1
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Dutton KG, Jones TJ, Emge TJ, Lipke MC. Cage Match: Comparing the Anion Binding Ability of Isostructural Versus Isofunctional Pairs of Metal-Organic Nanocages. Chemistry 2024; 30:e202303013. [PMID: 37907394 DOI: 10.1002/chem.202303013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/25/2023] [Accepted: 10/31/2023] [Indexed: 11/02/2023]
Abstract
Affinities of six anions (mesylate, acetate, trifluoroacetate, p-toluenecarboxylate, p-toluenesulfonate, and perfluorooctanoate) for three related Pt2+ -linked porphyrin nanocages were measured to probe the influence of different noncovalent recognition motifs (e. g., hydrogen bonding, electrostatics, π bonding) on anion binding. Two new hosts of M6 L3 12+ (1b) and M4 L2 8+ (2) composition (M=(en)Pt2+ , L=(3-py)4 porphyrin) were prepared in a one-pot synthesis and allowed comparison of hosts that differ in structure while maintaining similar N-H hydrogen-bond donor ability. Comparisons of isostructural hosts that differ in hydrogen-bonding ability were made between 1b and a related M6 L3 12+ nanoprism (1a, M=(tmeda)Pt2+ ) that lacks N-H groups. Considerable variation in association constants (K1 =1.6×103 M-1 to 1.3×108 M-1 ) and binding mode (exo vs. endo) were found for different host-guest combinations. Strongest binding was seen between p-toluenecarboxylate and 1b, but surprisingly, association of this guest with 1a was only slightly weaker despite the absence of NH⋅⋅⋅O interactions. The high affinity between p-toluenecarboxylate and 1a could be turned off by protonation, and this behavior was used to toggle between the binding of this guest and the environmental pollutant perfluorooctanoate, which otherwise has a lower affinity for the host.
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Affiliation(s)
- Kaitlyn G Dutton
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
| | - Taro J Jones
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
| | - Thomas J Emge
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
| | - Mark C Lipke
- Department of Chemistry and Chemical Biology, Rutgers University - New Brunswick, 123 Bevier Road Piscataway, NJ, 08854, USA
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2
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Hatt JE, Shepich JH, Clemons MN, Bornowski EC, Wolfe JP. Palladium-Catalyzed Synthesis of 1-Alkylidene-2-dialkylaminomethyl Cyclobutane Derivatives via Pd-Catalyzed Alkene Difunctionalization Reactions: Influence of Nucleophile and Water on the Reaction Mechanism. Org Lett 2023; 25:3245-3248. [PMID: 37126729 PMCID: PMC10428518 DOI: 10.1021/acs.orglett.3c00954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The Pd-catalyzed coupling of 1,5-diene-2-yl triflates with amine nucleophiles affords exomethylenecyclobutanes bearing dialkylaminomethyl groups at C2. The strained carbocyclic products are obtained in moderate to excellent yields, with regioselectivities of up to >95:5 for four-membered ring formation. The mechanism of these reactions, which provides products resulting from anti-addition to alkenes, differs from related reactions involving malonate nucleophiles that provide syn-addition products.
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Affiliation(s)
- Jessica E. Hatt
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055
| | - James H. Shepich
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055
| | - Mackenzie N. Clemons
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055
| | - Evan C. Bornowski
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055
| | - John P. Wolfe
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan 48109-1055
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3
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Saladrigas M, Gómez-Bengoa E, Bonjoch J, Bradshaw B. Four-Step Synthesis of (-)-4-epi-Presilphiperfolan-8α-ol by Intramolecular Iron Hydride Atom Transfer-Mediated Ketone-Alkene Coupling and Studies to Access trans-Hydrindanols with a Botryane Scaffold. Chemistry 2023; 29:e202203286. [PMID: 36537992 DOI: 10.1002/chem.202203286] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/20/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
From an (R)-(+)-pulegone-derived building block that incorporates the stereo-defined tertiary carbon bearing a methyl group, as found in the targeted sesquiterpenoid, a four-step synthesis of (-)-4-epi-presilphiperfolan-8-α-ol was achieved. The key processes involved are a ring-closing metathesis leading to a bridged alkene-tethered ketone and its subsequent FeIII -mediated metal-hydride atom transfer (MHAT) transannular cyclization. This synthetic method, implying an irreversible addition of a carbon-centered radical upon a ketone by means of a hydrogen atom transfer upon the alkoxy radical intermediate, was also applied in the synthesis of trans-fused hydrindanols structurally related to botrydial compounds.
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Affiliation(s)
- Mar Saladrigas
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028, Barcelona, Spain
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I, Universidad del País Vasco, Manuel Lardizábal 3, 20018, San Sebastián, Spain
| | - Josep Bonjoch
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028, Barcelona, Spain
| | - Ben Bradshaw
- Laboratori de Química Orgànica, Facultat de Farmàcia, IBUB, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028, Barcelona, Spain
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4
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Qi L, Dong M, Qian J, Yu S, Tong X. Pd 0 -Catalyzed Asymmetric Carbonitratation Reaction Featuring an H-Bonding-Driven Alkyl-Pd II -ONO 2 Reductive Elimination. Angew Chem Int Ed Engl 2023; 62:e202215397. [PMID: 36420824 DOI: 10.1002/anie.202215397] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 11/11/2022] [Accepted: 11/23/2022] [Indexed: 11/27/2022]
Abstract
Reductive elimination of alkyl-PdII -O is a synthetically useful yet underdeveloped elementary reaction. Here we report that the combination of an H-bonding donor [PyH][BF4 ] and AgNO3 additive under toluene/H2 O biphasic system can enable such elementary step to form alkyl nitrate. This results in the Pd0 -catalyzed asymmetric carbonitratations of (Z)-1-iodo-1,6-dienes with (R)-BINAP as the chiral ligand, affording alkyl nitrates up to 96 % ee. Mechanistic studies disclose that the reaction consists of oxidative addition of Pd0 catalyst to vinyl iodide, anion ligand exchange between I- and NO3 - , alkene insertion and SN 2-type alkyl-PdII -ONO2 reductive elimination. Evidences suggest that H-bonding interaction of PyH⋅⋅⋅ONO2 can facilitate dissociation of O2 NO- ligand from the alkyl-PdII -ONO2 species, thus enabling the challenging alkyl-PdII -ONO2 reductive elimination to be feasible.
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Affiliation(s)
- Linjun Qi
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies, Taizhou University Jiaojiang, 318000, Zhejiang, China
| | - Ming Dong
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies, Taizhou University Jiaojiang, 318000, Zhejiang, China
| | - Jinlong Qian
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies, Taizhou University Jiaojiang, 318000, Zhejiang, China
| | - Shuling Yu
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies, Taizhou University Jiaojiang, 318000, Zhejiang, China
| | - Xiaofeng Tong
- School of Pharmaceutical and Chemical Engineering & Institute for Advanced Studies, Taizhou University Jiaojiang, 318000, Zhejiang, China
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5
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Bornowski EC, Shepich JH, Carpenter PM, White DR, Hatt JE, Wolfe JP. Regiodivergent Palladium-Catalyzed Alkene Difunctionalization Reactions for the Construction of Methylene Cyclobutanes and Methylene Cyclopentanes. Org Lett 2022; 24:8208-8212. [PMID: 36315977 PMCID: PMC9669241 DOI: 10.1021/acs.orglett.2c03308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Regiodivergent palladium-catalyzed alkene difunctionalization reactions between diethyl malonate and 1,5-dienes bearing a triflate group at C2 are described. Use of tris(2,4-di-tert-butylphenyl)phosphite as a ligand leads to 4-exo-cyclization/functionalization to afford malonate-substituted methylene cyclobutanes. In contrast, the 1,2-bis(diphenylphosphino)benzene ligand provides methylene cyclopentanes via 5-endo-cyclization/functionalization. The five-membered ring-forming reactions occur via anti-carbopalladation of the enolate nucleophile, whereas four-membered ring-forming reactions proceed through syn-4-exo-migratory insertion of the tethered alkene, followed by C(sp3)-C(sp3) bond-forming reductive elimination from an (alkyl)Pd(II)(malonate) complex.
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Affiliation(s)
- Evan C. Bornowski
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan, 48109-1055, United States
| | - James H. Shepich
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan, 48109-1055, United States
| | - Paige M. Carpenter
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan, 48109-1055, United States
| | - Derick R. White
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan, 48109-1055, United States
| | - Jessica E. Hatt
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan, 48109-1055, United States
| | - John P. Wolfe
- Department of Chemistry, University of Michigan, 930 North University Avenue, Ann Arbor, Michigan, 48109-1055, United States
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6
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Huang J, Yang J, Sun H, Feng K, Liao Q, Li B, Yan H, Guo X. A
Cost‐Effective D‐A‐D
Type
Hole‐Transport
Material Enabling 20% Efficiency Inverted Perovskite Solar Cells
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100022] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Jiachen Huang
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech) No. 1088, Xueyuan Road Shenzhen Guangdong 518055 China
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Hong Kong, China
| | - Jie Yang
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech) No. 1088, Xueyuan Road Shenzhen Guangdong 518055 China
| | - Huiliang Sun
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech) No. 1088, Xueyuan Road Shenzhen Guangdong 518055 China
| | - Kui Feng
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech) No. 1088, Xueyuan Road Shenzhen Guangdong 518055 China
| | - Qiaogan Liao
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech) No. 1088, Xueyuan Road Shenzhen Guangdong 518055 China
- School of Materials Science and Engineering, Harbin Institute of Technology Harbin Heilongjiang 150001 China
| | - Bolin Li
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech) No. 1088, Xueyuan Road Shenzhen Guangdong 518055 China
| | - He Yan
- Department of Chemistry, The Hong Kong University of Science and Technology Clear Water Bay Hong Kong, China
| | - Xugang Guo
- Department of Materials Science and Engineering, Southern University of Science and Technology (SUSTech) No. 1088, Xueyuan Road Shenzhen Guangdong 518055 China
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7
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Du J, Duan J, Yang X, Duan Y, Zhou Q, Tang Q. p-Type Charge Transfer Doping of Graphene Oxide with (NiCo) 1-y Fe y O x for Air-Stable, All-Inorganic CsPbIBr 2 Perovskite Solar Cells. Angew Chem Int Ed Engl 2021; 60:10608-10613. [PMID: 33599353 DOI: 10.1002/anie.202016703] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/31/2021] [Indexed: 12/21/2022]
Abstract
The precise regulation of interfacial charge distribution highly determines the power conversion efficiency of perovskite solar cells (PSCs). Herein, inorganic (NiCo)1-y Fey Ox nanoparticle decorated graphene oxide (GO) is successfully demonstrated as a hole booster for all-inorganic CsPbIBr2 PSC free of precious metal electrode. Arising from the spontaneous electron transfer induced p-type doping of GO from edged oxygen-containing functional groups to (NiCo)1-y Fey Ox , the best all-inorganic CsPbIBr2 PSC achieves an efficiency of 10.95 % under one standard sun owing to the eliminated paradox between charge extraction and charge localization in GO surface. Furthermore, the champion device exhibits an excellent long-term stability at 10 % relative humidity without encapsulation over 70 days because of the suppressed ions migration.
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Affiliation(s)
- Jian Du
- College of Information Science and Technology, Jinan University, Guangzhou, 510632, P. R. China
| | - Jialong Duan
- College of Information Science and Technology, Jinan University, Guangzhou, 510632, P. R. China
| | - Xiya Yang
- College of Information Science and Technology, Jinan University, Guangzhou, 510632, P. R. China
| | - Yanyan Duan
- State Centre for International Cooperation on Designer Low-Carbon and Environmental Material (SCICDLCEM), School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, P. R. China
| | - Quanzhu Zhou
- BTR New Material Group Co., Ltd., Shenzhen, China
| | - Qunwei Tang
- College of Information Science and Technology, Jinan University, Guangzhou, 510632, P. R. China
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8
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Du J, Duan J, Yang X, Duan Y, Zhou Q, Tang Q. p
‐Type Charge Transfer Doping of Graphene Oxide with (NiCo)
1−
y
Fe
y
O
x
for Air‐Stable, All‐Inorganic CsPbIBr
2
Perovskite Solar Cells. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202016703] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Jian Du
- College of Information Science and Technology Jinan University Guangzhou 510632 P. R. China
| | - Jialong Duan
- College of Information Science and Technology Jinan University Guangzhou 510632 P. R. China
| | - Xiya Yang
- College of Information Science and Technology Jinan University Guangzhou 510632 P. R. China
| | - Yanyan Duan
- State Centre for International Cooperation on Designer Low-Carbon and Environmental Material (SCICDLCEM) School of Materials Science and Engineering Zhengzhou University Zhengzhou 450001 P. R. China
| | | | - Qunwei Tang
- College of Information Science and Technology Jinan University Guangzhou 510632 P. R. China
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9
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Zhang W, Zhou ZX, Zhu XJ, Sun ZH, Dai WM, Li CC. Asymmetric Total Synthesis of the Highly Strained 4β-Acetoxyprobotryane-9β,15α-diol. J Am Chem Soc 2020; 142:19868-19873. [DOI: 10.1021/jacs.0c10116] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Wen Zhang
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Zi-Xiong Zhou
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xu-Jiang Zhu
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhang-Hua Sun
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
| | - Wei-Min Dai
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR, China
| | - Chuang-Chuang Li
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalytic Chemistry, Southern University of Science and Technology, Shenzhen 518055, China
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10
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Chi HM, Cole CJF, Hu P, Taylor CA, Snyder SA. Total syntheses of spiroviolene and spirograterpene A: a structural reassignment with biosynthetic implications. Chem Sci 2020; 11:10939-10944. [PMID: 34094343 PMCID: PMC8162393 DOI: 10.1039/d0sc04686h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 09/26/2020] [Indexed: 01/01/2023] Open
Abstract
The recent natural product isolates spiroviolene and spirograterpene A are two relatively non-functionalized linear triquinane terpenes with a large number of structural homologies. Nevertheless, three significant areas of structural disparity exist based on their original assignments, one of which implies a key stereochemical divergence early in their respective biosyntheses. Herein, using two known bicyclic ketone intermediates, a core Pd-catalyzed Heck cyclization sequence, and several chemoselective transformations, we describe concise total syntheses of both natural product targets and propose that the structure of spiroviolene should be reassigned. As a result, these natural products possess greater homology than previously anticipated.
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Affiliation(s)
- Hyung Min Chi
- Department of Chemistry, University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Charles J F Cole
- Department of Chemistry, University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Pengfei Hu
- Department of Chemistry, University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Cooper A Taylor
- Department of Chemistry, University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Scott A Snyder
- Department of Chemistry, University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
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11
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Peng C, Arya P, Zhou Z, Snyder SA. A Concise Total Synthesis of (+)-Waihoensene Guided by Quaternary Center Analysis. Angew Chem Int Ed Engl 2020; 59:13521-13525. [PMID: 32330370 PMCID: PMC7906115 DOI: 10.1002/anie.202004177] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Indexed: 11/07/2022]
Abstract
The four contiguous all-carbon quaternary centers of waihoensene, coupled with the absence of any traditional reactive functional groups other than a single alkene, render it a particularly challenging synthetic target among angular triquinane natural products. Here, we show that its polycyclic frame can be assembled concisely by using a strategically chosen quaternary center to guide the formation of the other three through judiciously selected C-C bond formation reactions. Those events, which included a unique Conia-ene cyclization and a challenging Pauson-Khand reaction, afforded a 17-step synthesis of the molecule in enantioenriched form.
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Affiliation(s)
- Cheng Peng
- Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, IL, 60637, USA
| | - Piyush Arya
- Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, IL, 60637, USA
| | - Zhiyao Zhou
- Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, IL, 60637, USA
| | - Scott A Snyder
- Department of Chemistry, University of Chicago, 5735 S. Ellis Avenue, Chicago, IL, 60637, USA
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12
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Peng C, Arya P, Zhou Z, Snyder SA. A Concise Total Synthesis of (+)‐Waihoensene Guided by Quaternary Center Analysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202004177] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Cheng Peng
- Department of Chemistry University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Piyush Arya
- Department of Chemistry University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Zhiyao Zhou
- Department of Chemistry University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
| | - Scott A. Snyder
- Department of Chemistry University of Chicago 5735 S. Ellis Avenue Chicago IL 60637 USA
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