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Indurmuddam RR, Huang PC, Hong BC, Chien SY. Visible-Light-Photocatalyzed Self-Cyclopropanation Reactions of Dibenzoylmethanes for the Synthesis of Cyclopropanes. Org Lett 2024; 26:5752-5757. [PMID: 38949643 DOI: 10.1021/acs.orglett.4c01875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
A new self-cyclopropanation of 1,3-diphenylpropane-1,3-dione, leading to tetrasubstituted cyclopropane containing three contiguous stereogenic centers with high stereoselectivity, has been achieved through violet-light-emitting diode-irradiated photocatalysis, featuring both cycloaddition and a distinctive rearrangement. Diverging from conventional cyclopropanation pathways, this reaction yields a tetrasubstituted cyclopropane through unprecedented rearrangement and cascade reactions.
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Affiliation(s)
| | - Pei-Chi Huang
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 621, Taiwan ROC
| | - Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi 621, Taiwan ROC
| | - Su-Ying Chien
- Instrumentation Center, National Taiwan University, Taipei 106, Taiwan ROC
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2
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Bestwick JS, Jones DJ, Jones HE, Kalomenopoulos PG, Szabla R, Lawrence AL. Total Synthesis and Prediction of Ulodione Natural Products Guided by DFT Calculations**. Angew Chem Int Ed Engl 2022; 61:e202207004. [PMID: 35670364 PMCID: PMC9401604 DOI: 10.1002/anie.202207004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Indexed: 11/11/2022]
Abstract
A biomimetic synthetic strategy has resulted in a two‐step total synthesis of (±)‐ulodione A and the prediction of two potential natural products, (±)‐ulodiones C and D. This work was guided by computational investigations into the selectivity of a proposed biosynthetic Diels–Alder dimerization, which was then utilized in the chemical synthesis. This work highlights how biosynthetic considerations can both guide the design of efficient synthetic strategies and lead to the anticipation of new natural products.
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Affiliation(s)
- Jacob S. Bestwick
- EaStCHEM School of Chemistry University of Edinburgh Joseph Black Building David Brewster Road Edinburgh EH9 3FJ UK
| | - David J. Jones
- EaStCHEM School of Chemistry University of Edinburgh Joseph Black Building David Brewster Road Edinburgh EH9 3FJ UK
| | - Helen E. Jones
- EaStCHEM School of Chemistry University of Edinburgh Joseph Black Building David Brewster Road Edinburgh EH9 3FJ UK
- Current address: Oncology R&D AstraZeneca Cambridge CB4 0WG UK
| | - Panagiotis G. Kalomenopoulos
- EaStCHEM School of Chemistry University of Edinburgh Joseph Black Building David Brewster Road Edinburgh EH9 3FJ UK
- Current address: Process Chemistry Pharmaron Hoddesdon EN11 9FH UK
| | - Rafal Szabla
- Department of Physical and Quantum Chemistry Faculty of Chemistry Wrocław University of Science and Technology Wrocław Poland
| | - Andrew L. Lawrence
- EaStCHEM School of Chemistry University of Edinburgh Joseph Black Building David Brewster Road Edinburgh EH9 3FJ UK
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3
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Bestwick JS, Jones DJ, Jones HE, Kalomenopoulos PG, Szabla R, Lawrence AL. Total Synthesis and Prediction of Ulodione Natural Products Guided by DFT Calculations. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202207004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jacob S. Bestwick
- The University of Edinburgh EaStCHEM School of Chemistry UNITED KINGDOM
| | - David J. Jones
- The University of Edinburgh EaStCHEM School of Chemistry UNITED KINGDOM
| | - Helen E. Jones
- The University of Edinburgh EaStCHEM School of Chemistry UNITED KINGDOM
| | | | - Rafal Szabla
- Wroclaw University of Science and Technology: Politechnika Wroclawska Department of Physical and Quantum Chemistry POLAND
| | - Andrew Leslie Lawrence
- University of Edinburgh EaStCHEM School of Chemistry Joseph Black BuildingDavid Brewster Road EH9 3FJ Edinburgh UNITED KINGDOM
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4
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Tao J, Li C, Zhou K, Huan Y, Yuan Y, Liu A, Zhang F, Qi C, Shen Z. An Efficient Strategy for Synthesis of New Functionalized Furo[3,2‐
c
]pyridin‐4(
5
H
)‐one Derivatives under Mild Conditions. J Heterocycl Chem 2022. [DOI: 10.1002/jhet.4502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jiahao Tao
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Chunmei Li
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
- College of Chemical Engineering Zhejiang University of Technology Hangzhou China
| | - Kaini Zhou
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Yongcan Huan
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Yongjie Yuan
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Ali Liu
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Furen Zhang
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Chenze Qi
- School of Chemistry and Chemical Engineering, Zhejiang Key Laboratory of Alternative Technologies for Fine Chemicals Process Shaoxing University Shaoxing Zhejiang Province China
| | - Zhenlu Shen
- College of Chemical Engineering Zhejiang University of Technology Hangzhou China
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5
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Lo CL, Akula PS, Hong BC, Lee GH, Chien SY. Total Synthesis of Ulodione A via a Double-Alkylation and DABCO Promoted Ring-Expansion Rearrangement Sequence. Org Lett 2022; 24:3353-3357. [DOI: 10.1021/acs.orglett.2c01038] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Chang-Lun Lo
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Pavan Sudheer Akula
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Gene-Hsiang Lee
- Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Su-Ying Chien
- Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
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6
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He C, Tang X, He X, Zhou Y, Liu X, Feng X. Regio- and enantioselective conjugate addition of β-nitro α,β-unsaturated carbonyls to construct 3-alkenyl disubstituted oxindoles. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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7
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Ma Z, Liu Z, Wang C, Chen X, Tao J, Lv Q. A novel isosteviol-based bifunctional squaramide organocatalyst for enantioselective Michael addition of acetylacetone to nitroolefins. Chirality 2021; 34:77-85. [PMID: 34747045 DOI: 10.1002/chir.23391] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Revised: 10/20/2021] [Accepted: 10/23/2021] [Indexed: 11/09/2022]
Abstract
Chiral amine-squaramide is a kind of effective hydrogen bond donor bifunctional catalyst to promote many asymmetric transformations. In this paper, novel chiral tertiary amine-squaramide derived from the natural product of the stevioside was developed and applied into the asymmetric Michael addition of acetylacetone to nitroolefins. This asymmetric reaction performed well, and a series of enantiomerically enriched compounds were obtained in high yields (up to 96%) with excellent enantioselectivities (up to 99% ee).
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Affiliation(s)
- Zhiwei Ma
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Zhijing Liu
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Chuanchuan Wang
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Xiaopei Chen
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou, China
| | - Jingchao Tao
- College of Chemistry, Zhengzhou University, Zhengzhou, China
| | - Quanjian Lv
- Faculty of Science, Henan University of Animal Husbandry and Economy, Zhengzhou, China
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8
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Akula PS, Wang YJ, Hong BC, Lee GH, Chien SY. Control of the Organocatalytic Enantioselective α-Alkylation of Vinylogous Carbonyl Enolates for the Synthesis of Tetrahydropyran Derivatives and Beyond. Org Lett 2021; 23:4688-4693. [PMID: 34048266 DOI: 10.1021/acs.orglett.1c01426] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The organocatalytic α-alkylation of vinylogous carbonyl compounds to hydroxynitroolefins for the synthesis of hemiacetals was realized with excellent enantioselectivities and in high yields. High diastereoselectivity (up to >20:1) has been accomplished with the addition of Et3N. The α- and γ-alkylation of vinylogous ketone against nitroolefins displayed high but opposite facial selectivities. Transformation of the hemiacetal products to other polycyclic compounds, including the euroticin B analog, has been demonstrated.
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Affiliation(s)
- Pavan Sudheer Akula
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Yung-Ju Wang
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C
| | - Gene-Hsiang Lee
- Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Su-Ying Chien
- Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
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