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Umezawa T, Shibata M, Tamagawa R, Matsuda F. Neighboring Effect of Intramolecular Chlorine Atoms on Epoxide Opening Reaction by Chloride Anions. Org Lett 2019; 21:7731-7735. [PMID: 31535869 DOI: 10.1021/acs.orglett.9b02624] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We investigated the diastereoselectivity of ring openings for chloro vinyl epoxides with various chlorination reagents. In the chlorinolysis reactions using vinyl epoxides having an allyl alcohol, inversion:retention ratios varied depending on the chloride sources. In limited cases, the increase in retention ratio was consistent with the intervention of chloronium ions. In contrast, all vinyl epoxides bearing an α,β-unsaturated ester gave only the inversion products. These results suggest the electron-withdrawing property suppressed the chloronium ions.
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Affiliation(s)
- Taiki Umezawa
- Division of Environmental Materials Science, Graduate School of Environmental Science , Hokkaido University , Sapporo 060-0810 , Japan
| | - Masayuki Shibata
- Division of Environmental Materials Science, Graduate School of Environmental Science , Hokkaido University , Sapporo 060-0810 , Japan
| | - Ryutaro Tamagawa
- Division of Environmental Materials Science, Graduate School of Environmental Science , Hokkaido University , Sapporo 060-0810 , Japan
| | - Fuyuhiko Matsuda
- Division of Environmental Materials Science, Graduate School of Environmental Science , Hokkaido University , Sapporo 060-0810 , Japan
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2
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Sondermann P, Carreira EM. Stereochemical Revision, Total Synthesis, and Solution State Conformation of the Complex Chlorosulfolipid Mytilipin B. J Am Chem Soc 2019; 141:10510-10519. [PMID: 31244189 DOI: 10.1021/jacs.9b05013] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Chlorosulfolipids constitute a structurally intriguing and synthetically challenging class of marine natural products that are isolated from mussels and freshwater algae. The most complex structure from this family of compounds is currently represented by Mytilipin B, isolated in 2002 from culinary mussel Mytilus galloprovincialis, whose initially proposed structure was shown to be incorrect. In this study, we present the synthesis of four diastereomers which allowed the reassignment of eight stereocenters and the stereochemical revision of Mytilipin B, along with the determination of the dominant solution-state conformation.
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Affiliation(s)
- Philipp Sondermann
- Eidgenössische Technische Hochschule Zürich , Vladimir-Prelog-Weg 3 , 8093 Zürich , Switzerland
| | - Erick M Carreira
- Eidgenössische Technische Hochschule Zürich , Vladimir-Prelog-Weg 3 , 8093 Zürich , Switzerland
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Seidl FJ, Min C, Lopez JA, Burns NZ. Catalytic Regio- and Enantioselective Haloazidation of Allylic Alcohols. J Am Chem Soc 2018; 140:15646-15650. [PMID: 30403852 DOI: 10.1021/jacs.8b10799] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Herein we report a highly regio- and stereoselective haloazidation of allylic alcohols. This enantioselective reaction uses readily available materials and can be performed on a variety of alkyl-substituted alkenes and can incorporate either bromine or chlorine as the electrophilic halogen component. Both halide and azido groups of the resulting products can be transformed into valuable building blocks with complete stereospecificity. The first example of an enantioselective 1,4-haloazidation of a conjugated diene is reported as well as its application to a concise synthesis of an aza-sugar.
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Affiliation(s)
- Frederick J Seidl
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
| | - Chang Min
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
| | - Jovan A Lopez
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
| | - Noah Z Burns
- Department of Chemistry , Stanford University , Stanford , California 94305 , United States
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Chung WJ, Vanderwal CD. Stereoselective Halogenation in Natural Product Synthesis. Angew Chem Int Ed Engl 2016; 55:4396-434. [PMID: 26833878 PMCID: PMC6028003 DOI: 10.1002/anie.201506388] [Citation(s) in RCA: 197] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 08/27/2015] [Indexed: 01/23/2023]
Abstract
At last count, nearly 5000 halogenated natural products have been discovered. In approximately half of these compounds, the carbon atom to which the halogen is bound is sp(3) -hybridized; therefore, there are an enormous number of natural products for which stereocontrolled halogenation must be a critical component of any synthesis strategy. In this Review, we critically discuss the methods and strategies used for stereoselective introduction of halogen atoms in the context of natural product synthesis. Using the successes of the past, we also attempt to identify gaps in our synthesis technology that would aid the synthesis of halogenated natural products, as well as existing methods that have not yet seen application in complex molecule synthesis. The chemistry described herein demonstrates yet again how natural products continue to provide the inspiration for critical advances in chemical synthesis.
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Affiliation(s)
- Won-jin Chung
- Department of Chemistry, Gwangju Institute of Science and Technology, Gwangju, South Korea.
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Chung WJ, Vanderwal CD. Stereoselektive Halogenierungen in der Naturstoffsynthese. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201506388] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Won-jin Chung
- Department of Chemistry; Gwangju Institute of Science and Technology; Gwangju Südkorea
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Wang C, Yamamoto H. Tungsten-, Molybdenum-, and Cerium-Promoted Regioselective and Stereospecific Halogenation of 2,3-Epoxy Alcohols and 2,3-Epoxy Sulfonamides. Org Lett 2014; 16:5937-9. [DOI: 10.1021/ol503091n] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Chuan Wang
- Department
of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
| | - Hisashi Yamamoto
- Department
of Chemistry, The University of Chicago, 5735 South Ellis Avenue, Chicago, Illinois 60637, United States
- Molecular
Catalyst Research Center, Chubu University, 1200 Matsumoto, Kasugai, Aichi 487-8501, Japan
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Nilewski C, Carreira EM. Recent Advances in the Total Synthesis of Chlorosulfolipids. European J Org Chem 2012. [DOI: 10.1002/ejoc.201101525] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Nilewski C, Deprez NR, Fessard TC, Li DB, Geisser RW, Carreira EM. Synthese von Undecachlorsulfolipid A: Reevaluierung der nominalen Struktur. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201102521] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Nilewski C, Deprez NR, Fessard TC, Li DB, Geisser RW, Carreira EM. Synthesis of undecachlorosulfolipid A: re-evaluation of the nominal structure. Angew Chem Int Ed Engl 2011; 50:7940-3. [PMID: 21744447 DOI: 10.1002/anie.201102521] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2011] [Indexed: 11/10/2022]
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Nilewski C, Geisser RW, Ebert MO, Carreira EM. Conformational and configurational analysis in the study and synthesis of chlorinated natural products. J Am Chem Soc 2010; 131:15866-76. [PMID: 19817365 DOI: 10.1021/ja906461h] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The first detailed study of the J-based configuration analysis method in chlorinated hydrocarbons and chlorohydrins is presented along with the development of a spectroscopic database that facilitates configurational assignment of these structures. The data are generated through the investigation of model structures in solution by NMR spectroscopic methods and in the solid state by X-ray crystallography. Consequently, complete conformational analysis of trichlorinated hexane-1,2- and -1,3-diols is presented. The investigations in chlorinated systems for the first time attest to the relevance, reliability, and accuracy of the spectroscopic approach in configurational assignment, which had been otherwise developed for polyketides. During the synthesis of the various molecules that constitute the database and exemplify the various possible stereochemical patterns, a number of observations were made that underscore the unique features of these chlorinated systems. Thus, certain diastereomeric subclasses of 4,5-dichloro-2,3-epoxyhexane-1-ols display a propensity to undergo ring-opening reactions at C-3 with concomitant inversion of configuration at the neighboring C-Cl at C4, implicating the intermediacy of chloronium ions. The observations of positional and stereochemical scrambling in polychlorinated hydrocarbons underscore the necessity of a spectroscopic database that enables rapid, reliable configurational assignment of chlorinated natural products and intermediates en route to these.
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Affiliation(s)
- Christian Nilewski
- Laboratorium für Organische Chemie, ETH Zürich, CH-8093 Zürich, Switzerland
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Tanaka T, Hiramatsu K, Kobayashi Y, Ohno H. Chemo- and stereoselectivity in titanium-mediated regioselective ring-opening reaction of epoxides at the more substituted carbon. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.05.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Ohno H, Hiramatsu K, Tanaka T. Asymmetric construction of quaternary carbon centers by titanium-mediated stereospecific allylation of 2,3-epoxy alcohol derivatives. Tetrahedron Lett 2004. [DOI: 10.1016/j.tetlet.2003.10.112] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ceccarelli SM, Piarulli U, Telser J, Gennari C. A carbonylative cross-coupling strategy to the total synthesis of the sarcodictyins: preliminary studies and synthesis of a cyclization precursor. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(01)01608-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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14
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Hara S, Hoshio T, Kameoka M, Sawaguchi M, Fukuhara T, Yoneda N. Regio- and stereoselective fluorinative ring-opening reaction of epoxyalcohols by (i-PrO)2TiF2-Et4NF-nHF. Synthesis of optically active 3-fluoro-1,2-diols. Tetrahedron 1999. [DOI: 10.1016/s0040-4020(99)00180-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Brånalt J, Kvarnström I, Classon B, Samuelsson B. Synthesis of [4,5-Bis(hydroxymethyl)-1,3-oxathiolan-2-yl]nucleosides as Potential Inhibitors of HIV via Stereospecific Base-Induced Rearrangement of a 2,3-Epoxy Thioacetate(1). J Org Chem 1996; 61:3604-3610. [PMID: 11667205 DOI: 10.1021/jo960009c] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The synthesis of [4,5-bis(hydroxymethyl)-1,3-oxathiolan-2-yl]nucleosides is described. 2,3-Epoxy alcohol 10 was converted in one pot into thioacetate 11. Treatment of 11 under mild alkaline conditions gave thiirane 12 with inversion of configuration at C-2. We also found that thioacetate 11 rearranges into thiirane 14 under mild acidic conditions. This rearrangement reaction was shown by independent synthesis to proceed with net retention of configuration at C-2. We have proposed a tentative mechanism which may explain the results obtained. Opening of thiiranes 12 and 14 followed by deprotection gave (2R,3R)-2-thiothreitol (23) and (2S,3R)-2-thioerythritol (25), respectively. Regioselective silylation of the primary hydroxyl groups of 23 followed by treatment with trimethyl orthoformate gave 2-methoxy-1,3-oxathiolanes 26 and 27. Condensation with silylated bases followed by deprotection and separation of the anomers gave the oxathiolanylnucleosides. Compounds 29-31, 34, and 35 were found to be inactive when tested for inhibition of HIV-1 activity in vitro.
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Affiliation(s)
- Jonas Brånalt
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, S-106 91 Stockholm, Sweden
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Alcaide B, Biurrun C, Plumet J. The uncatalyzed alcoholysis of furyl-2-oxirane. A mechanistic study based on kinetic data. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)80709-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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E. Raifeld Y, A. Nikitenko A, M. Arshava B, E. Mikerin I, L. Zilberg L, Ya. Vid G, A. Lang S, J. Lee V. Synthesis of 3-substituted (azido, acylthio, chloro or fluoro)-2,3-dideoxy-D-erythro-pentoses and 3-methyl-3-substituted-2,3-dideoxy-D-erythro-pentoses. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)85335-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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18
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Guanti G, Merlo V, Narisano E. Regiocontrol in nucleophilic ring opening of chiral epoxides of chemoenzymatic origin. Tetrahedron 1994. [DOI: 10.1016/s0040-4020(01)89574-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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19
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Acyloxy tri(isopropoxy)titanium reagents for regioselective cleavage of 2,3-epoxyalcohols. A synthesis of 2-deoxy-d-ribose. Tetrahedron 1993. [DOI: 10.1016/s0040-4020(01)86329-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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20
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Nikitenko AA, Arshava BM, Mikerin IE, Raifeld YE, Lee VJ, Lang SA. A novel reagent for regioselective cleavage of 2,3-epoxyalcohols by fluoride - a synthesis of 3-fluoro-293-dideoxy-d-erythro-pentose. Tetrahedron Lett 1992. [DOI: 10.1016/s0040-4039(00)60842-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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