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Ando Y, Ogawa D, Ohmori K, Suzuki K. Enantioselective Total Syntheses of Preussomerins: Control of Spiroacetal Stereogenicity by Photochemical Reaction of a Naphthoquinone through 1,6-Hydrogen Atom Transfer. Angew Chem Int Ed Engl 2023; 62:e202213682. [PMID: 36446739 PMCID: PMC10107447 DOI: 10.1002/anie.202213682] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 11/16/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
Abstract
We report the enantioselective total syntheses of preussomerins EG1 , EG2 , and EG3 . The key transformation is a stereospecific photochemical reaction involving 1,6-hydrogen atom transfer to achieve retentive replacement of a C-H with a C-O bond, enabling otherwise-difficult control of the spiroacetal stereogenic center.
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Affiliation(s)
- Yoshio Ando
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Daichi Ogawa
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Ken Ohmori
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
| | - Keisuke Suzuki
- Department of Chemistry, Tokyo Institute of Technology, 2-12-1 O-okayama, Meguro-ku, Tokyo, 152-8551, Japan
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2
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Xu L, Ma H, An X, Li Y, Zhang Q, Liu X, Wang M. Total synthesis, structure revision and cytotoxic activity of Sch 53825 and its derivatives. RSC Adv 2022; 12:17629-17636. [PMID: 35765427 PMCID: PMC9194939 DOI: 10.1039/d2ra02898k] [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: 05/07/2022] [Accepted: 06/01/2022] [Indexed: 11/25/2022] Open
Abstract
The first total synthesis of Sch 53825 (14) was achieved in 12 steps from 5-hydroxy-1-tetralone in 16% overall yield through N-benzyl cinchoninium chloride-catalyzed asymmetric epoxidation and a Mitsunobu reaction as the key steps. On this basis, the synthesis of palmarumycin B6 was improved using the same raw material with 6 steps and 32% overall yield. Also, three new analogues with two chlorine atoms were synthesized. Their structures were characterized by 1H, 13C NMR, HR-ESI-MS and X-ray diffraction data. The structure of natural Sch 53825 was revised as an epimer of compound 1 with the anti-hydroxy epoxide at C-4. Their cytotoxic activities against several tumor cell lines (HCT116, U251, BGC823, Huh-7 and PC9) showed that compound 11 exhibited excellent cytotoxicity against above mentioned cancer cell lines with IC50 < 0.5 μM. The first total synthesis of Sch 53825 (14) was achieved in 12 steps from 5-hydroxy-1-tetralone in 16% overall yield through N-benzyl cinchoninium chloride-catalyzed asymmetric epoxidation and a Mitsunobu reaction as the key steps.![]()
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Affiliation(s)
- Leichuan Xu
- Department of Applied Chemistry, College of Science, China Agricultural University Beijing 100193 People's Republic of China
| | - Haoyun Ma
- Department of Applied Chemistry, College of Science, China Agricultural University Beijing 100193 People's Republic of China
| | - Xinkun An
- Department of Applied Chemistry, College of Science, China Agricultural University Beijing 100193 People's Republic of China
| | - Yihao Li
- Department of Applied Chemistry, College of Science, China Agricultural University Beijing 100193 People's Republic of China
| | - Qian Zhang
- Department of Applied Chemistry, College of Science, China Agricultural University Beijing 100193 People's Republic of China
| | - Xinlei Liu
- Department of Applied Chemistry, College of Science, China Agricultural University Beijing 100193 People's Republic of China
| | - Mingan Wang
- Department of Applied Chemistry, College of Science, China Agricultural University Beijing 100193 People's Republic of China
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Majhi S. Applications of Norrish type I and II reactions in the total synthesis of natural products: a review. Photochem Photobiol Sci 2021; 20:1357-1378. [PMID: 34537894 DOI: 10.1007/s43630-021-00100-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 09/06/2021] [Indexed: 01/12/2023]
Abstract
Natural products and their analogue have played a key role in the drug discovery and development process. In the laboratory, the total synthesis of secondary metabolites is very useful in ascertaining the hypothetical complex structure of molecules of natural origin. Total synthesis of natural products using Norrish type I and II reactions as a crucial step has been explored in this overview. Norrish reactions are important photo-induced transformations of carbonyl compounds in organic synthetic chemistry and are connected in numerous industrially and biologically relevant procedures and the processing of carbonyl compounds in the atmosphere. The present review tries to focus on the brilliant applications of Norrish type I and II photochemical reactions as a key step in the total synthesis of natural products and highlights on natural sources, structures, and biological activities of the promising natural products for the first time elegantly.
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Affiliation(s)
- Sasadhar Majhi
- Department of Chemistry (UG and PG Department), Triveni Devi Bhalotia College, Kazi Nazrul University, Raniganj, 713347, West Bengal, India.
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4
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Shu X, Chen CC, Yu T, Yang J, Hu X. Enantioselective Total Synthesis of (-)-Spiroxins A, C, and D. Angew Chem Int Ed Engl 2021; 60:18514-18518. [PMID: 34138512 DOI: 10.1002/anie.202105921] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2021] [Revised: 06/03/2021] [Indexed: 11/10/2022]
Abstract
Spiroxins A, C, and D are metabolites that have been identified in the marine fungal strain LL-37H248. Their unique polycyclic structures and intriguing biological activities make them attractive targets for the synthetic community. Based on a scalable enantioselective epoxidation of 5-substituted naphthoquinone, an oxidation/spiroketalization cascade, ortho-selective chlorination of the phenol unit, and oxime-ester-directed acetoxylation, an enantioselective total synthesis of (-)-spiroxins A and C and the first total synthesis of (-)-spiroxin D have been achieved.
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Affiliation(s)
- Xin Shu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Chong-Chong Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Tao Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Jiayi Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
| | - Xiangdong Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an, 710127, China
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5
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Shu X, Chen C, Yu T, Yang J, Hu X. Enantioselective Total Synthesis of (−)‐Spiroxins A, C, and D. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105921] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Xin Shu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Chong‐Chong Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Tao Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Jiayi Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
| | - Xiangdong Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education College of Chemistry & Materials Science Northwest University Xi'an 710127 China
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6
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Ando Y. Total Syntheses of Structurally Complex Natural Products: Potential Reactivity of Organic Molecules. J SYN ORG CHEM JPN 2020. [DOI: 10.5059/yukigoseikyokaishi.78.304] [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)
- Yoshio Ando
- Department of Chemistry, School of Science, Tokyo Institute of Technology
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7
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Ando Y, Tanaka D, Sasaki R, Ohmori K, Suzuki K. Stereochemical Dichotomy in Two Competing Cascade Processes: Total Syntheses of Both Enantiomers of Spiroxin A. Angew Chem Int Ed Engl 2019; 58:12507-12513. [DOI: 10.1002/anie.201906762] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Yoshio Ando
- Department of ChemistryTokyo Institute of Technology 2-12-1 O-okayama Meguro Tokyo 152-8551 Japan
| | - Daisuke Tanaka
- Department of ChemistryTokyo Institute of Technology 2-12-1 O-okayama Meguro Tokyo 152-8551 Japan
| | - Ryota Sasaki
- Department of ChemistryTokyo Institute of Technology 2-12-1 O-okayama Meguro Tokyo 152-8551 Japan
| | - Ken Ohmori
- Department of ChemistryTokyo Institute of Technology 2-12-1 O-okayama Meguro Tokyo 152-8551 Japan
| | - Keisuke Suzuki
- Department of ChemistryTokyo Institute of Technology 2-12-1 O-okayama Meguro Tokyo 152-8551 Japan
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8
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Ando Y, Tanaka D, Sasaki R, Ohmori K, Suzuki K. Stereochemical Dichotomy in Two Competing Cascade Processes: Total Syntheses of Both Enantiomers of Spiroxin A. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906762] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yoshio Ando
- Department of ChemistryTokyo Institute of Technology 2-12-1 O-okayama Meguro Tokyo 152-8551 Japan
| | - Daisuke Tanaka
- Department of ChemistryTokyo Institute of Technology 2-12-1 O-okayama Meguro Tokyo 152-8551 Japan
| | - Ryota Sasaki
- Department of ChemistryTokyo Institute of Technology 2-12-1 O-okayama Meguro Tokyo 152-8551 Japan
| | - Ken Ohmori
- Department of ChemistryTokyo Institute of Technology 2-12-1 O-okayama Meguro Tokyo 152-8551 Japan
| | - Keisuke Suzuki
- Department of ChemistryTokyo Institute of Technology 2-12-1 O-okayama Meguro Tokyo 152-8551 Japan
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9
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10
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Ando Y, Hanaki A, Sasaki R, Ohmori K, Suzuki K. Stereospecificity in Intramolecular Photoredox Reactions of Naphthoquinones: Enantioselective Total Synthesis of (−)-Spiroxin C. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705562] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yoshio Ando
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro Tokyo 152-8551 Japan
| | - Atsuko Hanaki
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro Tokyo 152-8551 Japan
| | - Ryota Sasaki
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro Tokyo 152-8551 Japan
| | - Ken Ohmori
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro Tokyo 152-8551 Japan
| | - Keisuke Suzuki
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro Tokyo 152-8551 Japan
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11
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Ando Y, Hanaki A, Sasaki R, Ohmori K, Suzuki K. Stereospecificity in Intramolecular Photoredox Reactions of Naphthoquinones: Enantioselective Total Synthesis of (−)-Spiroxin C. Angew Chem Int Ed Engl 2017; 56:11460-11465. [DOI: 10.1002/anie.201705562] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Yoshio Ando
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro Tokyo 152-8551 Japan
| | - Atsuko Hanaki
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro Tokyo 152-8551 Japan
| | - Ryota Sasaki
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro Tokyo 152-8551 Japan
| | - Ken Ohmori
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro Tokyo 152-8551 Japan
| | - Keisuke Suzuki
- Department of Chemistry; Tokyo Institute of Technology; 2-12-1 O-okayama, Meguro Tokyo 152-8551 Japan
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12
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Lauer MG, Thompson MK, Shaughnessy KH. Controlling olefin isomerization in the heck reaction with neopentyl phosphine ligands. J Org Chem 2014; 79:10837-48. [PMID: 25333873 DOI: 10.1021/jo501840u] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The use of neopentyl phosphine ligands was examined in the coupling of aryl bromides with alkenes. Di-tert-butylneopentylphosphine (DTBNpP) was found to promote Heck couplings with aryl bromides at ambient temperature. In the Heck coupling of cyclic alkenes, the degree of alkene isomerization was found to be controlled by the choice of ligand with DTBNpP promoting isomerization to a much greater extent than trineopentylphosphine (TNpP). Under optimal conditions, DTBNpP provides high selectivity for 2-aryl-2,3-dihydrofuran in the arylation of 2,3-dihydrofuran, whereas TNpP provided high selectivity for the isomeric 2-aryl-2,5-dihydrofuran. A similar complementary product selectivity is seen in the Heck coupling of cyclopentene. Heck coupling of 2-bromophenols or 2-bromoanilides with 2,3-dihydrofurans affords 2,5-epoxybenzoxepin and 2,5-epoxybenzazepins, respectively.
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Affiliation(s)
- Matthew G Lauer
- Department of Chemistry, The University of Alabama , P.O. Box 870336, Tuscaloosa, Alabama 35487-0336, United States
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13
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Kwan A, Stein J, Carrico-Moniz D. A catalytic asymmetric entry to enantioenriched tertiary naphthoquinols via a facile tandem oxidation/ring-opening sequence. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.04.020] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Cai YS, Guo YW, Krohn K. Structure, bioactivities, biosynthetic relationships and chemical synthesis of the spirodioxynaphthalenes. Nat Prod Rep 2010; 27:1840-70. [PMID: 21038061 DOI: 10.1039/c0np00031k] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- You-Sheng Cai
- State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zu Chong Zhi Rd. 555, Shanghai, 201203, People's Republic of China
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15
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16
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McConnell O, Bach A, Balibar C, Byrne N, Cai Y, Carter G, Chlenov M, Di L, Fan K, Goljer I, He Y, Herold D, Kagan M, Kerns E, Koehn F, Kraml C, Marathias V, Marquez B, McDonald L, Nogle L, Petucci C, Schlingmann G, Tawa G, Tischler M, Williamson RT, Sutherland A, Watts W, Young M, Zhang MY, Zhang Y, Zhou D, Ho D. Enantiomeric separation and determination of absolute stereochemistry of asymmetric molecules in drug discovery—Building chiral technology toolboxes. Chirality 2007; 19:658-82. [PMID: 17390370 DOI: 10.1002/chir.20399] [Citation(s) in RCA: 82] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The application of Chiral Technology, or the (extensive) use of techniques or tools for the determination of absolute stereochemistry and the enantiomeric or chiral separation of racemic small molecule potential lead compounds, has been critical to successfully discovering and developing chiral drugs in the pharmaceutical industry. This has been due to the rapid increase over the past 10-15 years in potential drug candidates containing one or more asymmetric centers. Based on the experiences of one pharmaceutical company, a summary of the establishment of a Chiral Technology toolbox, including the implementation of known tools as well as the design, development, and implementation of new Chiral Technology tools, is provided.
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Affiliation(s)
- Oliver McConnell
- Wyeth Research, Chemical and Screening Sciences, Collegeville, PA 19426, USA.
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17
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Miyashita K, Imanishi T. Syntheses of Natural Products Having an Epoxyquinone Structure. Chem Rev 2005; 105:4515-36. [PMID: 16351052 DOI: 10.1021/cr040613k] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kazuyuki Miyashita
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan
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18
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Chemistry of the diboron compounds. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/s0169-3158(06)80002-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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19
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Biland-Thommen AS, Raju GS, Blagg J, White AJ, Barrett AG. Double benzyne–furan cycloaddition and the assembly of 1,1′-binaphthyl and 1,1′-dinaphthyl ether systems. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2004.03.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Wipf P, Lynch SM. Synthesis of highly oxygenated dinaphthyl ethers via SNAr reactions promoted by Barton's base. Org Lett 2003; 5:1155-8. [PMID: 12659597 DOI: 10.1021/ol034286z] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] Electron-rich dinaphthyl ethers were synthesized by S(N)Ar reactions between naphthols and activated fluoronaphthalenes. 2-tert-Butyl-1,1,3,3-tetramethylguanidine (Barton's base) was found to be an excellent, mild alternative to traditional inorganic bases for promoting the coupling reaction.
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Affiliation(s)
- Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, USA. pwipf+@pitt.edu
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21
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Inoue M, Nabatame K, Hirama M. A Novel Route to 1,8-Dihydroxy-naphthalene-derived Natural Products. Synthesis of (±)-CJ-12,372. HETEROCYCLES 2003. [DOI: 10.3987/com-02-s32] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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