-Trimethylphenyl
- NHC:
-
N-heterocyclic carbene
- Np:
-
Naphthyl
- PCC:
-
Pyridinium chlorochromate
- Ph:
-
Phenyl
- Piers’ Borane:
-
HB(C6F5)2
- Pin:
-
Pinacol
- PG:
-
Protecting group
- PMHS:
-
Polymethylhydrosiloxane
- PMP1:
-
p-Methoxyphenyl
- PMP2:
-
1,2,2,6,6-Pentamethylpiperidine
- Pr:
-
Propyl
- Rt:
-
Room temperature
- TBAF:
-
Tetrabutylammonium fluoride
- Tf:
-
Trifluoromethylsulfonate
- THF:
-
Tetrahydrofuran
- TMS:
-
Trimethylsilyl
- Tol:
-
Tolyl
- Ts:
-
Tosyl
References
Welch GC et al (2006) Reversible, Metal-Free Hydrogen Activation. Science 314(5802):1124–1126. https://doi.org/10.1126/science.1134230
Kenward AL, Piers WE (2008) Heterolytic H2 Activation by Nonmetals. Angew Chem Int Ed 47:38–41. https://doi.org/10.1002/anie.200702816
Stephan DW (2009) Frustrated Lewis Pairs: a New Strategy to Small Molecule Activation and Hydrogenation Catalysis. Dalton Trans 3129–3136. https://doi.org/10.1039/B819621D
Stephan DW, Erker G (2010) Frustrated Lewis Pairs: Metal-Free Hydrogen Activation and More. Angew Chem Int Ed 49:46–76. https://doi.org/10.1002/anie.200903708
Erker G (2011) Organometallic Frustrated Lewis Pair Chemistry. Dalton Trans 40:7475–7483. https://doi.org/10.1039/C1DT10152H
Soós T (2011) Design of Frustrated Lewis Pair Catalysts for Metal-Free and Selective Hydrogenation. Pure Appl Chem 83:667–675. https://doi.org/10.1351/PAC-CON-11-01-02
Erker G (2012) Frustrated Lewis Pairs: Some Recent Developments. Pure Appl Chem 84:2203–2217. https://doi.org/10.1351/PAC-CON-12-04-07
Paradies J (2014) Metal-Free Hydrogenation of Unsaturated Hydrocarbons Employing Molecular Hydrogen. Angew Chem Int Ed 53:3552–3557. https://doi.org/10.1002/anie.201309253
Stephan DW, Erker G (2015) Frustrated Lewis Pair Chemistry: Development and Perspectives. Angew Chem Int Ed 54:6400–6441. https://doi.org/10.1002/anie.201409800
Oestreich M, Hermeke J, Mohr J (2015) A Unified Survey of Si–H and H–H Bond Activation Catalysed by Electron-Deficient Boranes. Chem Soc Rev 44:2202–2220. https://doi.org/10.1039/C4CS00451E
Stephan DW (2015) Frustrated Lewis Pairs: From Concept to Catalysis. Acc Chem Res 48:306–316. https://doi.org/10.1021/ar500375j
Scott DJ, Fuchter MJ, Ashley AE (2017) Designing Effective “Frustrated Lewis Pair” Hydrogenation Catalysts. Chem Soc Rev 46:5689–5700. https://doi.org/10.1039/C7CS00154A
Liu Y, Du H (2014) Frustrated Lewis Pair Catalyzed Asymmetric Hydrogenation. Acta Chim Sinica 72:771–777. https://doi.org/10.6023/A14040344
Feng X, Du H (2014) Metal-Free Asymmetric Hydrogenation and Hydrosilylation Catalyzed by Frustrated Lewis Pairs. Tetrahedron Lett 55:6959–6964. https://doi.org/10.1016/j.tetlet.2014.10.138
Shi L, Zhou Y-G (2015) Enantioselective Metal-Free Hydrogenation Catalyzed by Chiral Frustrated Lewis Pairs. ChemCatChem 7:54–56. https://doi.org/10.1002/cctc.201402838
Wilkins LC, Melen RL (2016) Enantioselective Main Group Catalysis: Modern Catalysts for Organic Transformations. Coord Chem Rev 324:123–139. https://doi.org/10.1016/j.ccr.2016.07.011
Paradies J (2018) Chiral Borane-Based Lewis Acids for Metal Free Hydrogenations. Top Organomet Chem 62:193–216. https://doi.org/10.1007/3418_2016_173
Meng W, Feng X, Du H (2018) Frustrated Lewis Pairs Catalyzed Asymmetric Metal-Free Hydrogenations and Hydrosilylations. Acc Chem Res 51:191–201. https://doi.org/10.1021/acs.accounts.7b00530
Chen D, Klankermayer J (2008) Metal-Free Catalytic Hydrogenation of Imines with Tris(perfluorophenyl)borane. Chem Commun 18:2130–2131. https://doi.org/10.1039/B801806E
Chen D, Wang Y, Klankermayer J (2010) Enantioselective Hydrogenation with Chiral Frustrated Lewis Pairs. Angew Chem Int Ed 49:9475–9478. https://doi.org/10.1002/anie.201004525
Sumerin V, Chernichenko K, Nieger M, Leskelä M, Rieger B, Repo T (2011) Highly Active Metal-Free Catalysts for Hydrogenation of Unsaturated Nitrogen-Containing Compounds. Adv Synth Catal 353:2093–2110. https://doi.org/10.1002/adsc.201100206
Ghattas G, Chen D, Pan F, Klankermayer J (2012) Asymmetric Hydrogenation of Imines with a Recyclable Chiral Frustrated Lewis Pair Catalyst. Dalton Trans 41:9026–9028. https://doi.org/10.1039/C2DT30536D
Heiden ZM, Stephan DW (2011) Metal-Free Diastereoselective Catalytic Hydrogenations of Imines Using B(C6F5)3. Chem Commun 47:5729–5731. https://doi.org/10.1039/C1CC10438A
Chen D, Leich V, Pan F, Klankermayer J (2012) Enantioselective Hydrosilylation with Chiral Frustrated Lewis Pairs. Chem Eur J 18:5184–5187. https://doi.org/10.1002/chem.201200244
Mewald M, Fröhlich R, Oestreich M (2011) An Axially Chiral, Electron-Deficient Borane: Synthesis, Coordination Chemistry, Lewis Acidity, and Reactivity. Chem Eur J 17:9406–9414. https://doi.org/10.1002/chem.201100724
Mewald M, Oestreich M (2012) Illuminating the Mechanism of the Borane-Catalyzed Hydrosilylation of Imines with Both an Axially Chiral Borane and Silane. Chem Eur J 18:14079–14084. https://doi.org/10.1002/chem.201202693
Parks DJ, Piers WE, Yap GPA (1998) Synthesis, Properties, and Hydroboration Activity of the Highly Electrophilic Borane Bis(pentafluorophenyl)borane, HB(C6F5)2. Organometallics 17:5492–5503. https://doi.org/10.1021/om980673e
Liu Y, Du H (2013) Chiral Dienes as “Ligands” for Borane-Catalyzed Metal-Free Asymmetric Hydrogenation of Imines. J Am Chem Soc 135:6810–6813. https://doi.org/10.1021/ja4025808
Cao Z, Du H (2010) Development of Binaphthyl-Based Chiral Dienes for Rh(I)-Catalyzed Asymmetrc Arylation of N,N-Dimethylsulamoyl-Protected Aldimines. Org Lett 12:2602–2605. https://doi.org/10.1021/ol1008087
Lindqvist M, Borre K, Axenov K, Kótai B, Nieger M, Leskelä M, Pápai I, Repo T (2015) Chiral Molecular Tweezers: Synthesis and Reactivity in Asymmetric Hydrogenation. J Am Chem Soc 137:4038–4041. https://doi.org/10.1021/ja512658m
Wang X, Kehr G, Daniliuc CG, Erker G (2014) Internal Adduct Formation of Active Intramolecular C4-Bridged Frustrated Phosphane/Borane Lewis Pairs. J Am Chem Soc 136:3293–3303. https://doi.org/10.1021/ja413060u
Ye K-Y, Wang X, Daniliuc CG, Kehr G, Erker G (2017) A Ferrocene-Based Phosphane/Borane Frustrated Lewis Pair for Asymmetric Imine Reduction. Eur J Inorg Chem 368–371. https://doi.org/10.1002/ejic.201600834
Liu X, Liu T, Meng W, Du, H (2018) Asymmetric Hydrogenation of Imines with Chiral Alkene-Derived Boron Lewis Acids. Org Biomol Chem 16:8686–8689. https://doi.org/10.1039/C8OB02446D
Tu X-S, Zeng N‐N, Li R‐Y, Zhao Y‐Q, Xie D‐Z, Peng Q, Wang X‐C (2018) C2-Symmetric Bicyclic Bisborane Catalysts: Kinetic or Thermodynamic Products of a Reversible Hydroboration of Dienes. Angew Chem Int Ed 57:15096–15100. https://doi.org/10.1002/anie.201808289
Lam J, Günther BAR, Farrell JM, Eisenberger P, Bestvater BP, Newman PD, Melen RL, Crudden CM, Stephan DW (2016) Chiral Carbene-Borane Adducts: Precursors for Borenium Catalysts for Asymmetric FLP Hydrogenations. Dalton Trans 45:15303–15316. https://doi.org/10.1039/C6DT02202B
Mercea DM, Howlett MG, Piascik AD, Scott DJ, Steven A, Ashley AE, Fuchter MJ (2019) Enantioselective Reduction of N-Alkyl Ketimines with Frustrated Lewis Pair Catalysis Using Chiral Borenium Ions. Chem Commun 55:7077–7080. https://doi.org/10.1039/C9CC02900A
Zhu X, Du H (2015) A Highly Stereoselective Metal-Free Hydrogenation of Diimines for the Synthesis of Cis-Vicinal Diamines. Org Lett 17:3106–3109. https://doi.org/10.1021/acs.orglett.5b01380
Wei S, Feng X, Du H (2016) A Metal-Free Hydrogenation of 3-Substituted 2H-1,4-Benzoxazines. Org Biomol Chem 14:8026–8029. https://doi.org/10.1039/C6OB01556E
Mahdi T, del Castillo JN, Stephan DW (2013) Metal-Free Hydrogenation of N-Based Heterocycles. Organometallics 32:1971–1978. https://doi.org/10.1021/om4000727
Liu Y, Du H (2013) Metal-Free Borane-Catalyzed Highly Stereoselective Hydrogenation of Pyridines. J Am Chem Soc 135:12968–12971. https://doi.org/10.1021/ja406761j
Wang W, Feng X, Du H (2016) Borane-Catalyzed Metal-Free Hydrogenation of 2,7-Disubstituted 1,8-Naphthyridines. Org Biomol Chem 14:6683–6686. https://doi.org/10.1039/C6OB01172A
Zhang Z, Du H (2015) A Highly cis-Selective and Enantioselective Metal-Free Hydrogenation of 2,3-Disubstituted Quinoxalines. Angew Chem Int Ed 54:623–626. https://doi.org/10.1002/anie.201409471
Zhang Z, Du H (2015) Cis-Selective and Highly Enantioselective Hydrogenation of 2,3,4-Trisubstituted Quinolines. Org Lett 17:2816–2819. https://doi.org/10.1021/acs.orglett.5b01240
Zhang Z, Du H (2015) Enantioselective Metal-Free Hydrogenations of Disubstituted Quinolines. Org Lett 17:6266–6269. https://doi.org/10.1021/acs.orglett.5b03307
Han C, Zhang E, Feng X, Wang S, Du H (2018) B(C6F5)3-Catalyzed Metal-Free Hydrogenations of 2-Quinolinecarboxylates. Tetrahedron Lett 59:1400–1403. https://doi.org/10.1016/j.tetlet.2018.02.057
Li X, Tian J‐J, Liu N, Tu X‐S, Zeng N‐N, Wang X‐C (2019) Spiro-Bicyclic Bisborane Catalysts for Metal-Free Chemoselective and Enantioselective Hydrogenation of Quinolines. Angew Chem Int Ed 58:4664–4668. https://doi.org/10.1002/anie.201900907
Wang H, Fröhlich R, Kehr G, Erker G (2008) Heterolytic Dihydrogen Activation with the 1,8-Bis(diphenylphosphino)naphthalene/B(C6F5)3 Pair and Its Application for Metal-Free Catalytic Hydrogenation of Silyl Enol Ethers. Chem Commun 5966–5968. https://doi.org/10.1039/B813286K
Wei S, Du H (2014) A Highly Enantioselective Hydrogenation of Silyl Enol Ethers Catalyzed by Chiral Frustrated Lewis Pairs. J Am Chem Soc 136:12261–12264. https://doi.org/10.1021/ja507536n
Ren X, Li G, Wei S, Du H (2015) Facile Development of Chiral Alkenylboranes from Chiral Diynes for Asymmetric Hydrogenation of Silyl Enol Ethers. Org Lett 17:990–993. https://doi.org/10.1021/acs.orglett.5b00085
Mahdi T, Stephan DW (2014) Enabling Catalytic Ketone Hydrogenation by Frustrated Lewis Pairs. J Am Chem Soc 136:15809–15812. https://doi.org/10.1021/ja508829x
Scott DJ, Fuchter MJ, Ashley AE (2014) Nonmetal Catalyzed Hydrogenation of Carbonyl Compounds. J Am Chem Soc 136: 15813–15816. https://doi.org/10.1021/ja5088979
Gao B, Feng X, Meng W, Du H (2020) Asymmetric Hydrogenations of Ketones and Enones with Chiral Lewis Base Derived Frustrated Lewis Pairs. Angew Chem Int Ed 59:4498–4504. https://doi.org/10.1002/anie.201914568
Parks DJ, Piers WE (1996) Tris(pentafluorophenyl)boron-Catalyzed Hydrosilation of Aromatic Aldehydes, Ketones, and Esters. J Am Chem Soc 118:9440–9441. https://doi.org/10.1021/ja961536g
Zhu X, Du H (2015) A Chiral Borane Catalyzed Asymmetric Hydrosilylation of Imines. Org Biomol Chem 13:1013–1016. https://doi.org/10.1039/C4OB02419B
Ren X, Du H (2016) Chiral Frustrated Lewis Pairs Catalyzed Highly Enantioselective Hydrosilylations of 1,2-Dicarbonyl Compounds. J Am Chem Soc 138:810–813. https://doi.org/10.1021/jacs.5b13104
Süsse L, Hermeke J, Oestreich M (2016) The Asymmetric Piers Hydrosilylation. J Am Chem Soc 138:6940−6943. https://doi.org/10.1021/jacs.6b03443
Liu X, Wang Q, Han C, Feng X, Du H (2019) Chiral Frustrated Lewis Pairs Catalyzed Highly Enantioselective Hydrosilylations of Ketones. Chin J Chem 37:663–666. https://doi.org/10.1002/cjoc.201900121
Wang Q, Han C, Feng X, Du H (2019) Chiral Spiro Dienes Derived Boranes for Asymmetric Hydrosilylation of Ketones. Chin J Org Chem 39:2257–2263. https://doi.org/10.6023/cjoc201903076
Ren X, Han C, Feng X, Du H (2017) A Borane-Catalyzed Metal-Free Hydrosilylation of Chromones and Flavones. Synlett 28:2421–2424. https://doi.org/10.1055/s-0036-1588474
Pan Y, Chen C, Xu X, Zhao H, Han J, Li H, Xu L, Fan Q, Xiao J (2018) Metal-Free Tandem Cyclization/Hydrosilylation to Construct Tetrahydroquinoxalines. Green Chem 20:403–411. https://doi.org/10.1039/C7GC03095A
Li S, Li G, Meng W, Du H (2016) A Frustrated Lewis Pair Catalyzed Asymmetric Transfer Hydrogenation of Imines Using Ammonia Borane. J Am Chem Soc 138:12956–12962. https://doi.org/10.1021/jacs.6b07245
Li S, Meng W, Du H (2017) Asymmetric Transfer Hydrogenations of 2,3-Disubstituted Quinoxalines with Ammonia Borane. Org Lett 19:2604–2606. https://doi.org/10.1021/acs.orglett.7b00935
Zhao W, Feng Q, Yang J, Du H (2019) Asymmetric Transfer Hydrogenations of β-N-Substituted Enamino Esters with Ammonia Borane. Tetrahedron Lett 60:1193–1196. https://doi.org/10.1016/j.tetlet.2019.03.060
Wang Q, Chem J, Feng X, Du H (2018) B(C6F5)3-Catalyzed Transfer Hydrogenations of Imines with Hantzsch Esters. Org Biomol Chem 16:1448–1451. https://doi.org/10.1039/C8OB00023A
Shang M, Wang X, Moh Koo S, Youn J, Chan JZ, Yao W, Hastings BT, Wasa M (2017) Frustrated Lewis Acid/Brønsted Base Catalysts for Direct Enantioselective α-Amination of Carbonyl Compounds. J Am Chem Soc 139:95−98. https://doi.org/10.1021/jacs.6b11908
Chan JZ, Yao W, Hastings BT, Lok CK, Wasa M (2016) Direct Mannich-Type Reactions Promoted by Frustrated Lewis Acid/Brønsted Base Catalysts. Angew Chem Int Ed 55:13877–13881. https://doi.org/10.1002/anie.201608583
Shang M, Cao M, Wang Q, Wasa M (2017) Enantioselective Direct Mannich-Type Reactions Catalyzed by Frustrated Lewis Acid/Brønsted Base Complexes. Angew Chem Int Ed 56:13338–13341. https://doi.org/10.1002/anie.201708103
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Feng, X., Meng, W., Du, H. (2021). Frustrated Lewis Pair Catalyzed Asymmetric Reactions. In: Chris Slootweg, J., Jupp, A.R. (eds) Frustrated Lewis Pairs. Molecular Catalysis, vol 2. Springer, Cham. https://doi.org/10.1007/978-3-030-58888-5_2
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