Chemistry:Passerini reaction

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Passerini reaction
Named after Mario Passerini
Reaction type Carbon-carbon bond forming reaction
Identifiers
Organic Chemistry Portal passerini-reaction
RSC ontology ID RXNO:0000244

The Passerini reaction is a chemical reaction involving an isocyanide, an aldehyde (or ketone), and a carboxylic acid to form a α-acyloxy amide.[1][2][3][4][5] This addition reaction is one of the oldest isocyanide-based multicomponent reactions and was first described in 1921 by Mario Passerini in Florence, Italy.[6][7] It is typically carried out in aprotic solvents but can also be performed in ionic liquids such as water or deep eutectic solvents.[7] It is a third order reaction; first order in each of the reactants. The Passerini reaction is often used in combinatorial and medicinal chemistry with recent utility in green chemistry and polymer chemistry.[6][8][9] As isocyanides exhibit high functional group tolerance, chemoselectivity, regioselectivity, and stereoselectivity, the Passerini reaction has a wide range of synthetic applications.[6][10][11][12]

The Passerini reaction

Mechanism

The Passerini reaction has been hypothesized to occur through two mechanistic pathways.[10][7][11] The reaction pathways are dependent on the solvent used.

Concerted mechanism

A concerted mechanism, seen in SN2 and Diels−Alder reactions, is theorized to occur when the Passerini reagents are present at high concentration in aprotic solvents.[10]

Proposed concerted version of the Passerini reaction mechanism.

This mechanism involves a trimolecular reaction between the isocyanide, carboxylic acid, and carbonyl in a sequence of nucleophilic additions. The reaction proceeds first through an imidate intermediate and then undergoes Mumm rearrangement to afford the Passerini product.[13][14]

As the Mumm rearrangement requires a second carboxylic acid molecule, this mechanism classifies the Passerini reaction as an organocatalytic reaction.[14][15]

Ionic mechanism

Proposed ionic version of the Passerini reaction mechanism.

In polar solvents, such as methanol or water, the carbonyl is protonated before nucleophilic addition of the isocyanide, affording a nitrilium ion intermediate. This is followed by the addition of a carboxylate, acyl group transfer and proton transfer respectively to give the desired Passerini product.[11][7]

Reaction control

Molecular weights of polymers synthesized through the Passerini can be controlled through stoichiometric means.[16] For example, polymer chain length and weight can adjusted through isocyanide stoichiometry, and polymer geometry can be influenced through starting reagents.[16][17] To facilitate the Passerini reaction between bulky, sterically hindered reagents, a vortex fluidic device can be used to induce high shear conditions. These conditions emulate the effects of high temperature and pressure, allowing the Passerini reaction to proceed fairly quickly.[18] The Passerini reaction can also exhibit enantioselectivity. Addition of tert-butyl isocyanide to a wide variety of aldehydes (aromatic, heteroaromatic, olefinic, acetylenic, aliphatic) is achieved using a catalytic system of tetrachloride and a chiral bisphosphoramide which provides good yield and good enantioselectivities.[19] For other types of isocyanides, rate of addition of isocyanide to reaction mixture dictates good yields and high selectivities.[19]

Applications

Apart from forming α-acyloxy amide products, the Passerini reaction can be used to form heterocycles, polymers, amino acids, and medicinal products.

Heterocycles

Isocoumarin structure, a heterocycle afforded by a post-Passerini cyclyization reaction.

The original Passerini reaction produces acyclic depsipeptides which are labile in physiological conditions. To increase product stability for medicinal use, post-Passerini cyclization reactions have been used to afford heterocycles such as β-lactams, butenolides, and isocoumarins.[16] To enable these cyclizations, reagents are pre-functionalized with reactive groups (ex. halogens, azides, etc.) and used in tandem with other reactions (ex. Passerini-Knoevenagel, Passerini-Dieckmann) to afford heterocyclic products.[16] Compounds like three membered oxirane and aziridine derivatives, four-membered b-lactams, and five-membered tetrasubstituted 4,5-dihydropyrazoles have been produced through this reaction.[12]

Polymers

Dendrimer general structure, a type of polymer that the Passerini reaction forms.

This reaction has also been used for polymerization, monomer formation, and post-polymerization modification.[20][21][22][17][23] The Passerini reaction has also been used to form sequence-defined polymers.[24] Bifunctional substrates can be used to undergo post-polymerization modification or serve as precursors for polymerization.[10][11][8] As this reaction has high functional group tolerance, the polymers created using this reaction are widely diverse with tuneable properties.[20] Macromolecules that have been produced with this reaction include macroamides, macrocyclic depsipeptides, three-component dendrimers and three-armed star branched mesogen core molecules.[12]

Amino acids and pharmaceuticals

Passerini reaction has been employed for the formation of structures like α-amino acids, α-hydroxy-β-amino acids, α-ketoamides, β-ketoamides, α-hydroxyketones and α-aminoxyamides.[12] The Passerini reaction has synthesized α-Acyloxy carboxamides that have demonstrated activity as anti-cancer medications along with functionalized [C60]-fullerenes used in medicinal and plant chemistry.[12][25] This reaction has also been used as a synthetic step in the total synthesis of commercially available pharmaceuticals such as telaprevir (VX-950), an antiviral sold by Vertex Pharmaceuticals and Johnson & Johnson.[12]

The antiviral drug telaprevir, the Passerini reaction is used in its synthesis.

See also

References

  1. ↑ Passerini, M.; Simone, L. Gazz. Chim. Ital. 1921, 51, 126–29.
  2. ↑ Passerini, M.; Ragni, G. Gazz. Chim. Ital. 1931, 61, 964–69.
  3. ↑ Banfi, L.; Riva, R. (2005). The Passerini Reaction. 65. 1–140. doi:10.1002/0471264180.or065.01. ISBN 978-0471264187. .
  4. ↑ Kazemizadeh, A.R.; Ramazani, A. (2012). "Synthetic applications of Passerini reaction". Curr. Org. Chem. 16 (4): 418–450. doi:10.2174/138527212799499868. 
  5. ↑ Banfi, L.; Basso, A.; Lambruschini, C.; Moni, L.; Riva, R. (2021). "The 100 facets of the Passerini reaction". Chem. Sci. 12 (47): 15445–15472. doi:10.1039/D1SC03810A. PMID 35003575. 
  6. ↑ 6.0 6.1 6.2 Tuten, Bryan T.; Bui, Aaron H.; Wiedbrauk, Sandra; Truong, Vinh X.; Raston, Colin L.; Barner-Kowollik, Christopher (2021-08-19). "Four component Passerini polymerization of bulky monomers under high shear flow" (in en). Chemical Communications 57 (67): 8328–8331. doi:10.1039/D1CC02984C. ISSN 1364-548X. PMID 34323263. https://pubs.rsc.org/en/content/articlelanding/2021/cc/d1cc02984c. 
  7. ↑ 7.0 7.1 7.2 7.3 Antenucci, Achille; Marra, Francesco; Dughera, Stefano (2021). "Silica gel-immobilised chiral 1, 2-benzenedisulfonimide: a Brønsted acid heterogeneous catalyst for enantioselective multicomponent Passerini reaction". RSC Advances 11 (42): 26083–26092. doi:10.1039/D1RA05297G. PMID 35479468. Bibcode: 2021RSCAd..1126083A. 
  8. ↑ 8.0 8.1 Abbasi, Elham; Aval, Sedigheh Fekri; Akbarzadeh, Abolfazl; Milani, Morteza; Nasrabadi, Hamid Tayefi; Joo, Sang Woo; Hanifehpour, Younes; Nejati-Koshki, Kazem et al. (2014-05-21). "Dendrimers: synthesis, applications, and properties". Nanoscale Research Letters 9 (1): 247. doi:10.1186/1556-276X-9-247. ISSN 1556-276X. PMID 24994950. Bibcode: 2014NRL.....9..247A. 
  9. ↑ Dömling, A.; Ugi, I. Angew. Chem. Int. Ed. Engl. 2000, 39, 3168–3210. (Review)
  10. ↑ 10.0 10.1 10.2 10.3 The Passirini Reaction L. Banfi, R.Riva in Organic Reactions vol. 65 L.E. Overman Ed. Wiley 2005 ISBN:0-471-68260-8
  11. ↑ 11.0 11.1 11.2 11.3 Taran, Jafar; Ramazani, Ali; Joo, Sang Woo; Ślepokura, Katarzyna; Lis, Tadeusz (2014). "Synthesis of Novel a-(Acyloxy)-a-(quinolin-4-yl)acetamides by a ThreeComponent Reaction between an Isocyanide, Quinoline-4-carbaldehyde, and Arenecarboxylic Acids". Helvetica Chimica Acta 97: 1088–1096. doi:10.1002/hlca.201300378. 
  12. ↑ 12.0 12.1 12.2 12.3 12.4 12.5 Wahby, Yasmin; Abdel-Hamid, Hamida; Ayoup, Mohammed Salah (2022). "Two decades of recent advances of Passerini reactions: synthetic and potential pharmaceutical applications" (in en). New Journal of Chemistry 46 (4): 1445–1468. doi:10.1039/D1NJ03832J. ISSN 1144-0546. http://xlink.rsc.org/?DOI=D1NJ03832J. 
  13. ↑ Li, Jie Jack (2021), Li, Jie Jack, ed., "Passerini Reaction" (in en), Name Reactions: A Collection of Detailed Mechanisms and Synthetic Applications (Cham: Springer International Publishing): pp. 424–426, doi:10.1007/978-3-030-50865-4_115, ISBN 978-3-030-50865-4, https://doi.org/10.1007/978-3-030-50865-4_115, retrieved 2022-10-24 
  14. ↑ 14.0 14.1 Ramozzi, Romain; Morokuma, Keiji (2015-06-05). "Revisiting the Passerini Reaction Mechanism: Existence of the Nitrilium, Organocatalysis of Its Formation, and Solvent Effect" (in en). The Journal of Organic Chemistry 80 (11): 5652–5657. doi:10.1021/acs.joc.5b00594. ISSN 0022-3263. PMID 25974627. https://pubs.acs.org/doi/10.1021/acs.joc.5b00594. 
  15. ↑ Marcelli, Tommaso; Olimpieri, Francesca; Volonterio, Alessandro (2011-06-29). "Domino synthesis of 1,3,5-trisubstituted hydantoins: a DFT study" (in en). Organic & Biomolecular Chemistry 9 (14): 5156–5161. doi:10.1039/C1OB05242J. ISSN 1477-0539. PMID 21643563. https://pubs.rsc.org/en/content/articlelanding/2011/ob/c1ob05242j. 
  16. ↑ 16.0 16.1 16.2 16.3 Oelmann, S.; Solleder, S. C.; Meier, M. a. R. (2016-03-01). "Controlling molecular weight and polymer architecture during the Passerini three component step-growth polymerization" (in en). Polymer Chemistry 7 (10): 1857–1860. doi:10.1039/C5PY02030A. ISSN 1759-9962. 
  17. ↑ 17.0 17.1 Rudick, Jonathan G. (October 2013). "Innovative macromolecular syntheses via isocyanide multicomponent reactions" (in en). Journal of Polymer Science Part A: Polymer Chemistry 51 (19): 3985–3991. doi:10.1002/pola.26808. Bibcode: 2013JPoSA..51.3985R. https://onlinelibrary.wiley.com/doi/10.1002/pola.26808. 
  18. ↑ Tuten, Bryan T.; Bui, Aaron H.; Wiedbrauk, Sandra; Truong, Vinh X.; Raston, Colin L.; Barner-Kowollik, Christopher (2021). "Four component Passerini polymerization of bulky monomers under high shear flow". Chemical Communications 57: 8328-8331. doi:10.1039/D1CC02984C. https://pubs.rsc.org/en/content/articlehtml/2021/xx/d1cc02984c. 
  19. ↑ 19.0 19.1 Denmark, Scott E.; Fan, Yu (2005-11-01). "Catalytic, Enantioselective α-Additions of Isocyanides: Lewis Base Catalyzed Passerini-Type Reactions" (in en). The Journal of Organic Chemistry 70 (24): 9667–9676. doi:10.1021/jo050549m. ISSN 0022-3263. PMID 16292793. https://pubs.acs.org/doi/10.1021/jo050549m. 
  20. ↑ 20.0 20.1 Kreye, Oliver; Tóth, Tommy; Meier, Michael A. R. (2011-02-16). "Introducing Multicomponent Reactions to Polymer Science: Passerini Reactions of Renewable Monomers" (in en). Journal of the American Chemical Society 133 (6): 1790–1792. doi:10.1021/ja1113003. ISSN 0002-7863. PMID 21265532. https://pubs.acs.org/doi/10.1021/ja1113003. 
  21. ↑ Li, Lei; Lv, An; Deng, Xin-Xing; Du, Fu-Sheng; Li, Zi-Chen (2013-08-28). "Facile synthesis of photo-cleavable polymers via Passerini reaction" (in en). Chemical Communications 49 (76): 8549–8551. doi:10.1039/C3CC44557G. ISSN 1364-548X. PMID 23945608. https://pubs.rsc.org/en/content/articlelanding/2013/cc/c3cc44557g. 
  22. ↑ Sehlinger, Ansgar; Kreye, Oliver; Meier, Michael A. R. (2013-08-13). "Tunable Polymers Obtained from Passerini Multicomponent Reaction Derived Acrylate Monomers" (in en). Macromolecules 46 (15): 6031–6037. doi:10.1021/ma401125j. ISSN 0024-9297. Bibcode: 2013MaMol..46.6031S. https://pubs.acs.org/doi/10.1021/ma401125j. 
  23. ↑ Travanut, Alessandra; Monteiro, Patrícia F.; Oelmann, Stefan; Howdle, Steven M.; Grabowska, Anna M.; Clarke, Philip A.; Ritchie, Alison A.; Meier, Michael A. R. et al. (March 2021). "Synthesis of Passerini‐3CR Polymers and Assembly into Cytocompatible Polymersomes" (in en). Macromolecular Rapid Communications 42 (6): 2000321. doi:10.1002/marc.202000321. ISSN 1022-1336. PMID 33249682. 
  24. ↑ Solleder, Susanne C.; Meier, Michael A. R. (2014-01-13). "Sequence Control in Polymer Chemistry through the Passerini Three-Component Reaction" (in en). Angewandte Chemie International Edition 53 (3): 711–714. doi:10.1002/anie.201308960. PMID 24307280. https://onlinelibrary.wiley.com/doi/10.1002/anie.201308960. 
  25. ↑ Ravanello, Bruno B.; Seixas, Nalin; Rodrigues, Oscar E. D.; da Silva, Rafael S.; Villetti, Marcos A.; Frolov, Andrej; Rivera, Daniel G.; Westermann, Bernhard (2018-07-11). "Diversity Driven Decoration and Ligation of Fullerene by Ugi and Passerini Multicomponent Reactions" (in en). Chemistry – A European Journal 24 (39): 9788–9793. doi:10.1002/chem.201802414. PMID 29882608. https://onlinelibrary.wiley.com/doi/10.1002/chem.201802414. 



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