1
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Hui C, Craggs L, Antonchick AP. Ring contraction in synthesis of functionalized carbocycles. Chem Soc Rev 2022; 51:8652-8675. [PMID: 36172989 DOI: 10.1039/d1cs01080h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbocycles are a key and widely present structural motif in organic compounds. The construction of structurally intriguing carbocycles, such as highly-strained fused rings, spirocycles or highly-functionalized carbocycles with congested stereocenters, remains challenging in organic chemistry. Cyclopropanes, cyclobutanes and cyclopentanes within such carbocycles can be synthesized through ring contraction. These ring contractions involve re-arrangement of and/or small molecule extrusion from a parental ring, which is either a carbocycle or a heterocycle of larger size. This review provides an overview of synthetic methods for ring contractions to form cyclopropanes, cyclobutanes and cyclopentanes en route to structurally intriguing carbocycles.
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Affiliation(s)
- Chunngai Hui
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany. .,Technical University Dortmund, Faculty of Chemistry and Chemical Biology, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany
| | - Luke Craggs
- Nottingham Trent University, School of Science and Technology, Department of Chemistry and Forensics, Clifton Lane, NG11 8NS Nottingham, UK
| | - Andrey P Antonchick
- Max Planck Institute of Molecular Physiology, Department of Chemical Biology, Otto-Hahn-Strasse 11, 44227 Dortmund, Germany. .,Technical University Dortmund, Faculty of Chemistry and Chemical Biology, Otto-Hahn-Strasse 6, 44221 Dortmund, Germany.,Nottingham Trent University, School of Science and Technology, Department of Chemistry and Forensics, Clifton Lane, NG11 8NS Nottingham, UK
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2
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Aher RD, Ishikawa A, Yamanaka M, Tanaka F. Catalytic Enantioselective Construction of Decalin Derivatives by Dynamic Kinetic Desymmetrization of C2-Symmetric Derivatives through Aldol-Aldol Annulation. J Org Chem 2022; 87:8151-8157. [PMID: 35666096 DOI: 10.1021/acs.joc.2c00889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We have developed and investigated a catalytic desymmetrization reaction strategy that affords functionalized decalin derivatives with high enantioselectivities from C2-symmetric derivatives through aldol-aldol annulation. We identified the structural moieties of the catalyst necessary for the formation of the decalin derivative with high enantioselectivity. We elucidated the mechanisms of the catalyzed reactions: the first aldol reaction step was reversible, and the second aldol step was rate-limiting and stereochemistry-determining and was enantioselective. Using theoretical calculations guided by the experimental results, we identified the interactions between the catalyst and the transition state that led to the major enantiomer. The information obtained in this study will be useful for the development of catalysts and chemical transformations.
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Affiliation(s)
- Ravindra D Aher
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Atsuhiro Ishikawa
- Department of Chemistry, Rikkyo University, 3-34-1 Nish-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Masahiro Yamanaka
- Department of Chemistry, Rikkyo University, 3-34-1 Nish-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan
| | - Fujie Tanaka
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
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3
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Wu Y, Hu C, Wang T, Eberle L, Hashmi ASK. Gold‐Catalyzed Reaction of Anthranils with Alkynyl Sulfones for the Regioselective Formation of 3‐Hydroxyquinolines. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101469] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yufeng Wu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery School of Pharmaceutical Sciences Sun Yat-sen University Guangzhou Guangdong 510006 People's Republic of China
| | - Chao Hu
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Tao Wang
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Lukas Eberle
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of Science King Abdulaziz University (KAU) 21589 Jeddah Saudi Arabia
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4
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Kinetic Resolution in Transannular Morita-Baylis-Hillman Reaction: An Approximation to the Synthesis of Sesquiterpenes from Guaiane Family. Catalysts 2022. [DOI: 10.3390/catal12010067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
An approximation to the synthesis of several sesquiterpenes from the Guaiane family is described in which the core structure was obtained through a transannular Morita-Baylis-Hillman reaction performed under kinetic resolution. Several manipulations of the obtained MBH adduct have been carried out directed towards the total synthesis of γ-Gurjunene, to the formal synthesis of Clavukerin A, to the synthesis of a non-natural isomer of isoguaiane and to the synthesis of an advanced intermediate in the total synthesis of Palustrol.
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5
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Abstract
Periconia is filamentous fungi belonging to the Periconiaceae family, and over the last 50 years, the genus has shown interest in natural product exploration for pharmacological purposes. Therefore, this study aims to analyze the different species of Periconia containing natural products such as terpenoids, polyketides, cytochalasan, macrosphelides, cyclopentenes, aromatic compounds, and carbohydrates carbasugar derivates. The isolated compound of this kind, which was reported in 1969, consisted of polyketide derivatives and their structures and was determined by chemical reaction and spectroscopic methods. After some years, 77 compounds isolated from endophytic fungus Periconia were associated with eight plant species, 28 compounds from sea hare Aplysia kurodai, and ten from endolichenic fungi Parmelia sp. The potent pharmacological agents from this genus are periconicin A, which acts as an antimicrobial, pericochlorosin B as an anti-human immunodeficiency virus (HIV), peribysin D, and pericosine A as cytotoxic agents, and periconianone A as an anti-inflammatory agent. Furthermore, information about taxol and piperine from Periconia producing species was also provided. Therefore, this study supports discovering new drugs produced by the Periconia species and compares them for future drug development.
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6
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Wu J, Liu J, Fan J, Xie Z, Qin H, Li C. Evolution of Routes for Asymmetric Total Synthesis of Cyclocitrinol Enabled by Type
II
[5+2] Cycloaddition
†. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000698] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jianlei Wu
- Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
| | - Junyang Liu
- Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Jian‐Hong Fan
- Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
| | - Zhi‐Dong Xie
- Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
- Academy for Advanced Interdisciplinary Studies, Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Hukun Qin
- Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
| | - Chuang‐Chuang Li
- Shenzhen Key Laboratory of Small Molecule Drug Discovery and Synthesis, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen Guangdong 518055 China
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7
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Zhu Q, Luo Y, Guo Y, Zhang Y, Tao Y. Saegusa Oxidation of Enol Ethers at Extremely Low Pd-Catalyst Loadings under Ligand-free and Aqueous Conditions: Insight into the Pd(II)/Cu(II)-Catalyst System. J Org Chem 2021; 86:5463-5476. [PMID: 33765382 DOI: 10.1021/acs.joc.0c02987] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A highly efficient and practical Pd(II)/Cu(OAc)2-catalyst system of Saegusa oxidation, which converts enol ethers to the corresponding enals with a number of diverse substrates at extremely low catalyst loadings (500 mol ppm) under ligand-free and aqueous conditions, is described. Its synthetic utility was demonstrated by large-scale applications of the catalyst system to important nature molecules. This work allows Saegusa oxidation to become a highly practical approach to preparing enals and also suggests new insight into the Pd(II)/Cu(II)-catalyst system for dehydrogenation of carbonyl compounds and decreasing Pd-catalyst loadings.
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Affiliation(s)
- Quan Zhu
- Kunming Biohome Technology Co. Limited, Kunming 650501, PR China
| | - Yunsong Luo
- Kunming Biohome Technology Co. Limited, Kunming 650501, PR China
| | - Yongyan Guo
- Kunming Biohome Technology Co. Limited, Kunming 650501, PR China
| | - Yushun Zhang
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China
| | - Yunhai Tao
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, PR China.,Kunming Biohome Technology Co. Limited, Kunming 650501, PR China
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8
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Krishna Y, Tanaka F. Intramolecular Formal [4 + 2] Cycloadditions: Synthesis of Spiro Isoindolinone Derivatives and Related Molecules. Org Lett 2021; 23:1874-1879. [PMID: 33601884 DOI: 10.1021/acs.orglett.1c00283] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Acid-catalyzed intramolecular reactions of isoindolinone-derived hydroxylactam derivatives bearing enones or enals that afford spiro isoindolinone derivatives and related molecules have been developed. From the hydroxylactam moieties, N-acylenamides were generated in situ and reacted with the enone and the enal moieties via formal [4 + 2] cycloaddition reactions to construct cyclohexanone- and dihydropyran-fused ring systems and the spiro ring systems.
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Affiliation(s)
- Yarkali Krishna
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
| | - Fujie Tanaka
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa 904-0495, Japan
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9
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Athawale PR, Kalmode HP, Motiwala Z, Kulkarni KA, Reddy DS. Overturning the Peribysin Family Natural Products Isolated from Periconia byssoides OUPS-N133: Synthesis and Stereochemical Revision of Peribysins A, B, C, F, and G. Org Lett 2020; 22:3104-3109. [DOI: 10.1021/acs.orglett.0c00857] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Paresh R. Athawale
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Hanuman P. Kalmode
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Zenia Motiwala
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Kiran A. Kulkarni
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
- Biochemical Sciences Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - D. Srinivasa Reddy
- Organic Chemistry Division, CSIR-National Chemical Laboratory, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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10
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Smaligo AJ, Swain M, Quintana JC, Tan MF, Kim DA, Kwon O. Hydrodealkenylative C(sp 3)-C(sp 2) bond fragmentation. Science 2019; 364:681-685. [PMID: 31097667 DOI: 10.1126/science.aaw4212] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 03/14/2019] [Indexed: 12/19/2022]
Abstract
Chemical synthesis typically relies on reactions that generate complexity through elaboration of simple starting materials. Less common are deconstructive strategies toward complexity-particularly those involving carbon-carbon bond scission. Here, we introduce one such transformation: the hydrodealkenylative cleavage of C(sp3)-C(sp2) bonds, conducted below room temperature, using ozone, an iron salt, and a hydrogen atom donor. These reactions are performed in nonanhydrous solvents and open to the air; reach completion within 30 minutes; and deliver their products in high yields, even on decagram scales. We have used this broadly functionality tolerant transformation to produce desirable synthetic intermediates, many of which are optically active, from abundantly available terpenes and terpenoid-derived precursors. We have also applied it in the formal total syntheses of complex molecules.
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Affiliation(s)
- Andrew J Smaligo
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Manisha Swain
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Jason C Quintana
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Mikayla F Tan
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Danielle A Kim
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Ohyun Kwon
- Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA.
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11
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Cis/Trans Energetics in Epoxide, Thiirane, Aziridine and Phosphirane Containing Cyclopentanols: Effects of Intramolecular OH⋯O, S, N and P Contacts. Molecules 2019; 24:molecules24142523. [PMID: 31295845 PMCID: PMC6680949 DOI: 10.3390/molecules24142523] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 06/24/2019] [Accepted: 07/03/2019] [Indexed: 02/01/2023] Open
Abstract
A recent computational analysis of the stabilizing intramolecular OH⋯O contact in 1,2-dialkyl-2,3-epoxycyclopentanol diastereomers has been extended to thiiriane, aziridine and phosphirane analogues. Density functional theory (DFT), second-order Møller-Plesset perturbation theory (MP2) and CCSD(T) coupled-cluster computations with simple methyl and ethyl substituents indicate that electronic energies of the cis isomers are lowered by roughly 3 to 4 kcal mol−1 when the OH group of these cyclopentanol systems forms an intramolecular contact with the O, S, N or P atom on the adjacent carbon. The results also suggest that S and P can participate in these stabilizing intramolecular interactions as effectively as O and N in constrained molecular environments. The stabilizing intramolecular OH⋯O, OH⋯S, OH⋯N and OH⋯P contacts also increase the covalent OH bond length and significantly decrease the OH stretching vibrational frequency in every system with shifts typically on the order of −41 cm−1.
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12
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Rao P, Hu J, Xuan J, Ding H. Total Synthesis of (−)-Pavidolide B: A Ring Contraction Strategy. J Org Chem 2019; 84:9385-9392. [DOI: 10.1021/acs.joc.9b01308] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Peirong Rao
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Jialei Hu
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Jun Xuan
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310058, China
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13
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Inose K, Tanaka K, Yamada T, Koshino H, Hashimoto M. Isolation of Peribysins O, P, and Q from Periconia macrospinosa KT3863 and Configurational Reinvestigation of Peribysin E Diacetate from Periconia byssoides OUPS-N133. JOURNAL OF NATURAL PRODUCTS 2019; 82:911-918. [PMID: 30767529 DOI: 10.1021/acs.jnatprod.8b01001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Peribysins O (1), P (3), and Q (4) were isolated from Periconia macrospinosa KT3863. The relative configuration of the 6,7-epoxide of 1 was elucidated by performing quantitative NOE experiments. The structure of 2, which is a tautomer of 1 present in CDCl3 solutions in 5% abundance, was also fully characterized by NMR analysis. Their absolute configurations were independently determined by the modified Mosher's method (for 1 and 3), the electronic circular dichroism (ECD) exciton coupling theory after conversion into dibenzoate 9 (for 3), and theoretical ECD calculations (for 1, 3, and 4). The obtained relative structures 1, 3, and 4 were verified by calculating their 13C chemical shifts using density functional theory (DFT). Although the established (4 S)-enantiomer for 1-4 is in accordance with that of other peribysins isolated from the related fungus Periconia byssoides OUPS-N133, Danishefsky's total synthesis of peribysin E (5) led to the subsequent revision of the (2 R,4 S,5 R,6 S,7 S,8 R,10 S)-enantiomer to the (2 S,4 R,5 S,6 R,7 R,8 S,10 R)-enantiomer. This discordance led us to reinvestigate the configuration using time-dependent DFT-based ECD spectral calculations, which supported the original (4 S)-enantiomer.
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Affiliation(s)
- Kota Inose
- Faculty of Agriculture and Life Science , Hirosaki University , 3-Bunkyo-cho , Hirosaki , 036-8561 , Japan
| | - Kazuaki Tanaka
- Faculty of Agriculture and Life Science , Hirosaki University , 3-Bunkyo-cho , Hirosaki , 036-8561 , Japan
| | - Takeshi Yamada
- Osaka University of Pharmaceutical Sciences , 4-20-1, Nasahara , Takatsuki, Osaka , 569-1094 , Japan
| | - Hiroyuki Koshino
- RIKEN Center for Sustainable Resource Science , Wako , 351-0198 , Japan
| | - Masaru Hashimoto
- Faculty of Agriculture and Life Science , Hirosaki University , 3-Bunkyo-cho , Hirosaki , 036-8561 , Japan
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14
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Guo R, Mo X, Zhang G. Synthesis of 2-(2-Oxo-2-phenylethyl)cyclopentanone by Rhodium-Catalyzed Tandem Alkynyl Cyclobutanols Hydroacylation and Semipinacol Rearrangement. Org Lett 2019; 21:1263-1267. [PMID: 30753082 DOI: 10.1021/acs.orglett.8b03973] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A rhodium-catalyzed tandem reaction of alkynyl cyclobutanols with salicylaldehydes has been developed. The reaction offers a new and atom-economical approach for the selective preparation of multisubstituted 2-(2-oxo-2-phenylethyl)cyclopentanone in high yields under mild reaction conditions with tolerance of a broad range of substituted alkynyl cyclobutanols and salicylaldehyes. The isolation of intermediate suggests that the reaction proceeds through a sequential process of intermolecular hydroacylation and semipinacol rearrangement.
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Affiliation(s)
- Rui Guo
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road , Shanghai 200032 , P. R. China
| | - Xueling Mo
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road , Shanghai 200032 , P. R. China
| | - Guozhu Zhang
- State Key Laboratory of Organometallic Chemistry , Shanghai Institute of Organic Chemistry , Center for Excellence in Molecular Synthesis, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road , Shanghai 200032 , P. R. China
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15
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Zhang XM, Tu YQ, Zhang FM, Chen ZH, Wang SH. Recent applications of the 1,2-carbon atom migration strategy in complex natural product total synthesis. Chem Soc Rev 2018; 46:2272-2305. [PMID: 28349159 DOI: 10.1039/c6cs00935b] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
1,2-Carbon atom rearrangement has been broadly applied as a guiding strategy in complex molecule assembly. As it entails the carbon-carbon or carbon-heteroatom bond migration between two vicinal atoms, this type of reaction is capable of generating structural complexity through a molecular skeletal reorganization. This review will focus on recent employment of this strategy in the total synthesis of natural products, highlighting the exceptional utility of such synthetic methodologies in the construction of intricate carbocycles, heterocycles or structurally complex motifs from synthetically more accessible precursors.
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Affiliation(s)
- Xiao-Ming Zhang
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China.
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16
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Kalmode HP, Handore KL, Rajput R, Shaikh SR, Gonnade RG, Kulkarni KA, Reddy DS. Total Synthesis and Biological Evaluation of Cell Adhesion Inhibitors Peribysin A and B: Structural Revision of Peribysin B. Org Lett 2018; 20:7003-7006. [DOI: 10.1021/acs.orglett.8b02838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
| | - Kishor L. Handore
- Academy of Scientific and Innovative Research (AcSIR), 110025 New Delhi, India
| | - Raveena Rajput
- Academy of Scientific and Innovative Research (AcSIR), 110025 New Delhi, India
| | - Samir R. Shaikh
- Academy of Scientific and Innovative Research (AcSIR), 110025 New Delhi, India
| | - Rajesh G. Gonnade
- Academy of Scientific and Innovative Research (AcSIR), 110025 New Delhi, India
| | - Kiran A. Kulkarni
- Academy of Scientific and Innovative Research (AcSIR), 110025 New Delhi, India
| | - D. Srinivasa Reddy
- Academy of Scientific and Innovative Research (AcSIR), 110025 New Delhi, India
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17
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Chouthaiwale PV, Aher RD, Tanaka F. Catalytic Enantioselective Formal (4+2) Cycloaddition by Aldol-Aldol Annulation of Pyruvate Derivatives with Cyclohexane-1,3-Diones to Afford Functionalized Decalins. Angew Chem Int Ed Engl 2018; 57:13298-13301. [PMID: 30125444 DOI: 10.1002/anie.201808219] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Indexed: 01/12/2023]
Abstract
The decalin structure is found in bioactive molecules. We have developed catalytic enantioselective formal (4+2) cycloaddition reactions via aldol-aldol cascade reactions between pyruvate-derived diketoester derivatives and cyclohexane-1,3-dione derivatives that afford highly functionalized decalin derivatives. The reactions were performed using a quinidine-derived catalyst under mild conditions. Decalin derivatives bearing up to six chiral carbon centers including tetrasubstituted carbon centers were synthesized with high diastereo- and enantioselectivities. Five to six stereogenic centers were generated from achiral molecules with the formation of two C-C bonds in a single transformation resulting in the formation of the decalin system.
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Affiliation(s)
- Pandurang V Chouthaiwale
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa, 904-0495, Japan
| | - Ravindra D Aher
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa, 904-0495, Japan
| | - Fujie Tanaka
- Chemistry and Chemical Bioengineering Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna, Okinawa, 904-0495, Japan
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18
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Chouthaiwale PV, Aher RD, Tanaka F. Catalytic Enantioselective Formal (4+2) Cycloaddition by Aldol–Aldol Annulation of Pyruvate Derivatives with Cyclohexane‐1,3‐Diones to Afford Functionalized Decalins. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808219] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Pandurang V. Chouthaiwale
- Chemistry and Chemical Bioengineering UnitOkinawa Institute of Science and Technology Graduate University 1919-1 Tancha Onna Okinawa 904-0495 Japan
| | - Ravindra D. Aher
- Chemistry and Chemical Bioengineering UnitOkinawa Institute of Science and Technology Graduate University 1919-1 Tancha Onna Okinawa 904-0495 Japan
| | - Fujie Tanaka
- Chemistry and Chemical Bioengineering UnitOkinawa Institute of Science and Technology Graduate University 1919-1 Tancha Onna Okinawa 904-0495 Japan
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19
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Xuan J, Zhu A, Ma B, Ding H. Diastereoselective Synthesis of the Hydroperoxide-Keto Form of (±)-Steenkrotin B. Org Lett 2018; 20:4153-4156. [PMID: 29947520 DOI: 10.1021/acs.orglett.8b01875] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A diastereoselective approach for the synthesis of the hydroperoxide-keto form of (±)-steenkrotin B (2') is described. The key features of the strategy involve a Diels-Alder cycloaddition, a titanium(III)-catalyzed reductive annulation, and a regio- and diastereoselective hydroperoxidation.
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Affiliation(s)
- Jun Xuan
- Department of Chemistry , Zhejiang University , Hangzhou 310058 , P. R. China
| | - An Zhu
- Department of Chemistry , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Binjie Ma
- Department of Chemistry , Zhejiang University , Hangzhou 310058 , P. R. China
| | - Hanfeng Ding
- Department of Chemistry , Zhejiang University , Hangzhou 310058 , P. R. China
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20
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Liu J, Wu J, Fan JH, Yan X, Mei G, Li CC. Asymmetric Total Synthesis of Cyclocitrinol. J Am Chem Soc 2018; 140:5365-5369. [PMID: 29617567 DOI: 10.1021/jacs.8b02629] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The first and asymmetric total synthesis of cyclocitrinol, an unusual C25 steroid, has been accomplished in a linear sequence of 18 steps from commercially available compound 11. The synthetically challenging bicyclo[4.4.1] A/B ring system with a strained bridgehead (anti-Bredt) double bond of cyclocitrinol was constructed efficiently and diastereoselectively via a type II intramolecular [5 + 2] cycloaddition.
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Affiliation(s)
- Junyang Liu
- Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Jianlei Wu
- Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Jian-Hong Fan
- Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Xin Yan
- Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Guangjian Mei
- Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Chuang-Chuang Li
- Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
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21
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Taheri Kal Koshvandi A, Heravi MM, Momeni T. Current Applications of Suzuki–Miyaura Coupling Reaction in The Total Synthesis of Natural Products: An update. Appl Organomet Chem 2018. [DOI: 10.10.1002/aoc.4210] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Tayebeh Momeni
- Department of ChemistryAlzahra University Vanak Tehran Iran
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22
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Taheri Kal Koshvandi A, Heravi MM, Momeni T. Current Applications of Suzuki–Miyaura Coupling Reaction in The Total Synthesis of Natural Products: An update. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4210] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
| | | | - Tayebeh Momeni
- Department of ChemistryAlzahra University Vanak Tehran Iran
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23
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Brill ZG, Condakes ML, Ting CP, Maimone TJ. Navigating the Chiral Pool in the Total Synthesis of Complex Terpene Natural Products. Chem Rev 2017; 117:11753-11795. [PMID: 28293944 PMCID: PMC5638449 DOI: 10.1021/acs.chemrev.6b00834] [Citation(s) in RCA: 186] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The pool of abundant chiral terpene building blocks (i.e., "chiral pool terpenes") has long served as a starting point for the chemical synthesis of complex natural products, including many terpenes themselves. As inexpensive and versatile starting materials, such compounds continue to influence modern synthetic chemistry. This review highlights 21st century terpene total syntheses which themselves use small, terpene-derived materials as building blocks. An outlook to the future of research in this area is highlighted as well.
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Affiliation(s)
- Zachary G. Brill
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
| | - Matthew L. Condakes
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
| | - Chi P. Ting
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
| | - Thomas J. Maimone
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720
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24
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Lukamto DH, Gaunt MJ. Enantioselective Copper-Catalyzed Arylation-Driven Semipinacol Rearrangement of Tertiary Allylic Alcohols with Diaryliodonium Salts. J Am Chem Soc 2017. [DOI: 10.1021/jacs.7b05340] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Daniel H. Lukamto
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
| | - Matthew J. Gaunt
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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25
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Xuan J, Liu Z, Zhu A, Rao P, Yu L, Ding H. Diastereoselective Total Synthesis of the Euphorbia
Diterpenoid Pepluanol A: A Reductive Annulation Approach. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201704929] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Jun Xuan
- Department of Chemistry; Zhejiang University; Hangzhou 310058 China
| | - Zhaobo Liu
- Department of Chemistry; Zhejiang University; Hangzhou 310058 China
| | - An Zhu
- Department of Chemistry; Zhejiang University; Hangzhou 310058 China
| | - Peirong Rao
- Department of Chemistry; Zhejiang University; Hangzhou 310058 China
| | - Lei Yu
- School of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Hanfeng Ding
- Department of Chemistry; Zhejiang University; Hangzhou 310058 China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 China
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26
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Xuan J, Liu Z, Zhu A, Rao P, Yu L, Ding H. Diastereoselective Total Synthesis of the Euphorbia
Diterpenoid Pepluanol A: A Reductive Annulation Approach. Angew Chem Int Ed Engl 2017; 56:8898-8901. [DOI: 10.1002/anie.201704929] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 06/01/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Jun Xuan
- Department of Chemistry; Zhejiang University; Hangzhou 310058 China
| | - Zhaobo Liu
- Department of Chemistry; Zhejiang University; Hangzhou 310058 China
| | - An Zhu
- Department of Chemistry; Zhejiang University; Hangzhou 310058 China
| | - Peirong Rao
- Department of Chemistry; Zhejiang University; Hangzhou 310058 China
| | - Lei Yu
- School of Chemistry and Chemical Engineering; Yangzhou University; Yangzhou 225002 China
| | - Hanfeng Ding
- Department of Chemistry; Zhejiang University; Hangzhou 310058 China
- State Key Laboratory of Elemento-Organic Chemistry; Nankai University; Tianjin 300071 China
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27
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Abstract
The total synthesis of huperzine Q was accomplished. The synthesis features the construction of the cis-hydrindane skeleton via a Diels-Alder reaction and a ring contraction reaction of an epoxyketone.
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Affiliation(s)
- Shun Tanimura
- Graduate School of Pharmaceutical Sciences, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan.,Graduate School of Pharmaceutical Sciences, University of Tokyo , 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Satoshi Yokoshima
- Graduate School of Pharmaceutical Sciences, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
| | - Tohru Fukuyama
- Graduate School of Pharmaceutical Sciences, Nagoya University , Furo-cho, Chikusa-ku, Nagoya, 464-8601, Japan
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28
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Camps P, Gómez T, Otermin A, Font-Bardia M. Alternative Access to Functionalized 2,8-Ethanonoradamantane Derivatives. Molecules 2017; 22:molecules22060906. [PMID: 28561800 PMCID: PMC6152640 DOI: 10.3390/molecules22060906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Revised: 05/24/2017] [Accepted: 05/25/2017] [Indexed: 11/16/2022] Open
Abstract
7a-(Methoxycarbonyl)-N-methyl-1,3a,5,6,7,7a-hexahydro-4H-1,4,6-(epiethane[1,1,2]triyl)indene-4,9-dicarboximide has been prepared through a modification of a previous synthetic sequence, in which the benzyloxymethyl hydroxyl protecting group has been replaced by methoxymethyl, to avoid the apparent formation of a benzyl ester derivative as a side product. The overall yield of the new synthetic sequence is comparable to the previous one. Two advantages of the new procedure are: (a) no benzyl ester was formed and (b) a stereoisomeric mixture of syn- and anti-alcohols at the beginning of the synthetic sequence could be separated and the rest of the synthesis could be carried out with the main syn-stereoisomer instead of the corresponding stereoisomeric mixture as it was the case in the previous process. Additionally, several functional 2,8-ethanonoradamantane derivatives have been prepared.
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Affiliation(s)
- Pelayo Camps
- Laboratori de Química Farmacèutica (Unitat Associada al CSIC), Facultat de Farmàcia i Ciències de la Alimentació and Institut de Biomedicina (IBUB), Universitat de Barcelona, Av. Joan XXIII 27-31, Barcelona 08028, Spain.
| | - Tània Gómez
- Departament de Mineralogia, Petrologia i Geologia Aplicada, Universitat de Barcelona, Martí Franquès s/n, Barcelona 08028, Spain.
| | - Ane Otermin
- Departament de Mineralogia, Petrologia i Geologia Aplicada, Universitat de Barcelona, Martí Franquès s/n, Barcelona 08028, Spain.
| | - Mercè Font-Bardia
- Departament de Mineralogia, Petrologia i Geologia Aplicada, Universitat de Barcelona, Martí Franquès s/n, Barcelona 08028, Spain.
- Unitat de Difracció de RX, Centres Científics i Tecnològics de la Universitat de Barcelona (CCiTUB), Solé i Sabarís 1-3, Barcelona 08028, Spain.
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29
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Yuan C, Du B, Deng H, Man Y, Liu B. Total Syntheses of Sarcandrolide J and Shizukaol D: Lindenane Sesquiterpenoid [4+2] Dimers. Angew Chem Int Ed Engl 2016; 56:637-640. [DOI: 10.1002/anie.201610484] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Changchun Yuan
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education; College of Chemistry; Sichuan University; 29 Wangjiang Rd., Chengdu Sichuan 610064 China
| | - Biao Du
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education; College of Chemistry; Sichuan University; 29 Wangjiang Rd., Chengdu Sichuan 610064 China
| | - Heping Deng
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education; College of Chemistry; Sichuan University; 29 Wangjiang Rd., Chengdu Sichuan 610064 China
| | - Yi Man
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education; College of Chemistry; Sichuan University; 29 Wangjiang Rd., Chengdu Sichuan 610064 China
| | - Bo Liu
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education; College of Chemistry; Sichuan University; 29 Wangjiang Rd., Chengdu Sichuan 610064 China
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 210009 China
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30
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Yuan C, Du B, Deng H, Man Y, Liu B. Total Syntheses of Sarcandrolide J and Shizukaol D: Lindenane Sesquiterpenoid [4+2] Dimers. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610484] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Changchun Yuan
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education; College of Chemistry; Sichuan University; 29 Wangjiang Rd., Chengdu Sichuan 610064 China
| | - Biao Du
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education; College of Chemistry; Sichuan University; 29 Wangjiang Rd., Chengdu Sichuan 610064 China
| | - Heping Deng
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education; College of Chemistry; Sichuan University; 29 Wangjiang Rd., Chengdu Sichuan 610064 China
| | - Yi Man
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education; College of Chemistry; Sichuan University; 29 Wangjiang Rd., Chengdu Sichuan 610064 China
| | - Bo Liu
- Key Laboratory of Green Chemistry & Technology of the Ministry of Education; College of Chemistry; Sichuan University; 29 Wangjiang Rd., Chengdu Sichuan 610064 China
- State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing 210009 China
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31
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Berkes B, Ozsváth K, Molnár L, Gáti T, Holczbauer T, Kardos G, Soós T. Expedient and Diastereodivergent Assembly of Terpenoid Decalin Subunits having Quaternary Stereocenters through Organocatalytic Robinson Annulation of Nazarov Reagent. Chemistry 2016; 22:18101-18106. [DOI: 10.1002/chem.201604541] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Indexed: 12/18/2022]
Affiliation(s)
- Barbara Berkes
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
| | - Kristóf Ozsváth
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
| | - Laura Molnár
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
| | - Tamás Gáti
- Servier Research Institute of Medicinal Chemistry; Záhony Street 7 1031 Budapest Hungary
| | - Tamás Holczbauer
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
| | - György Kardos
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
| | - Tibor Soós
- Institute of Organic Chemistry; Hungarian Academy of Sciences; 1519 Budapest, P.O. Box 286 Hungary
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32
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Hanson JR. Chiral Cyclic Synthetic Intermediates from Readily Available Monoterpenoids. JOURNAL OF CHEMICAL RESEARCH 2015. [DOI: 10.3184/174751915x14471674408987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The preparation of some chiral cyclic synthetic intermediates from car-3-ene, linalool, limonene, α-pinene and camphor, is reviewed. Some applications of these intermediates are described.
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Affiliation(s)
- James R. Hanson
- Department of Chemistry, University of Sussex, Brighton, Sussex BNl 9QJ, UK
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33
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D'Souza F, Imahori H. Preface — Special Issue in Honor of Professor Shunichi Fukuzumi. J PORPHYR PHTHALOCYA 2015. [DOI: 10.1142/s1088424615020010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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34
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Saicic RN. Protecting group-free syntheses of natural products and biologically active compounds. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.025] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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35
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Abstract
The first total synthesis of aspeverin, a prenylated indole alkaloid isolated from Aspergillus versicolor in 2013, is described. Key steps utilized to assemble the core structure of the target include a highly diastereoselective Diels-Alder reaction, a Curtius rearrangement, and a unique strategy for installation of the geminal dimethyl group. A novel iodine(III)-initiated cyclization was then used to install the bicyclic urethane linkage distinctive to the natural product.
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Affiliation(s)
- Adam M. Levinson
- Tri-Institutional PhD Program in Chemical Biology, Laboratory for Bioorganic Chemistry, Memorial Sloan-Kettering Cancer Center, 1275 York Avenue, New York, New York 10065, United States
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36
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37
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Affiliation(s)
- Jiayun He
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - Jesse Ling
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
| | - Pauline Chiu
- Department of Chemistry and
State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong
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38
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Haibach MC, Seidel D. C-H-Funktionalisierung über intramolekularen Hydridtransfer. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201306489] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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39
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Haibach MC, Seidel D. CH Bond Functionalization through Intramolecular Hydride Transfer. Angew Chem Int Ed Engl 2014; 53:5010-36. [DOI: 10.1002/anie.201306489] [Citation(s) in RCA: 175] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Indexed: 11/07/2022]
Affiliation(s)
- Michael C. Haibach
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901 (USA) seidel.rutchem.rutgers.edu http://www.seidel‐group.com
| | - Daniel Seidel
- Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, NJ 08901 (USA) seidel.rutchem.rutgers.edu http://www.seidel‐group.com
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40
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Hale KJ. Terpenoid- and shikimate-derived natural product total synthesis: a personal analysis and commentary on the importance of the papers that appear in this virtual issue. Org Lett 2014; 15:3181-98. [PMID: 23826672 DOI: 10.1021/ol401788y] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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41
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Handore KL, Seetharamsingh B, Reddy DS. Ready Access to Functionally Embellished cis-Hydrindanes and cis-Decalins: Protecting Group-Free Total Syntheses of (±)-Nootkatone and (±)-Noreremophilane. J Org Chem 2013; 78:8149-54. [DOI: 10.1021/jo401033j] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kishor L. Handore
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008,
India
| | - B. Seetharamsingh
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008,
India
| | - D. Srinivasa Reddy
- CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune, 411008,
India
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42
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Hagiwara H. Carvone as a Versatile Chiral Building Block for Total Syntheses of Heterocyclic Sesquiterpenoids. Nat Prod Commun 2013. [DOI: 10.1177/1934578x1300800719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
This review article is focused on the total syntheses of heterocyclic sesquiterpenoids starting from carvone since 1996.
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Affiliation(s)
- Hisahiro Hagiwara
- Graduate School of Science and Technology Niigata University 8050 2-Nocho Ikarashi Nishi-ku Niigata 950-2181 Japan
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43
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Hayashida O, Ichimura K, Sato D, Yasunaga T. Synthesis, guest-binding, and reduction-responsive degradation properties of water-soluble cyclophanes having disulfide moieties. J Org Chem 2013; 78:5463-9. [PMID: 23679225 DOI: 10.1021/jo400591w] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Water-soluble cationic cyclophane having diphenyl disulfide moieties (1a) was synthesized as a reduction-responsive degradable host. The stoichiometry for the complex of 1a with anionic fluorescence guests, such as 4,4'-bis(1-anilinonaphthalene-8-sulfonate) (Bis-ANS) and 4-(1-pyrene)-butanoic acid (PBA), was confirmed to be 1:1 host:guest by a Job plot. The binding constants (K) of 1a toward Bis-ANS and PBA were evaluated to be 6.7 × 10(3) and 4.5 × 10(4) M(-1), respectively, as confirmed by fluorescence spectroscopy. Reduction of disulfide bonds of 1a by dithiothreitol gave its reduced form having poor guest-binding affinity that led to release of the entrapped guest molecules to the bulk aqueous phase. Meanwhile, anionic cyclophane 1b, which was derived from 1a by a reaction with succinic anhydride, binds cationic anticancer drugs, such as daunorubicin hydrochloride (DNR) and doxorubicin hydrochloride (DOX), with a K of 2.1 × 10(3) and 7.5 × 10(2) M(-1), respectively. A similar reduction-responsive guest release feature was observed when DNR and DOX were employed as a guest for complexation with 1b.
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Affiliation(s)
- Osamu Hayashida
- Department of Chemistry, Faculty of Science, Fukuoka University , 8-19-1 Nanakuma, Fukuoka 814-0180, Japan.
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44
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Handore KL, Reddy DS. A Diverted Total Syntheses of Potent Cell Adhesion Inhibitor Peribysin E Analogues. Org Lett 2013; 15:1894-7. [DOI: 10.1021/ol400555m] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kishor L. Handore
- CSIR-National Chemical Laboratory, Division of Organic Chemistry, Dr. Homi Bhabha Road, Pune, 411008, India
| | - D. Srinivasa Reddy
- CSIR-National Chemical Laboratory, Division of Organic Chemistry, Dr. Homi Bhabha Road, Pune, 411008, India
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45
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46
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47
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Zhang J, Wang L, Liu Q, Yang Z, Huang Y. Synthesis of α,β-unsaturated carbonyl compounds via a visible-light-promoted organocatalytic aerobic oxidation. Chem Commun (Camb) 2013; 49:11662-4. [DOI: 10.1039/c3cc46778c] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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48
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Camps P, Gómez T, Monasterolo C. An Entry to Functionalized 2,8-Ethanonoradamantane Derivatives. J Org Chem 2012. [DOI: 10.1021/jo302398c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Pelayo Camps
- Laboratori de Química Farmacèutica (Unitat
Associada al CSIC), Facultat de Farmàcia and Institut de Biomedicina
(IBUB), Universitat de Barcelona, Av. Diagonal
643, E-08028 Barcelona, Spain
| | - Tània Gómez
- Laboratori de Química Farmacèutica (Unitat
Associada al CSIC), Facultat de Farmàcia and Institut de Biomedicina
(IBUB), Universitat de Barcelona, Av. Diagonal
643, E-08028 Barcelona, Spain
| | - Claudio Monasterolo
- Laboratori de Química Farmacèutica (Unitat
Associada al CSIC), Facultat de Farmàcia and Institut de Biomedicina
(IBUB), Universitat de Barcelona, Av. Diagonal
643, E-08028 Barcelona, Spain
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49
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Lauer MG, Henderson WH, Awad A, Stambuli JP. Palladium-catalyzed reactions of enol ethers: access to enals, furans, and dihydrofurans. Org Lett 2012; 14:6000-3. [PMID: 23163699 DOI: 10.1021/ol3028994] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The palladium-catalyzed oxidation of alkyl enol ethers to enals, which employs low loadings of a palladium catalyst, is described. The mild oxidation conditions tolerate a diverse array of functional groups, while allowing the formation of di-, tri-, and tetrasubtituted olefins. The application of this methodology to intramolecular reactions of alkyl enol ethers containing pendant alcohols provides furan and 2,5-dihydrofuran products.
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Affiliation(s)
- Matthew G Lauer
- Evans Chemical Laboratories, Department of Chemistry, The Ohio State University, 100 West 18th Avenue, Columbus, Ohio 43210, USA
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50
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Cahill KJ, Johnson RP. Beyond Frontier Molecular Orbital Theory: A Systematic Electron Transfer Model (ETM) for Polar Bimolecular Organic Reactions. J Org Chem 2012; 78:1864-73. [DOI: 10.1021/jo301731v] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Katharine J. Cahill
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire 03824, United States
| | - Richard P. Johnson
- Department of Chemistry, University of New Hampshire, Durham, New Hampshire 03824, United States
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