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Lu HX, Wang C, Gao TT, Lin EZ, Lu SL, Hong X, Li BJ. Rhodium-Catalyzed Highly Enantioselective Hydroboration of Acyclic Tetrasubstituted Alkenes Directed by an Amide. J Am Chem Soc 2024; 146:16194-16202. [PMID: 38832699 DOI: 10.1021/jacs.4c04108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Although progress has been made in enantioselective hydroboration of di- and trisubstituted alkenes over the past decades, enantioselective hydroboration of tetrasubstituted alkenes with high diastereo- and enantioselectivities continues as an unmet challenge since the 1950s due to its extremely low reactivity and the difficulties to simultaneously control the regio- and stereoselectivity of a tetrasubstituted alkene. Here, we report highly regio-, diastereo-, and enantioselective catalytic hydroboration of diverse acyclic tetrasubstituted alkenes. The delicate interplay of an electron-rich rhodium complex and coordination-assistance forms a highly adaptive catalyst that effectively overcomes the low reactivity and controls the stereoselectivity. The generality of the catalyst system is exemplified by its efficacy across various tetrasubstituted alkenes with diverse steric and electronic properties.
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Affiliation(s)
- Hou-Xiang Lu
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Cheng Wang
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
| | - Tao-Tao Gao
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - En-Ze Lin
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Shou-Lin Lu
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Xin Hong
- Center of Chemistry for Frontier Technologies, Department of Chemistry, State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China
- Beijing National Laboratory for Molecular Sciences, Zhongguancun North First Street No. 2, Beijing 100190, China
| | - Bi-Jie Li
- Center of Basic Molecular Science (CBMS), Department of Chemistry, Tsinghua University, Beijing 100084, China
- Engineering Research Center of Advanced Rare Earth Materials (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing 100084, China
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2
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Moreno González A, Nicholson K, Llopis N, Nichol GS, Langer T, Baeza A, Thomas SP. Diastereoselective, Catalytic Access to Cross-Aldol Products Directly from Esters and Lactones. Angew Chem Int Ed Engl 2022; 61:e202209584. [PMID: 35916601 PMCID: PMC9804986 DOI: 10.1002/anie.202209584] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Indexed: 01/09/2023]
Abstract
High oxidation-state carbonyl coupling partners including esters and lactones were reacted with enones to give aldol-type products directly using two-fold organoborane catalysis. This new retrosynthetic disconnection to aldol-type products is compatible with enolisable coupling partners, without self-condensation, and couples the high reactivity of secondary dialkylboranes with the stability of pinacolboronic esters. Excellent chemoselectivity, substrate scope (including those containing reducible functionalities and free alcohols) and diastereocontrol were achieved to access both the syn- and anti-aldol-type products. Mechanistic studies confirmed the two-fold catalytic role of the single secondary borane catalyst for boron enolate formation and formation of an aldehyde surrogate from the ester or lactone coupling partner.
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Affiliation(s)
- Adrián Moreno González
- EaStCHEM School of ChemistryUniversity of EdinburghDavid Brewster RoadEdinburghEH9 3FJUK
| | - Kieran Nicholson
- EaStCHEM School of ChemistryUniversity of EdinburghDavid Brewster RoadEdinburghEH9 3FJUK
| | - Natalia Llopis
- EaStCHEM School of ChemistryUniversity of EdinburghDavid Brewster RoadEdinburghEH9 3FJUK
| | - Gary S. Nichol
- EaStCHEM School of ChemistryUniversity of EdinburghDavid Brewster RoadEdinburghEH9 3FJUK
| | - Thomas Langer
- AstraZeneca Pharmaceutical Technology & DevelopmentChemical Development UKSilk RoadMacclesfieldSK10 2NAUK
| | - Alejandro Baeza
- Instituto de Síntesis Orgánica and Dpto. de Química OrgánicaUniversidad de AlicanteApdo. 9903080AlicanteSpain
| | - Stephen P. Thomas
- EaStCHEM School of ChemistryUniversity of EdinburghDavid Brewster RoadEdinburghEH9 3FJUK
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3
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Thomas S, González AM, Nicholson K, Llopis N, Nichol GS, Langer T, Baeza A. Diastereoselective, Catalytic Access to Cross‐aldol Products Directly from Esters and Lactones. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Stephen Thomas
- University of Edinburgh School of Chemistry Joseph Black Building,King's Buildings, West Mains Road EH9 3FJ Edinburgh UNITED KINGDOM
| | | | - Kieran Nicholson
- The University of Edinburgh School of Chemistry School of Chemistry UNITED KINGDOM
| | - Natalia Llopis
- The University of Edinburgh School of Chemistry School of Chemistry UNITED KINGDOM
| | - Gary S. Nichol
- The University of Edinburgh School of Chemistry School of Chemistry UNITED KINGDOM
| | - Thomas Langer
- AstraZeneca UK Ltd Macclesfield Chemical Development UK UNITED KINGDOM
| | - Alejandro Baeza
- Universidad de Alicante: Universitat d'Alacant Dpto. de Química Orgánica SPAIN
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4
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Affiliation(s)
- Lona Dutta
- Organic Synthesis and Catalysis Lab Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, S. A. S. Nagar Manauli PO Punjab 140306 India
| | - Atanu Mondal
- Organic Synthesis and Catalysis Lab Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, S. A. S. Nagar Manauli PO Punjab 140306 India
| | - S. S. V. Ramasastry
- Organic Synthesis and Catalysis Lab Department of Chemical Sciences Indian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, S. A. S. Nagar Manauli PO Punjab 140306 India
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Meyer CC, Ortiz E, Krische MJ. Catalytic Reductive Aldol and Mannich Reactions of Enone, Acrylate, and Vinyl Heteroaromatic Pronucleophiles. Chem Rev 2020; 120:3721-3748. [PMID: 32191438 PMCID: PMC7904107 DOI: 10.1021/acs.chemrev.0c00053] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Catalytic reductive coupling of enone, acrylate, or vinyl heteroaromatic pronucleophiles with carbonyl or imine partners offers an alternative to base-mediated enolization in aldol- and Mannich-type reactions. In this review, direct catalytic reductive aldol and Mannich reactions are exhaustively catalogued on the basis of metal or organocatalyst. Stepwise processes involving enone conjugate reduction to form discrete enol or (metallo)enolate derivatives followed by introduction of carbonyl or imine electrophiles and aldol reactions initiated via enone conjugate addition are not covered.
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Affiliation(s)
- Cole C. Meyer
- University of Texas at Austin, Department of Chemistry, Welch Hall
(A5300), 105 E 24 St., Austin, TX 78712, USA
| | - Eliezer Ortiz
- University of Texas at Austin, Department of Chemistry, Welch Hall
(A5300), 105 E 24 St., Austin, TX 78712, USA
| | - Michael J. Krische
- University of Texas at Austin, Department of Chemistry, Welch Hall
(A5300), 105 E 24 St., Austin, TX 78712, USA
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6
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Asymmetric Organocatalytic C-C Bond Forming Reactions with Organoboron Compounds: A Mechanistic Survey. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900029] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Millán A, Grigol Martinez PD, Aggarwal VK. Stereocontrolled Synthesis of Polypropionate Fragments based on a Building Block Assembly Strategy using Lithiation-Borylation Methodologies. Chemistry 2017; 24:730-735. [DOI: 10.1002/chem.201704946] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Alba Millán
- School of Chemistry; University of Bristol, Cantock's Close; Bristol BS8 1TS UK
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Affiliation(s)
- Atsushi Abiko
- Department of Biobased Materials Science, Graduate School of Science and Technology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
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Tsakos M, Clement LL, Schaffert ES, Olsen FN, Rupiani S, Djurhuus R, Yu W, Jacobsen KM, Villadsen NL, Poulsen TB. Total Synthesis and Biological Evaluation of Rakicidin A and Discovery of a Simplified Bioactive Analogue. Angew Chem Int Ed Engl 2015; 55:1030-5. [DOI: 10.1002/anie.201509926] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Indexed: 01/19/2023]
Affiliation(s)
- Michail Tsakos
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Lise L. Clement
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Eva S. Schaffert
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Frank N. Olsen
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Sebastiano Rupiani
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Rasmus Djurhuus
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Wanwan Yu
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Kristian M. Jacobsen
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Nikolaj L. Villadsen
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Thomas B. Poulsen
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
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Tsakos M, Clement LL, Schaffert ES, Olsen FN, Rupiani S, Djurhuus R, Yu W, Jacobsen KM, Villadsen NL, Poulsen TB. Total Synthesis and Biological Evaluation of Rakicidin A and Discovery of a Simplified Bioactive Analogue. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201509926] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Michail Tsakos
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Lise L. Clement
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Eva S. Schaffert
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Frank N. Olsen
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Sebastiano Rupiani
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Rasmus Djurhuus
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Wanwan Yu
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Kristian M. Jacobsen
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Nikolaj L. Villadsen
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
| | - Thomas B. Poulsen
- Department of Chemistry; Aarhus University; Langelandsgade 140 8000 Aarhus C Denmark
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Enantio- and diastereoselective synthesis of syn -β-hydroxy-α-alkenyl carboxamides via reductive aldol reactions of morpholine 4-methyl-2,3-pentadienoic carboxamide with diisopinocampheylborane. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.01.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Allais C, Tsai AS, Nuhant P, Roush WR. Generation of stereochemically defined tetrasubstituted enolborinates by 1,4-hydroboration of α,β-unsaturated morpholine carboxamides with (diisopinocampheyl)borane. Angew Chem Int Ed Engl 2013; 52:12888-12891. [PMID: 24281884 PMCID: PMC3910328 DOI: 10.1002/anie.201307302] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Revised: 09/15/2013] [Indexed: 11/10/2022]
Abstract
On all fours: The title reaction with (Ipc)2 BH provides tetrasubstituted enolborinates which undergo aldol reactions with aldehydes to form products with all-carbon quaternary centers with exceptional diastereo- and enantioselectivity. A change to the substitution pattern of the starting amide leads to either diastereomer of the α-methyl-α-ethyl-β-hydroxy carboxamide (1 or 2).
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Affiliation(s)
- Christophe Allais
- Department of Chemistry The Scripps Research Institute 130 Scripps Way,
3A2, Jupiter FL 33458 (USA)
| | - Andy S. Tsai
- Department of Chemistry The Scripps Research Institute 130 Scripps Way,
3A2, Jupiter FL 33458 (USA)
| | - Philippe Nuhant
- Department of Chemistry The Scripps Research Institute 130 Scripps Way,
3A2, Jupiter FL 33458 (USA)
| | - William R. Roush
- Department of Chemistry The Scripps Research Institute 130 Scripps Way,
3A2, Jupiter FL 33458 (USA)
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13
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Kister J, Ess DH, Roush WR. Enantio- and diastereoselective synthesis of syn-β-hydroxy-α-vinyl carboxylic esters via reductive aldol reactions of ethyl allenecarboxylate with 10-TMS-9-Borabicyclo[3.3.2]decane and DFT analysis of the hydroboration pathway. Org Lett 2013; 15:5436-9. [PMID: 24138187 DOI: 10.1021/ol4025277] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An enantio- and diastereoselective synthesis of syn-β-hydroxy-α-vinyl carboxylate esters 3 via the reductive aldol reaction of ethyl allenecarboxylate (2) with 10-trimethylsilyl-9-borabicyclo[3.3.2]decane (1R) has been developed. Density functional theory calculations suggest that the allene hydroboration involves the 1,4-reduction of 2 with the 1R, leading directly to dienolborinate Z-(O)-8a.
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Affiliation(s)
- Jeremy Kister
- Department of Chemistry, Scripps Florida , Jupiter, Florida 33458, United States, and Department of Chemistry and Biochemistry, Brigham Young University , Provo, Utah 84602, United States
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14
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Allais C, Tsai AS, Nuhant P, Roush WR. Generation of Stereochemically Defined Tetrasubstituted Enolborinates by 1,4-Hydroboration of α,β-Unsaturated Morpholine Carboxamides with (Diisopinocampheyl)borane. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307302] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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