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Schwans CL, Clark TD, O’Neil GW. Hydroxyl-Directed Regio- and Diastereoselective Allylic Sulfone Reductions with [Sm(H 2O) n]I 2. J Org Chem 2024; 89:692-700. [PMID: 38091512 PMCID: PMC10777405 DOI: 10.1021/acs.joc.3c01647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/19/2023] [Accepted: 11/21/2023] [Indexed: 01/06/2024]
Abstract
Allylic 1,2- and 1,3-hydroxy phenyl sulfones undergo regioselective and diastereoselective desulfonylation with double bond migration upon treatment with [Sm(H2O)n]I2. Selectivity in these reactions is thought to arise from the formation of a chelated organosamarium intermediate followed by intramolecular protonation by samarium-bound water, which is supported by observed diastereoselectivity and stereospecificity trends along with deuterium labeling experiments. The reaction was then featured in the synthesis of the phenolic fragment of the thailandamide natural products.
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Affiliation(s)
- Cody L. Schwans
- Department of Chemistry, Western Washington University, Bellingham, Washington 98225, United States
| | - Trevor D. Clark
- Department of Chemistry, Western Washington University, Bellingham, Washington 98225, United States
| | - Gregory W. O’Neil
- Department of Chemistry, Western Washington University, Bellingham, Washington 98225, United States
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Varsha V, Radhika S, Anilkumar G. An Overview of Julia-lythgoe Olefination. Curr Org Synth 2024; 21:97-126. [PMID: 37218208 DOI: 10.2174/1570179420666230510104114] [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: 08/29/2022] [Revised: 02/03/2023] [Accepted: 02/13/2023] [Indexed: 05/24/2023]
Abstract
Julia-Lythgoe olefination (or simply Julia olefination) is an olefination process between phenyl sulfones and aldehydes (or ketones) to give alkenes after alcohol functionalization and reductive elimination using sodium amalgam or SmI2. It is mainly used to synthesize E-alkenes and is a key step in numerous total syntheses of many natural products. This review exclusively deals with the Julia-Lythgoe olefination and concentrates mainly on the applications of this reaction in natural product synthesis covering literature up to 2021.
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Affiliation(s)
- Vijayan Varsha
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O, Kottayam, Kerala, 686560, India
| | - Sankaran Radhika
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O, Kottayam, Kerala, 686560, India
| | - Gopinathan Anilkumar
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O, Kottayam, Kerala, 686560, India
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Shakhmaev RN, Ignatishina MG, Zorin VV. Solvent-controlled retention or inversion of configuration in the Suzuki reaction of 2-bromo-1,3-dienes: Stereodivergent synthesis of trisubstituted conjugated alkenes. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Green AP, Hardy S, Thomas EJ. Synthetic approaches to the C11-C27 fragments of bryostatins. Org Biomol Chem 2017; 15:9475-9496. [PMID: 29109991 DOI: 10.1039/c7ob02127e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The modified Julia reaction and acyl carbanion chemistry, especially reactions of 2-lithiated dithianes, have been investigated for the synthesis of intermediates that are the synthetic equivalents of the C11-C27 fragments of bryostatins. The modified Julia reaction using 2-benzothiazolylsulfones was found to be more useful for the formation of the C16-C17 double-bond than the classical Julia reaction using phenylsulfones, and bulky sulfones gave very good (E)-stereoselectivity. The alkylation of a dithiane monoxide that corresponded to a C19-acyl carbanion using (E)-1-bromobut-2-ene was efficient but the use of a more complex allylic bromide corresponding to the C20-C27 fragment of the bryostatins was unsuccessful, possibly due to competing elimination reactions. This meant that the use of C19 dithianes for the synthesis of 20-deoxybryostatins would have to involve the stepwise assembly of the C20-C27 fragment from simpler precursors. However, lithiated C19 dithianes gave good yields of adducts with aldehydes and conditions were developed for the stereoselective conversion of the major adducts into methoxyacetals that corresponded to the C17-C27 fragment of 20-oxygenated bryostatins. A convergent synthesis of the C11-C27 fragment of a 20-deoxybryostatin was subsequently achieved using a 2-benzothiazolylsulfone corresponding to the intact C17-C27 fragment.
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Affiliation(s)
- Anthony P Green
- The School of Chemistry, The University of Manchester, Manchester M13 9PL, UK.
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Zhang N, Samanta SR, Rosen BM, Percec V. Single Electron Transfer in Radical Ion and Radical-Mediated Organic, Materials and Polymer Synthesis. Chem Rev 2014; 114:5848-958. [DOI: 10.1021/cr400689s] [Citation(s) in RCA: 320] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Na Zhang
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Shampa R. Samanta
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
| | - Brad M. Rosen
- DuPont Titanium Technologies, Chestnut Run Plaza, Wilmington, Delaware 19805, United States
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, United States
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Řehová L, Císařová I, Jahn U. Divergent Reactivity of Alkyl Aryl Sulfones with Bases: Selective Functionalization ofortho-Aryl and α-Alkyl Units Enabled by a Unique Carbanion Transmetalation. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301553] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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7
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Nakano T, Soeta T, Endo K, Inomata K, Ukaji Y. Stereoselective synthesis of (2Z,4E)-2,4-pentadien-1-ols via sequential 1,4-elimination reaction and [1,2]-Wittig rearrangement starting from (E)-4-alkoxy-2-butenyl benzoates. J Org Chem 2013; 78:12654-61. [PMID: 24245648 DOI: 10.1021/jo402272r] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The sequential 1,4-elimination reaction of (E)-4-alkoxy-2-butenyl benzoates and [1,2]-Wittig rearrangement gave (2Z,4E)-2,4-pentadien-1-ols stereoselectively. Z-Selective formation of intermediary vinyl ethers, whose stereochemistry was well elucidated by the "syn-effect", was achieved by treatment of the 2-butenyl benzoates with KOH in the presence of Pd catalyst. The subsequent [1,2]-Wittg rearrangement by use of n-BuLi proceeded with retention of the stereochemistry of the intermediary vinyl ethers.
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Affiliation(s)
- Takeo Nakano
- Division of Material Sciences, Graduate School of Natural Science and Technology, Kanazawa University , Kakuma, Kanazawa 920-1192, Japan
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Szostak M, Spain M, Procter DJ. Recent advances in the chemoselective reduction of functional groups mediated by samarium(ii) iodide: a single electron transfer approach. Chem Soc Rev 2013; 42:9155-83. [DOI: 10.1039/c3cs60223k] [Citation(s) in RCA: 164] [Impact Index Per Article: 14.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Volz EO, O’Neil GW. Chemoselective Samarium-Mediated Benzoyloxysulfone Eliminations. J Org Chem 2011; 76:8428-32. [DOI: 10.1021/jo201734t] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Erasmus O. Volz
- Department of Chemistry, Western Washington University, Bellingham, Washington 98225, United States
| | - Gregory W. O’Neil
- Department of Chemistry, Western Washington University, Bellingham, Washington 98225, United States
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O’Neil GW, Moser DJ, Volz EO. Metathesis reactions of β-acyloxysulfones: synthesis of 1,6- and 1,7-dienes. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.10.071] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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12
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Total Synthesis of (±)-5-Deoxystrigol via Reductive Carbon−Carbon Bond Formation. J Org Chem 2009; 74:3966-9. [DOI: 10.1021/jo9002085] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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13
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Ogawa K, Koyama Y, Ohashi I, Sato I, Hirama M. Total Synthesis of a Protected Aglycon of the Kedarcidin Chromophore. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200805518] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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14
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Ogawa K, Koyama Y, Ohashi I, Sato I, Hirama M. Total Synthesis of a Protected Aglycon of the Kedarcidin Chromophore. Angew Chem Int Ed Engl 2009; 48:1110-3. [DOI: 10.1002/anie.200805518] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Affiliation(s)
- Kevin Lam
- Département de Chimie, Bâtiment Lavoisier, Université catholique de Louvain, Place Louis Pasteur, 1, B-1348 Louvain-la-Neuve, Belgium
| | - István E. Markó
- Département de Chimie, Bâtiment Lavoisier, Université catholique de Louvain, Place Louis Pasteur, 1, B-1348 Louvain-la-Neuve, Belgium
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Inoue M, Ohashi I, Kawaguchi T, Hirama M. Total Synthesis of the C-1027 Chromophore Core: Extremely Facile Enediyne Formation through SmI2-Mediated 1,2-Elimination. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200704842] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Inoue M, Ohashi I, Kawaguchi T, Hirama M. Total Synthesis of the C-1027 Chromophore Core: Extremely Facile Enediyne Formation through SmI2-Mediated 1,2-Elimination. Angew Chem Int Ed Engl 2008; 47:1777-9. [DOI: 10.1002/anie.200704842] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Ogawa K, Koyama Y, Ohashi I, Sato I, Hirama M. Secure route to the epoxybicyclo[7.3.0]dodecadienediyne core of the kedarcidin chromophore. Chem Commun (Camb) 2008:6327-9. [DOI: 10.1039/b814595d] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Affiliation(s)
- Jirí Pospísil
- Département de Chimie, Bâtiment Lavoisier, Université catholique de Louvain, Place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
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Pospísil J, Markó IE. Efficient and Stereoselective Synthesis of Allylic Ethers and Alcohols. Org Lett 2006; 8:5983-6. [PMID: 17165910 DOI: 10.1021/ol062433y] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[Structure: see text] A short and efficient synthesis of allylic TBS ethers and allylic alcohols has been developed, based upon a unique Kocienski-Julia olefination reaction. Allylic alcohols and allylic ethers are obtained in good to excellent yields and with high (E)-selectivity. The conditions are mild and the procedure is broadly applicable.
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Affiliation(s)
- Jirí Pospísil
- Département de Chimie, Université catholique de Louvain, Bâtiment Lavoisier, Place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
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Alonso DA, Fuensanta M, Nájera C. 3,5-Bis(trifluoromethyl)phenyl Sulfones in the Julia–Kocienski Olefination – Application to the Synthesis of Tri- and Tetrasubstituted Olefins. European J Org Chem 2006. [DOI: 10.1002/ejoc.200600478] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Hodgson DM, Hachisu S, Andrews MD. Stereocontrolled syntheses of kainoid amino acids from 7-azabicyclo[2.2.1]heptadienes using tandem radical addition-homoallylic radical rearrangement. J Org Chem 2006; 70:8866-76. [PMID: 16238320 DOI: 10.1021/jo0513865] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction; see text] N-Boc syn-7-(2-hydroxyethyl)-4-(alkyl or aryl)sulfonyl-2-azabicyclo[2.2.1]hept-5-enes serve as precursors in syntheses of the neuroexcitants 3-(carboxymethyl)pyrrolidine-2,4-dicarboxylic acid 43, alpha-kainic acid 12, alpha-isokainic acid 14, and alpha-dihydroallokainic acid 77. The key step in these syntheses is the intermolecular radical addition of 2-iodoethanol to a N-Boc 2-(alkyl or aryl)sulfonyl-7-azabicyclo[2.2.1]heptadiene 7 to induce nitrogen-directed homoallylic radical rearrangement. Oxidative cleavage of the resulting 2-azabicyclo[2.2.1]hept-5-enes provide straightforward access to polysubstituted pyrrolidines and, in particular, an efficient entry to the kainoid amino acids.
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Affiliation(s)
- David M Hodgson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, UK.
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The Smiles Rearrangement and the Julia–Kocienski Olefination Reaction. Top Curr Chem (Cham) 2006; 275:163-250. [DOI: 10.1007/128_049] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Pospísil J, Pospísil T, Markó IE. Sulfoxides in Julia−Lythgoe Olefination: Efficient and Stereoselective Preparation of Di-, Tri-, and Tetrasubstituted Olefins. Org Lett 2005; 7:2373-6. [PMID: 15932201 DOI: 10.1021/ol050649e] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
[reaction: see text] A novel modification of the classical Julia-Lythgoe olefination, using sulfoxides instead of sulfones, affords, after in situ benzoylation and SmI2/HMPA- or DMPU-mediated reductive elimination, 1,2-di-, tri-, and tetrasubstituted olefins in moderate to excellent yields and E/Z selectivity. The conditions are mild, and the procedure is broadly applicable.
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Affiliation(s)
- Jirí Pospísil
- Université Catholique de Louvain, Département de Chimie, Bâtiment Lavoisier, Place Louis Pasteur 1, B-1348 Louvain-la-Neuve, Belgium
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Wicha J, Zarecki A. Olefination of α-Hydroxy or α-Aminoaldehyde Derivatives via Reaction of Their Arylsulfonylhydrazones with Sulfonyl Anions. J Org Chem 2004; 69:5810-2. [PMID: 15307767 DOI: 10.1021/jo0499118] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Reaction of tosylhydrazones of O-substituted alpha-hydroxy or N-substituted alpha-amino aldehydes (2, 7, 11, 15, 17, and 20) with selected alpha-magnesio alkyl phenyl sulfones afforded the respective derivatives of allylic alcohols or allylic amines. 2,3-O-Isopropylidene-D-glyceraldehyde (1) was transformed into its tosylhydrazone (2) and then olefins 4a with retention of optical purity.
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Affiliation(s)
- Jerzy Wicha
- Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44, 01-224 Warsaw, Poland.
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Abstract
The development of methodologies for the formation of carbon-carbon double bonds could be considered one of the most important challenges in organic synthesis. To this end, beta-elimination reactions in 1,2-difunctionalised substrates have been one of the most important means of generating C=C bonds. This review is intended to highlight the use of SmI2 in beta-elimination procedures, such that the organization of this revision highlights conventional beta-elimination processes which are promoted by samarium diiodide. The synthetic applications of SmI2 will be covered, and 1,2-elimination reactions which are involved in sequential reactions promoted by samarium diiodide, will also be illustrated. These methodologies along with the more recent developments in the area are discussed in this tutorial review.
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Affiliation(s)
- Jose M Concellón
- Dpto. Química Orgánica e Inorgánica, Universidad de Oviedo, Avda. Julián Clavería, 8, 33071 Oviedo, Spain.
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Carboncarbon bond formation on solid support. Application of the classical Julia–Lythgoe olefination. Tetrahedron Lett 2003. [DOI: 10.1016/s0040-4039(03)01637-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Williams DBG, Caddy J, Blann K. FRAGMENTATION AND CLEAVAGE REACTIONS MEDIATED BY SAMARIUM IODIDE. PART 2: α- AND β-ELIMINATION REACTIONS OF C-X SUBSTRATES. ORG PREP PROCED INT 2003. [DOI: 10.1080/00304940309356020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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Markó I, Kumamoto T, Giard T. Remarkable Stereocontrol in the Palladium-Catalysed Cyclopropanation of Vinyl- and Dienylboronates by Substituted Diazoalkanes. Adv Synth Catal 2002. [DOI: 10.1002/1615-4169(200212)344:10<1063::aid-adsc1063>3.0.co;2-l] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Havránek M, Dvorák D. 3,3-Disubstituted allyl alcohols from palladium-catalyzed coupling of hydroaluminated propargyl alcohols with aryl iodides. J Org Chem 2002; 67:2125-30. [PMID: 11925218 DOI: 10.1021/jo0162235] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
3,3-Disubstituted prop-2-en-1-ols 4 were synthesized with a high degree of stereoselectivity from 3-substituted prop-2-yn-1-ols 1 via hydroalumination and subsequent Pd-catalyzed coupling with aryl iodides 3.
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Affiliation(s)
- Miroslav Havránek
- Department of Organic Chemistry, Prague Institute of Chemical Technology, Technická 5, 166 28 Prague 6, Czech Republic
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Reutrakul V, Jarussophon S, Pohmakotr M, Chaiyasut Y, U-Thet S, Tuchinda P. Samarium(II) iodide-mediated deoxygenative debromination of α-bromo-β-hydroxy (acetoxy) phenyl sulfones: synthesis of α,β-unsaturated sulfones. Tetrahedron Lett 2002. [DOI: 10.1016/s0040-4039(02)00224-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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