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Leushukou AA, Krech AV, Hurski AL. Visible-Light-Promoted Nickel-Catalyzed Cross-Coupling of Alkyltitanium Alkoxides with Aryl and Alkenyl Halides. Org Lett 2022; 24:6277-6281. [PMID: 35997301 DOI: 10.1021/acs.orglett.2c02428] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
Abstract
Here, we report that alkyltitanium alkoxides generated in situ from Grignard reagents and Ti(OiPr)4 undergo a photocatalyst-free nickel-catalyzed cross-coupling with organic halides upon irradiation with blue light. Mechanistic studies suggested that the reaction proceeds through radical intermediates formed by photochemical decomposition of the alkyltitanium reagents. Various aryl, heteroaryl, and vinyl halides were efficiently alkylated under the reported conditions, including those containing ester and amide groups.
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Affiliation(s)
- Andrei A Leushukou
- Department of Chemistry, Belarusian State University, Niezaliežnasci 4, 220030 Minsk, Belarus
| | - Anastasiya V Krech
- National Academy of Sciences of Belarus, Kupreviča 5/2, 220141 Minsk, Belarus
| | - Alaksiej L Hurski
- Department of Chemistry, Belarusian State University, Niezaliežnasci 4, 220030 Minsk, Belarus.,Republican Scientific Center for Human Issues of Belarusian State University, Kurčatava 7, 220064 Minsk, Belarus
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2
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Ni J, Xia X, Zheng WF, Wang Z. Ti-Catalyzed Diastereoselective Cyclopropanation of Carboxylic Derivatives with Terminal Olefins. J Am Chem Soc 2022; 144:7889-7900. [PMID: 35442655 DOI: 10.1021/jacs.2c02360] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Cyclopropanols and cyclopropylamines not only serve as important structural motifs in medicinal chemistry but also show diverse reactivities in organic synthesis. Owing to the high ring strain energy, the development of a general protocol from stable and readily available starting materials to afford these cyclopropyl derivatives remains a compelling challenge. Herein, we describe that a Ti-based catalyst can effectively promote the diastereoselective syntheses of cyclopropanols and cyclopropylamines from widely accessible carboxylic derivatives (acids, esters, amides) with terminal olefins. To the best of our knowledge, this method represents the first example of direct converting alkyl carboxylic acids into cyclopropanols. Distinct from conventional studies in Ti-mediated cyclopropanations with reactive alkyl Grignard reagents as nucleophiles or reductants, this protocol utilizes Mg and Me2SiCl2 to turn over the Ti catalyst. Our method exhibits broad substrate scope with good functional group compatibility and is amenable to late-stage synthetic manipulations of natural products and biologically active molecules.
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Affiliation(s)
- Jiabin Ni
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, Zhejiang, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Xiaowen Xia
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, Zhejiang, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Wei-Feng Zheng
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, Zhejiang, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
| | - Zhaobin Wang
- Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, School of Science, Westlake University, Hangzhou 310024, Zhejiang, China.,Institute of Natural Sciences, Westlake Institute for Advanced Study, Hangzhou 310024, Zhejiang, China
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3
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Konik YA, Kananovich DG. Asymmetric synthesis with titanacyclopropane reagents: From early results to the recent achievements. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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4
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Manßen M, Schafer LL. Titanium catalysis for the synthesis of fine chemicals – development and trends. Chem Soc Rev 2020; 49:6947-6994. [DOI: 10.1039/d0cs00229a] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Atlas as a Titan(ium) is holding the earth-abundant chemistry world. Titanium is the second most abundant transition metal, is a key player in important industrial processes (e.g. polyethylene) and shows much promise for diverse applications in the future.
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Affiliation(s)
- Manfred Manßen
- The Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
| | - Laurel L. Schafer
- The Department of Chemistry
- The University of British Columbia
- Vancouver
- Canada
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5
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Affiliation(s)
- Philippe Bertus
- Institut des Molécules et Matériaux du Mans (IMMM), UMR 6283 CNRS, Le Mans Université, Avenue Olivier Messiaen, 72085 Le Mans Cedex 9, France
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6
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Sommer H, Weissbrod T, Marek I. A Tandem Iridium-Catalyzed "Chain-Walking"/Cope Rearrangement Sequence. ACS Catal 2019; 9:2400-2406. [PMID: 32953237 PMCID: PMC7493306 DOI: 10.1021/acscatal.9b00118] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Revised: 01/30/2019] [Indexed: 12/17/2022]
Abstract
An iridium-catalyzed tandem olefin migration/Cope rearrangement of alkenyl ω-ene cyclopropanes is reported. By this means, a variety of complex annulenes are obtained as single diastereomers starting from cyclopropyl ester derived from simple 1,ω-dienes and alkenyldiazo compounds. Long-range olefin migration over up to 10 positions could be realized and coupled with an efficient Cope rearrangement to yield valuable scaffolds. Various functional groups are well-tolerated, giving rise to densely functionalized products. Furthermore, the present methodology could be successfully extended to yield bicyclic cycloheptenones starting from readily available alkenyl cyclopropanols via a Kulinkovich reaction.
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Affiliation(s)
- Heiko Sommer
- Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Technion City, Haifa, 32000, Israel
| | - Tal Weissbrod
- Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Technion City, Haifa, 32000, Israel
| | - Ilan Marek
- Schulich Faculty of Chemistry, Technion—Israel Institute of Technology, Technion City, Haifa, 32000, Israel
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7
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Davis-Gilbert ZW, Tonks IA. Titanium redox catalysis: insights and applications of an earth-abundant base metal. Dalton Trans 2018; 46:11522-11528. [PMID: 28795719 DOI: 10.1039/c7dt02319g] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
π-Acid ancillary ligands, reactants, or products can stabilize reactive low valent Ti intermediates through backbonding, and present opportunities for the development of vast new classes of Ti-catalyzed redox reactions with practical applications.
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8
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Kulinkovich OG, Kananovich DG, Lopp M, Snieckus V. Insight into the Mechanism and Stereochemistry of the Transformations of Alkyltitanium Ate-Complexes. An Enhanced Enantioselectivity in the Cyclopropanation of the Carboxylic Esters with Titanacyclopropane Reagents. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201400480] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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9
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Konik YA, Kananovich DG, Kulinkovich OG. Enantioselective cyclopropanation of carboxylic esters with alkyl magnesium bromides in the presence of titanium(IV) (4R,5R)-TADDOLates. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.05.118] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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10
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Li W, Gao JJ, Lorenz JC, Xu J, Johnson J, Ma S, Lee H, Grinberg N, Busacca CA, Lu B, Senanayake CH. Process Development and Pilot-Plant Synthesis of (S)-tert-Butyl 1-Oxo-1-(1-(pyridin-2-yl)cyclopropylamino)propan-2-ylcarbamate: Studies on the Scale-Up of Kulinkovich–Szymoniak Cyclopropanation. Org Process Res Dev 2012. [DOI: 10.1021/op300059b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenjie Li
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
| | - Joe J. Gao
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
| | - Jon C. Lorenz
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
| | - Jinghua Xu
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
| | - Joe Johnson
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
| | - Shengli Ma
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
| | - Heewon Lee
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
| | - Nelu Grinberg
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
| | - Carl A. Busacca
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
| | - Bruce Lu
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
| | - Chris H. Senanayake
- Department of Chemical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road,
Ridgefield, Connecticut 06877, United States
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11
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Astashko DA, Tyvorskii VI. A convenient route to 2,6-dialkyl-2,3-dihydro-4H-pyran-4-ones via oxidative cleavage of protected 1-(2-oxoalkyl)-cyclopropanols. Synthesis of (±)-hepialone and its natural congener. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.07.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Muramatsu Y, Kanehira S, Tanigawa M, Miyawaki Y, Harada T. Catalytic Enantioselective Alkylation and Arylation of Aldehydes by Using Grignard Reagents. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2010. [DOI: 10.1246/bcsj.20090232] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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13
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Synthetic transformations mediated by the combination of titanium(IV) alkoxides and grignard reagents: selectivity issues and recent applications. Part 1: reactions of carbonyl derivatives and nitriles. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.10.050] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Diastereoselective Ti-mediated preparation of bicyclic aminocyclopropanes from N-alkenyl amides. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.07.031] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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15
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Jerome L, Sheppard TD, Aliev AE, Motherwell WB. Intramolecular amidocyclopropanation reactions using diethoxymethyl-functionalised lactams as organozinc carbenoid precursors. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.03.224] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Kananovich DG, Kulinkovich OG. Studies on the origin of cis-diastereoselectivity of the titanium-mediated cyclopropanation of carboxylic esters with Grignard reagents. Stereochemistry of the intramolecular cyclization of β-metalloketones. Tetrahedron 2008. [DOI: 10.1016/j.tet.2007.10.075] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Kulinkovich O, Isakov V, Kananovich D. Stereocontrolled alkylation of unsaturated compounds with alkoxytitanacyclopropane reagents. CHEM REC 2008; 8:269-78. [DOI: 10.1002/tcr.20155] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Kananovich DG, Hurski AL, Kulinkovich OG. A highly stereoselective transformation of carboxylic esters to trisubstituted olefins via cationic cyclopropyl–allyl rearrangement of sulfonates of cis-1,2-disubstituted cyclopropanols. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.09.172] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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