1
|
Dubbu S, Vankar YD. Diversity-Oriented Synthesis of Carbohydrate Scaffolds through the Prins Cyclization of Differently Protectedd-Mannitol-Derived Homoallylic Alcohols. European J Org Chem 2017. [DOI: 10.1002/ejoc.201701172] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Sateesh Dubbu
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
| | - Yashwant D. Vankar
- Department of Chemistry; Indian Institute of Technology Kanpur; 208016 Kanpur India
| |
Collapse
|
2
|
Markovič M, Koóš P, Čarný T, Sokoliová S, Boháčiková N, Moncol J, Gracza T. Total Synthesis, Configuration Assignment, and Cytotoxic Activity Evaluation of Protulactone A. JOURNAL OF NATURAL PRODUCTS 2017; 80:1631-1638. [PMID: 28418248 DOI: 10.1021/acs.jnatprod.7b00212] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The first total synthesis and absolute configuration assignment of protulactone A (1) has been achieved. Four stereoisomers, 1a, ent-1a, 1b, and ent-1b, of this natural polyketide were prepared by chiral pool synthesis starting from l- and d-arabinose, respectively. The absolute and relative configurations of all isomers were assigned by single-crystal X-ray analysis. Target compounds were screened for their in vitro cytotoxicity toward certain human tumor cells (NCI60 cancer cell line panel).
Collapse
Affiliation(s)
| | - Peter Koóš
- Georganics Ltd. , Koreničova 1, SK-811 03 Bratislava, Slovakia
| | | | | | | | | | | |
Collapse
|
3
|
|
4
|
Brunner A, Hintermann L. A Sequential Homologation of Alkynes and Aldehydes for Chain Elongation with Optional (13)C-Labeling. Chemistry 2016; 22:2787-92. [PMID: 26788864 DOI: 10.1002/chem.201504248] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Indexed: 11/09/2022]
Abstract
Terminal alkynes (RCCH) are homologated by a sequence of ruthenium-catalyzed anti-Markovnikov hydration of alkyne to aldehyde (RCH2CHO), followed by Bestmann-Ohira alkynylation of aldehyde to chain-elongated alkyne (RCH2CCH). Inverting the sequence by starting from aldehyde brings about the reciprocal homologation of aldehydes instead. The use of (13)C-labeled Bestmann-Ohira reagent (dimethyl ((1-(13)C)-1-diazo-2-oxopropyl)phosphonate) for alkynylation provides straightforward access to singly or, through additional homologation, multiply (13) C-labeled alkynes. The labeled alkynes serve as synthetic platform for accessing a multitude of specifically (13)C-labeled products. Terminal alkynes with one or two (13)C-labels in the alkyne unit have been submitted to alkyne-azide click reactions; the copper-catalyzed version (CuAAC) was found to display a regioselectivity of >50,000:1 for the 1,4- over the 1,5-triazine isomer, as shown analytically by (13)C NMR spectroscopy.
Collapse
Affiliation(s)
- Andreas Brunner
- Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85748, Garching bei München, Germany
| | - Lukas Hintermann
- Department Chemie, Technische Universität München, Lichtenbergstr. 4, 85748, Garching bei München, Germany.
| |
Collapse
|
5
|
Simonetti SO, Larghi EL, Kaufman TS. The 3,4-dioxygenated 5-hydroxy-4-aryl-quinolin-2(1H)-one alkaloids. Results of 20 years of research, uncovering a new family of natural products. Nat Prod Rep 2016; 33:1425-1446. [DOI: 10.1039/c6np00064a] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The title alkaloids are discussed. Emphasis is placed on their isolation, source microorganisms and structure, as well as relevant biological activities and synthetic progress.
Collapse
Affiliation(s)
- Sebastian O. Simonetti
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas – Universidad Nacional de Rosario
- (2000) Rosario
- Argentina
| | - Enrique L. Larghi
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas – Universidad Nacional de Rosario
- (2000) Rosario
- Argentina
| | - Teodoro S. Kaufman
- Instituto de Química Rosario (IQUIR, CONICET-UNR)
- Facultad de Ciencias Bioquímicas y Farmacéuticas – Universidad Nacional de Rosario
- (2000) Rosario
- Argentina
| |
Collapse
|
6
|
Markovič M, Lopatka P, Koóš P, Gracza T. First total synthesis of natural andytriol and a biomimetic approach to varioxiranes. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
7
|
Kunde R, Ramakrishna KV, Radha Krishna P. Studies toward the total synthesis of (+)-etharvendiol. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.01.180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
8
|
Beccalli EM, Broggini G, Gazzola S, Mazza A. Recent advances in heterobimetallic palladium(ii)/copper(ii) catalyzed domino difunctionalization of carbon–carbon multiple bonds. Org Biomol Chem 2014; 12:6767-89. [DOI: 10.1039/c4ob00610k] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The Pd(ii)/Cu(ii)-catalysed double functionalization of carbon–carbon multiple bonds in domino processes has emerged in recent years as a fruitful tool for the rapid synthesis of complex molecular scaffolds.
Collapse
Affiliation(s)
- Egle M. Beccalli
- DISFARM
- Sezione Chimica Generale Organica “A. Marchesini”
- 20133 Milano, Italy
| | - Gianluigi Broggini
- Dipartimento di Scienza e Alta Tecnologia
- Università dell'Insubria
- 22100 Como, Italy
| | - Silvia Gazzola
- Dipartimento di Scienza e Alta Tecnologia
- Università dell'Insubria
- 22100 Como, Italy
| | - Alberto Mazza
- DISFARM
- Sezione Chimica Generale Organica “A. Marchesini”
- 20133 Milano, Italy
| |
Collapse
|
9
|
Mayr F, Wiegand C, Bach T. Enantioselective, intermolecular [2+2] photocycloaddition reactions of 3-acetoxyquinolone: total synthesis of (−)-pinolinone. Chem Commun (Camb) 2014; 50:3353-5. [DOI: 10.1039/c3cc49469a] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The natural product (−)-pinolinone was synthesised via a concise route (six steps, 17% overall yield) from 3-acetoxyquinolone, employing an enantioselective intermolecular [2+2] photocycloaddition as the key step.
Collapse
Affiliation(s)
- Florian Mayr
- Lehrstuhl für Organische Chemie I
- Technische Universität München
- 85747 Garching, Germany
| | - Christian Wiegand
- Lehrstuhl für Organische Chemie I
- Technische Universität München
- 85747 Garching, Germany
| | - Thorsten Bach
- Lehrstuhl für Organische Chemie I
- Technische Universität München
- 85747 Garching, Germany
| |
Collapse
|
10
|
Qin Z, Ma R, Xu S, He Z. Phosphine-catalyzed formal vinylogous aldol reaction of γ-methyl allenoates with aldehydes: easy access to 1,3-dioxanes and dienols. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.09.091] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
11
|
Covell DJ, White MC. A C-H oxidation approach for streamlining synthesis of chiral polyoxygenated motifs. Tetrahedron 2013; 69:7771-7778. [PMID: 25013239 PMCID: PMC4084758 DOI: 10.1016/j.tet.2013.05.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Chiral oxygenated molecules are pervasive in natural products and medicinal agents; however, their chemical syntheses often necessitate numerous, wasteful steps involving functional group and oxidation state manipulations. Herein a strategy for synthesizing a readily diversifiable class of chiral building blocks, allylic alcohols, through sequential asymmetric C-H activation/resolution is evaluated against the state-of-the-art. The C-H oxidation routes' capacity to strategically introduce oxygen into a sequence and thereby minimize non-productive manipulations is demonstrated to effect significant decreases in overall step-count and increases in yield and synthetic flexibility.
Collapse
Affiliation(s)
- Dustin J. Covell
- Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine Philadelphia, PA 19104, USA
| | - M. Christina White
- Department of Chemistry, Roger Adams Laboratory, University of Illinois Urbana, IL 61801, USA
| |
Collapse
|
12
|
Markovič M, Ďuranová M, Koóš P, Szolcsányi P, Gracza T. Synthesis of bis-tetrahydrofuran subunit of (−)-neopallavicinin. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.03.100] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
13
|
Wu XF, Neumann H, Beller M. Palladium-catalyzed oxidative carbonylation reactions. CHEMSUSCHEM 2013; 6:229-241. [PMID: 23307763 DOI: 10.1002/cssc.201200683] [Citation(s) in RCA: 268] [Impact Index Per Article: 24.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Indexed: 06/01/2023]
Abstract
Palladium-catalyzed coupling reactions have become a powerful tool for advanced organic synthesis. This type of reaction is of significant value for the preparation of pharmaceuticals, agrochemicals, as well as advanced materials. Both, academic as well as industrial laboratories continuously investigate new applications of the different methodologies. Clearly, this area constitutes one of the major topics in homogeneous catalysis and organic synthesis. Among the different palladium-catalyzed coupling reactions, several carbonylations have been developed and widely used in organic syntheses and are even applied in the pharmaceutical industry on ton-scale. Furthermore, methodologies such as the carbonylative Suzuki and Sonogashira reactions allow for the preparation of interesting building blocks, which can be easily refined further on. Although carbonylative coupling reactions of aryl halides have been well established, palladium-catalyzed oxidative carbonylation reactions are also interesting. Compared with the reactions of aryl halides, oxidative carbonylation reactions offer an interesting pathway. The oxidative addition step could be potentially avoided in oxidative reactions, but only few reviews exist in this area. In this Minireview, we summarize the recent development in the oxidative carbonylation reactions.
Collapse
Affiliation(s)
- Xiao-Feng Wu
- Department of Chemistry, Zhejiang Sci-Tech University, Xiasha Campus, Hangzhou, Zhejiang Province, 310018, PR China.
| | | | | |
Collapse
|
14
|
Synthesis of Saturated Heterocycles via Metal-Catalyzed Alkene Carboamination or Carboalkoxylation Reactions. TOPICS IN HETEROCYCLIC CHEMISTRY 2013. [DOI: 10.1007/7081_2012_98] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|
15
|
Lásiková A, Doháňošová J, Hlavínová L, Toffano M, Vo-Thanh G, Kožíšek J, Gracza T. Domino reaction: Pd(II)-catalyzed cyclization of unsaturated polyols and cross-coupling. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.tetasy.2012.05.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
16
|
Doháňošová J, Lásiková A, Toffano M, Gracza T, Vo-Thanh G. Kinetic resolution of pent-4-ene-1,3-diol by Pd(ii)-catalysed oxycarbonylation in ionic liquids. NEW J CHEM 2012. [DOI: 10.1039/c2nj40170c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
17
|
Moro AV, Rodrigues dos Santos M, Correia CRD. Stereoselective Synthesis of Aza Analogues of Isoaltholactone and Goniothalesdiol - New Applications of the Heck-Matsuda Reaction. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100886] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
18
|
Karlubíková O, Babjak M, Gracza T. Tetrahydropyran synthesis by palladium(II)-catalysed hydroxycarbonylation of hexenols: synthesis of (±)-diospongin A and (+)-civet cat compound. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.04.045] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
19
|
Lahiri R, Kokatla HP, Vankar YD. An improved method of ring closing metathesis in the presence of basic amines: application to the formal synthesis of (+)-lentiginosine and other piperidines and carbamino sugar analogs. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.12.020] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
20
|
Hernández-Torres G, Carreño MC, Urbano A, Colobert F. The Effect of Sulfoxides on the Stereoselective Construction of Tetrahydrofurans: Total Synthesis of (+)-Goniothalesdiol. Chemistry 2010; 17:1283-93. [DOI: 10.1002/chem.201002637] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2010] [Indexed: 11/09/2022]
|
21
|
Stereoselective and facile total synthesis of (+)-goniodiol, a styryllactone from carbohydrates. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.tetasy.2010.08.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
22
|
Kang B, Chang S, Decker S, Britton R. Regioselective and stereoselective cyclizations of chloropolyols in water: rapid synthesis of hydroxytetrahydrofurans. Org Lett 2010; 12:1716-9. [PMID: 20297827 DOI: 10.1021/ol100260z] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A concise, stereoselective synthesis of functionalized tetrahydrofuranols has been developed that involves heating readily available chloropolyols in water. These reactions are operationally straightforward and chemoselective for the formation of tetrahydrofurans, obviating the need for complicated protecting group strategies. The efficiency of this process is demonstrated in a short asymmetric synthesis of the natural product (+)-goniothalesdiol.
Collapse
Affiliation(s)
- Baldip Kang
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | | | | | | |
Collapse
|
23
|
Palík M, Karlubíková O, Lackovičová D, Lásiková A, Gracza T. Formal synthesis of (+)-varitriol. Application of Pd(II)/Cu(II)-catalysed bicyclisation of unsaturated polyols. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.04.074] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
24
|
Brichacek M, Batory L, Njardarson J. Stereoselective Ring Expansion of Vinyl Oxiranes: Mechanistic Insights and Natural Product Total Synthesis. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200906830] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
25
|
Brichacek M, Batory L, Njardarson J. Stereoselective Ring Expansion of Vinyl Oxiranes: Mechanistic Insights and Natural Product Total Synthesis. Angew Chem Int Ed Engl 2010; 49:1648-51. [DOI: 10.1002/anie.200906830] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
26
|
Olefin cross-metathesis based approach for the stereoselective total synthesis of (+)-cardiobutanolide. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.09.077] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|
27
|
Yadav JS, Madhava Rao B, Sanjeeva Rao K. Total synthesis of 8-methoxygoniodiol related compounds via chiron approach. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.tetasy.2009.05.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
28
|
Palík M, Karlubíková O, Lásiková A, Kožíšek J, Gracza T. Total Synthesis of (+)-Varitriol. European J Org Chem 2009. [DOI: 10.1002/ejoc.200801070] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
29
|
Stereoselective synthesis of muco-quercitol, (+)-gala-quercitol and 5-amino-5-deoxy-d-vibo-quercitol from d-mannitol. Tetrahedron 2008. [DOI: 10.1016/j.tet.2008.06.107] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
30
|
Enders D, Barbion J. Asymmetric Synthesis of (+)-Altholactone: A Styryllactone Isolated from VariousGoniothalamus Species. Chemistry 2008; 14:2842-9. [DOI: 10.1002/chem.200701647] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
31
|
|
32
|
Kapitán P, Gracza T. Stereocontrolled oxycarbonylation of 4-benzyloxyhepta-1,6-diene-3,5-diols promoted by chiral palladium(II) complexes. ACTA ACUST UNITED AC 2008. [DOI: 10.1016/j.tetasy.2007.12.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
33
|
Affiliation(s)
- John P. Wolfe
- Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI, 48109-1055
| | - Michael B. Hay
- Department of Chemistry, University of Michigan, 930 N. University Avenue, Ann Arbor, MI, 48109-1055
| |
Collapse
|
34
|
Hou XL, Yang Z, Yeung KS, Wong HN. Five–membered ring systems: furans and benzofurans. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/s0959-6380(07)80011-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
|
35
|
The structures of monensin A derivatives and its complexes with some monovalent cations studied by the AM1d, PM3 as well as PM5 semiempirical methods. J Mol Struct 2007. [DOI: 10.1016/j.molstruc.2006.04.043] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
36
|
Yadav VK, Agrawal D. Total syntheses of (+)-7-epi-goniofufurone, (+)-goniopypyrone and (+)-goniofufurone from a common precursor. Chem Commun (Camb) 2007:5232-4. [DOI: 10.1039/b713070h] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
37
|
Wolfe JP. Stereoselective Synthesis of Saturated Heterocycles via Pd-Catalyzed Alkene Carboetherification and Carboamination Reactions. European J Org Chem 2006; 2007:571-582. [PMID: 19183704 PMCID: PMC2633094 DOI: 10.1002/ejoc.200600767] [Citation(s) in RCA: 196] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2006] [Indexed: 11/11/2022]
Abstract
The development of Pd-catalyzed carboetherification and carboamination reactions between aryl/alkenyl halides and alkenes bearing pendant heteroatoms is described. These transformations effect the stereoselective construction of useful heterocycles such as tetrahydrofurans, pyrrolidines, imidazolidin-2-ones, isoxazolidines, and piperazines. The scope, limitations, and applications of these reactions are presented, and current stereochemical models are described. The mechanism of product formation, which involves an unusual intramolecular syn-insertion of an alkene into a Pd-Heteroatom bond is also discussed in detail.
Collapse
Affiliation(s)
- John P Wolfe
- University of Michigan, Department of Chemistry, 930 N. University Avenue, Ann Arbor, Michigan, 48109-1055
| |
Collapse
|
38
|
Abstract
Stereoselective synthesis of antitumor tetrahydrofuran (+)-goniothalesdiol was achieved in high overall yield from (-)-D-tartaric acid. Key features include an FeCl3 mediated THF formation with very high selectivity. Synthesis of natural gonithalesdiol and its analogue 2,5-bis-epi-goniothalesdiol was achieved from a common intermediate.
Collapse
Affiliation(s)
- Kavirayani R Prasad
- Department of Organic Chemistry, Indian Institute of Science, Bangalore 560012, India.
| | | |
Collapse
|
39
|
Carreño MC, Hernández-Torres G, Urbano A, Colobert F. Total Stereoselective Synthesis of (+)-Goniothalesdiol. Org Lett 2005; 7:5517-20. [PMID: 16288545 DOI: 10.1021/ol0523603] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] The stereoselective synthesis of (+)-goniothalesdiol (1) was accomplished in nine steps starting from commercially available (-)-(2S,3S)-dimethyl D-tartrate (3). The key features were a completely diastereoselective reduction of a beta-ketosulfoxide to generate the stereogenic center at C-5 in 7 and formation of the 2,5-cis-substituted tetrahydrofuran ring in 10 from a stereoselective Et(3)SiH/TMSOTf-promoted reductive cyclization/deoxygenation.
Collapse
Affiliation(s)
- M Carmen Carreño
- Departamento de Química Orgánica (C-I), Universidad Autónoma de Madrid, Cantoblanco, 28049-Madrid, Spain.
| | | | | | | |
Collapse
|
40
|
Yadav JS, Raju AK, Rao PP, Rajaiah G. Highly stereoselective synthesis of antitumor agents: both enantiomers of goniothales diol, altholactone, and isoaltholactone. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.tetasy.2005.08.047] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
41
|
Palladium-catalysed reactions of alcohols. Part D: Rearrangements, carbonylations, carboxylations and miscellaneous reactions. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.06.103] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
42
|
|