51
|
Pellissier H. Recent Developments in Enantioselective Nickel(II)-Catalyzed Conjugate Additions. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500512] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
|
52
|
Evaluation of magnetically recyclable nano-Fe3O4 as a green catalyst for the synthesis of mono- and bis-tetrahydro-4H-chromene and mono and bis 1,4-dihydropyridine derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2015. [DOI: 10.1007/s11164-015-2220-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
53
|
Gezegen H, Ceylan M. Alternate Method for the Synthesis of Six-Membered Carbocycles with Five Stereocenters: 1,2,3,4,6-Pentasubstituted-4-hydroxy-cyclohexanes. SYNTHETIC COMMUN 2015. [DOI: 10.1080/00397911.2015.1080845] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
54
|
Bera S, Mondal D, Martin JT, Singh M. Potential effect of ultrasound on carbohydrates. Carbohydr Res 2015; 410:15-35. [DOI: 10.1016/j.carres.2015.02.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2014] [Revised: 02/20/2015] [Accepted: 02/21/2015] [Indexed: 10/23/2022]
|
55
|
Germain N, Alexakis A. Formation of Contiguous Quaternary and Tertiary Stereocenters by Sequential Asymmetric Conjugate Addition of Grignard Reagents to 2-Substituted Enones and Mg-Enolate Trapping. Chemistry 2015; 21:8597-606. [DOI: 10.1002/chem.201500292] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Indexed: 11/11/2022]
|
56
|
Beemelmanns C, Reissig HU. Evolution of a Short Route to Strychnine by Using the Samarium-Diiodide-Induced Cascade Cyclization as a Key Step. Chemistry 2015; 21:8416-25. [DOI: 10.1002/chem.201500094] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Indexed: 01/15/2023]
|
57
|
Behr A, Vorholt AJ, Seidensticker T. An Old Friend in a New Guise-Recent Trends in Homogeneous Transition Metal Catalysis. CHEMBIOENG REVIEWS 2015. [DOI: 10.1002/cben.201400034] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
58
|
Morofuji T, Shimizu A, Yoshida J. Electrochemical Intramolecular CH Amination: Synthesis of Benzoxazoles and Benzothiazoles. Chemistry 2015; 21:3211-4. [DOI: 10.1002/chem.201406398] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Indexed: 01/23/2023]
Affiliation(s)
- Tatsuya Morofuji
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo‐ku, Kyoto 615‐8510 (Japan)
| | - Akihiro Shimizu
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo‐ku, Kyoto 615‐8510 (Japan)
| | - Jun‐ichi Yoshida
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo‐ku, Kyoto 615‐8510 (Japan)
| |
Collapse
|
59
|
Chandrasekhara Rao L, Satish Kumar N, Jagadeesh Babu N, Meshram HM. Reinvestigation of the reaction between 1,3-diketones and 2-hydroxyarylaldehydes: a short, atom-economical entry to tetrahydroxanthenones. RSC Adv 2015. [DOI: 10.1039/c5ra10675c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
A short and facile access to novel functionalized tetrahydroxanthenonesviaa DABCO-promoted tandem Knoevenagel condensation/hemiketalisation process from easily accessible substrates in a high yield.
Collapse
Affiliation(s)
- L. Chandrasekhara Rao
- Medicinal Chemistry and Pharmacology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad–500 007
- India
| | - N. Satish Kumar
- Medicinal Chemistry and Pharmacology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad–500 007
- India
| | - N. Jagadeesh Babu
- Laboratory of X-ray Crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad–500 007
- India
| | - H. M. Meshram
- Medicinal Chemistry and Pharmacology Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad–500 007
- India
| |
Collapse
|
60
|
Tietze LF, Clerc J, Biller S, Duefert SC, Bischoff M. Enantioselective total synthesis of the lignan (+)-linoxepin. Chemistry 2014; 20:17119-24. [PMID: 25345835 DOI: 10.1002/chem.201404679] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Indexed: 11/08/2022]
Abstract
An enantioselective total synthesis of the natural (+)-linoxepin (1) was accomplished in eleven steps from bromovanin (24). Key steps are a domino carbopalladation/ Mizoroki-Heck reaction with the formation of a pentacyclic system, an asymmetric hydroboration as well as an oxidative lactonization.
Collapse
Affiliation(s)
- Lutz F Tietze
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen (Germany).
| | | | | | | | | |
Collapse
|
61
|
|
62
|
Laha JK, Dayal N, Jain R, Patel K. Palladium-Catalyzed Regiocontrolled Domino Synthesis of N-Sulfonyl Dihydrophenanthridines and Dihydrodibenzo[c,e]azepines: Control over the Formation of Biaryl Sultams in the Intramolecular Direct Arylation. J Org Chem 2014; 79:10899-907. [DOI: 10.1021/jo501910q] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Joydev K. Laha
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Neetu Dayal
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Roli Jain
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Ketul Patel
- Department of Pharmaceutical
Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| |
Collapse
|
63
|
Moni L, Denissen M, Valentini G, Müller TJJ, Riva R. Diversity-oriented synthesis of intensively blue emissive 3-hydroxyisoquinolines by sequential Ugi four-component reaction/reductive Heck cyclization. Chemistry 2014; 21:753-62. [PMID: 25369792 DOI: 10.1002/chem.201404209] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 11/09/2022]
Abstract
A convergent approach to highly functionalized 3-hydroxyisoquinolines is reported. The key steps are an Ugi multicomponent reaction and a subsequent intramolecular reductive Heck reaction; these can also be performed as a one-pot procedure. The structures display very interesting properties as blue-fluorescence emitters. Photophysical studies on the absorption and static fluorescence indicate that the substitution pattern on the pyridyl part influences the optical properties only to a minor extent, unless the amide substituent becomes sterically demanding and leads to significant nonradiative deactivation. The donor substitution on the benzo core considerably enhances the fluorescence quantum yields and trimethoxy substitution causes a pronounced redshift of the emission bands. Protonation of the isoquinolyl nitrogen atom causes efficient static quenching of the fluorescence.
Collapse
Affiliation(s)
- Lisa Moni
- Dipartimento di Chimica e Chimica Industriale, University of Genova, Via Dodecaneso 31, 16146 Genova (Italy)
| | | | | | | | | |
Collapse
|
64
|
Sajitha LU, Sithambaresan M, Jacob JP, Kurup MRP. Crystal structure of (4-chloro-phen-yl)[2-(10-hy-droxy-phenanthren-9-yl)phenanthro[9,10-b]furan-3-yl]methanone. Acta Crystallogr Sect E Struct Rep Online 2014; 70:355-8. [PMID: 25484744 PMCID: PMC4257253 DOI: 10.1107/s1600536814022338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 10/10/2014] [Indexed: 11/12/2022]
Abstract
Molecules of the title compound are arranged in the solid state in a three-dimensional supramolecular architecture via intermolecular O—H⋯O and C—H⋯O hydrogen bonding and through C—H⋯π interactions. In the title compound, C37H21ClO3, the dihedral angle between the two phenanthrene moieties is 57.79 (5)°. The furan and one of the phenanthrene groups are fused in an almost coplanar arrangement [dihedral angle = 5.14 (8)°] and the furan unit makes dihedral angles of 70.27 (11) and 57.58 (8)° with the planes of the phenyl and the second phenanthrene group, respectively. In the crystal, neighbouring molecules are connected via two intermolecular hydrogen-bonding interactions (O—H⋯O and C—H⋯O) towards the carbonyl O atom with donor–acceptor distances of 2.824 (2) and 3.277 (3) Å, creating an inversion dimer. A non-classical C—H⋯Cl interaction [3.564 (2) Å] and three C—H⋯π interactions, with C⋯π distances of 3.709 (3), 3.745 (2) and 3.628 (3) Å, connect the molecules, forming a three-dimensional supramolecular architecture in the solid state.
Collapse
Affiliation(s)
- L U Sajitha
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India
| | - M Sithambaresan
- Department of Chemistry, Faculty of Science, Eastern University, Chenkalady, Sri Lanka
| | - Jomon P Jacob
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi 682 022, India
| | | |
Collapse
|
65
|
Abaszadeh M, Seifi M. Crown ether complex cation ionic liquids (CECILs) as environmentally benign catalysts for three-component synthesis of 4,5-dihydropyrano[3,2-c]chromene and 4,5-dihydropyrano[4,3-b]pyran derivatives. RESEARCH ON CHEMICAL INTERMEDIATES 2014. [DOI: 10.1007/s11164-014-1855-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
66
|
Fang X, Jackstell R, Börner A, Beller M. Domino Hydroformylation/Aldol Condensation/Hydrogenation Catalysis: Highly Selective Synthesis of Ketones from Olefins. Chemistry 2014; 20:15692-6. [DOI: 10.1002/chem.201404294] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Indexed: 11/07/2022]
|
67
|
Hemelaere R, Carreaux F, Carboni B. Cross-Metathesis/Isomerization/Allylboration Sequence for a Diastereoselective Synthesis ofAnti-Homoallylic Alcohols from Allylbenzene Derivatives and Aldehydes. Chemistry 2014; 20:14518-23. [DOI: 10.1002/chem.201403954] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Indexed: 11/10/2022]
|
68
|
Kim BS, Hussain MM, Hussain N, Walsh PJ. Palladium-catalyzed chemoselective allylic substitution, Suzuki-Miyaura cross-coupling, and allene formation of bifunctional 2-B(pin)-substituted allylic acetate derivatives. Chemistry 2014; 20:11726-39. [PMID: 25077980 PMCID: PMC4219321 DOI: 10.1002/chem.201402353] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Indexed: 11/11/2022]
Abstract
A formidable challenge at the forefront of organic synthesis is the control of chemoselectivity to enable the selective formation of diverse structural motifs from a readily available substrate class. Presented herein is a detailed study of chemoselectivity with palladium-based phosphane catalysts and readily available 2-B(pin)-substituted allylic acetates, benzoates, and carbonates. Depending on the choice of reagents, catalysts, and reaction conditions, 2-B(pin)-substituted allylic acetates and derivatives can be steered into one of three reaction manifolds: allylic substitution, Suzuki-Miyaura cross-coupling, or elimination to form allenes, all with excellent chemoselectivity. Studies on the chemoselectivity of Pd catalysts in their reactivity with boron-bearing allylic acetate derivatives led to the development of diverse and practical reactions with potential utility in synthetic organic chemistry.
Collapse
Affiliation(s)
- Byeong-Seon Kim
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S. 34 Street, Philadelphia, PA 19104-6323, USA, Fax: +12155736743, Tel: +12155732875
| | - Mahmud M. Hussain
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S. 34 Street, Philadelphia, PA 19104-6323, USA, Fax: +12155736743, Tel: +12155732875
| | - Nusrah Hussain
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S. 34 Street, Philadelphia, PA 19104-6323, USA, Fax: +12155736743, Tel: +12155732875
| | - Patrick J. Walsh
- P. Roy and Diana T. Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, 231 S. 34 Street, Philadelphia, PA 19104-6323, USA, Fax: +12155736743, Tel: +12155732875
| |
Collapse
|
69
|
Domino-Hydroformylation/Aldol Condensation Catalysis: Highly Selective Synthesis of α,β-Unsaturated Aldehydes from Olefins. Chemistry 2014; 20:13210-6. [DOI: 10.1002/chem.201403302] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2014] [Indexed: 11/07/2022]
|
70
|
Tietze LF, Eichhorst C, Hungerland T, Steinert M. A Fast Way to Fluorescence: A Fourfold Domino Reaction to Condensed Polycyclic Compounds. Chemistry 2014; 20:12553-8. [DOI: 10.1002/chem.201402961] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Indexed: 12/24/2022]
|
71
|
|
72
|
Jones AC, May JA, Sarpong R, Stoltz BM. Toward a symphony of reactivity: cascades involving catalysis and sigmatropic rearrangements. Angew Chem Int Ed Engl 2014; 53:2556-91. [PMID: 24677683 PMCID: PMC4030764 DOI: 10.1002/anie.201302572] [Citation(s) in RCA: 180] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Indexed: 11/10/2022]
Abstract
Catalysis and synthesis are intimately linked in modern organic chemistry. The synthesis of complex molecules is an ever evolving area of science. In many regards, the inherent beauty associated with a synthetic sequence can be linked to a certain combination of the creativity with which a sequence is designed and the overall efficiency with which the ultimate process is performed. In synthesis, as in other endeavors, beauty is very much in the eyes of the beholder. It is with this in mind that we will attempt to review an area of synthesis that has fascinated us and that we find extraordinarily beautiful, namely the combination of catalysis and sigmatropic rearrangements in consecutive and cascade sequences.
Collapse
Affiliation(s)
- Amanda C. Jones
- Chemistry Department, Wake Forest University Box 7486, Winston Salem, NC 27109 (USA)
| | - Jeremy A. May
- Department of Chemistry, University of Houston Houston, TX 77204-5003 (USA)
| | - Richmond Sarpong
- Department of Chemistry, University of California Berkeley, CA 94720 (USA)
| | - Brian M. Stoltz
- Department of Chemistry and Chemical Engineering, California Institute of Technology MC 101-20, Pasadena CA 91125 (USA)
| |
Collapse
|
73
|
Jones AC, May JA, Sarpong R, Stoltz BM. Bis hin zu einer Symphonie der Reaktivität: Kaskaden mit Katalysen und sigmatropen Umlagerungen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201302572] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
|
74
|
Jeena V, Robinson RS. Recent developments in one-pot tandem oxidation process coupling reactions. RSC Adv 2014. [DOI: 10.1039/c4ra06169a] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The recent additions to the tandem oxidation process (TOP) research area are reviewed.
Collapse
Affiliation(s)
- Vineet Jeena
- Department of Chemistry
- University of KwaZulu-Natal
- Pietermaritzburg, South Africa
| | - Ross S. Robinson
- Department of Chemistry
- University of KwaZulu-Natal
- Pietermaritzburg, South Africa
| |
Collapse
|
75
|
F. Tietze L, Ma L, Jackenkroll S, R. Reiner J, Hierold J, Gnanaprakasam B, Heidemann S. The Paecilin Puzzle ‒ Enantioselective Synthesis of the Proposed Structures of Paecilin A and B. HETEROCYCLES 2014. [DOI: 10.3987/com-13-s(s)68] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
76
|
Poudel TN, Lee YR. An advanced and novel one-pot synthetic method for diverse benzo[c]chromen-6-ones by transition-metal free mild base-promoted domino reactions of substituted 2-hydroxychalcones with β-ketoesters and its application to polysubstituted terphenyls. Org Biomol Chem 2014; 12:919-30. [DOI: 10.1039/c3ob41800f] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel one-pot syntheses of a variety of benzo[c]chromen-6-one derivatives were accomplished by Cs2CO3-promoted reactions of 2-hydroxychalcones.
Collapse
Affiliation(s)
- Tej Narayan Poudel
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749, Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan 712-749, Republic of Korea
| |
Collapse
|
77
|
Bakthadoss M, Devaraj A, Kannan D. Multicomponent Cascade Assembly for Quinolinopyranpyrazole Architectures. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301422] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
|
78
|
Hao WJ, Wang JQ, Xu XP, Zhang SL, Wang SY, Ji SJ. I2/O2-promoted domino reactions of isatins or 3-hydroxyindolin-2-one derivatives with enaminones. J Org Chem 2013; 78:12362-73. [PMID: 24295532 DOI: 10.1021/jo401773j] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
I2-promoted domino reactions of isatins or 3-hydroxyindolin-2-one derivatives with enaminones under O2 conditions have been established. The reactions of isatins with enaminones afforded functionalized tetracyclic pyrrolo[2,3,4-kl]acridine derivatives in moderate to good yields through domino cyclization and C-H oxidation. The reactions of 3-hydroxyindolin-2-one derivatives with enaminones proceeded well to give functionalized pyrrolo[2,3,4-kl]acridine derivatives via tandem ring-opening/recyclization/methyl migration sequences with two C-C bonds cleaved.
Collapse
Affiliation(s)
- Wen-Juan Hao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, ‡College of Pharmaceutical Sciences, Soochow University , Suzhou 215123, China
| | | | | | | | | | | |
Collapse
|
79
|
Gu ZY, Zhu TH, Cao JJ, Xu XP, Wang SY, Ji SJ. Palladium-Catalyzed Cascade Reactions of Isocyanides with Enaminones: Synthesis of 4-Aminoquinoline Derivatives. ACS Catal 2013. [DOI: 10.1021/cs400904t] [Citation(s) in RCA: 82] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Zheng-Yang Gu
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Tong-Hao Zhu
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Jia-Jia Cao
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Xiao-Ping Xu
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Shun-Yi Wang
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Shun-Jun Ji
- Key Laboratory of Organic
Synthesis of Jiangsu Province, College of Chemistry,
Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| |
Collapse
|
80
|
Synthesis of 2,8-Dioxabicyclo[3.3.1]nonane Derivatives via a Sequential Knoevenagel Condensation and Hetero-Diels–Alder Reaction in an Aqueous Medium. J Org Chem 2013; 78:11612-7. [DOI: 10.1021/jo401990h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
81
|
Lee HJ, Cho CW. Asymmetric Synthesis of Chiral Pyrrolizine-Based Triheterocycles by Organocatalytic Cascade Aza-Michael-Aldol Reactions. European J Org Chem 2013. [DOI: 10.1002/ejoc.201301260] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
|
82
|
Hao WJ, Wang SY, Ji SJ. Iodine-Catalyzed Cascade Formal [3 + 3] Cycloaddition Reaction of Indolyl Alcohol Derivatives with Enaminones: Constructions of Functionalized Spirodihydrocarbolines. ACS Catal 2013. [DOI: 10.1021/cs400703u] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Wen-Juan Hao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College
of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
| |
Collapse
|
83
|
|
84
|
Organocatalytic formal [5+1] annulation: diastereoselective cascade synthesis of functionalized six-membered spirocyclic indane-1,3-diones/oxindoles via Michael–aldol reaction. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.07.084] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
|
85
|
Shastri SL, Chougala BM, Kulkarni MV, Shastri LA. Efficient and Convenient Synthesis of 1,4-Benzoxazines, 1,4-Benzothiazines, Spiro-1,4-benzoxazines, and Spiro-1,4-benzothiazines. SYNTHETIC COMMUN 2013. [DOI: 10.1080/00397911.2012.714829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
86
|
Toppino A, Arru P, Bianco N, Prandi C, Venturello P, Deagostino A. Synthesis of Highly Functionalised Dihydrobenzofurans and Indolines by Palladium-Catalysed Mizoroki-Heck-Heteroannulation Cascade Reactions of Alkoxy-1,3-dienes. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300972] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
87
|
Shimizu M, Hiyama T. Palladium-Catalyzed Double Cross-Coupling Reactions of Organodimetallic Reagents Leading to Polycyclic Aromatic Hydrocarbons. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300632] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
88
|
Soengas RG, Silva AMS. Domino Reaction of Iodoglycosides: Synthesis of Carbohydrate-Based Nitroalkenes. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300362] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
89
|
Hsiao CC, Liao HH, Sugiono E, Atodiresei I, Rueping M. Shedding Light on Organocatalysis-Light-Assisted Asymmetric Ion-Pair Catalysis for the Enantioselective Hydrogenation of Pyrylium Ions. Chemistry 2013; 19:9775-9. [DOI: 10.1002/chem.201300766] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 02/26/2013] [Indexed: 11/08/2022]
|
90
|
Nakamura I, Kudo Y, Terada M. Oxazepine Synthesis by Copper-Catalyzed Intermolecular Cascade Reactions between O-Propargylic Oximes and Dipolarophiles. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201302751] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
91
|
Nakamura I, Kudo Y, Terada M. Oxazepine Synthesis by Copper-Catalyzed Intermolecular Cascade Reactions between O-Propargylic Oximes and Dipolarophiles. Angew Chem Int Ed Engl 2013; 52:7536-9. [DOI: 10.1002/anie.201302751] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2013] [Indexed: 11/11/2022]
|
92
|
Lepore AJ, Pinkerton DM, Ashfeld BL. Relay Redox and Lewis Acid Catalysis in the Titanocene- Catalyzed Multicomponent Assembly of 1,5-Enynes. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300359] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
93
|
Tietze LF, Ma L, Reiner JR, Jackenkroll S, Heidemann S. Enantioselective total synthesis of (-)-blennolide A. Chemistry 2013; 19:8610-4. [PMID: 23649592 DOI: 10.1002/chem.201300479] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2013] [Indexed: 11/12/2022]
Abstract
Blennolide A can be synthesized through an enantioselective domino-Wacker/carbonylation/methoxylation reaction of 7a with 96 % ee and an enantioselective Wacker oxidation of 7b with 89 % ee. Further transformations led to the α,β-unsaturated ester (E)-17, which was subjected to a highly selective Michael addition, introducing a methyl group to give 18a. After a threefold oxidation and an intramolecular acylation, the tetrahydroxanthenone 4 was obtained, which could be transformed into (-)-blennolide A (ent-1) in a few steps.
Collapse
Affiliation(s)
- Lutz F Tietze
- Institute of Organic and Biomolecular Chemistry, Georg-August-University Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany.
| | | | | | | | | |
Collapse
|
94
|
Kanbayashi N, Takenaka K, Okamura TA, Onitsuka K. Asymmetric auto-tandem catalysis with a planar-chiral ruthenium complex: sequential allylic amidation and atom-transfer radical cyclization. Angew Chem Int Ed Engl 2013; 52:4897-901. [PMID: 23553818 DOI: 10.1002/anie.201300485] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Naoya Kanbayashi
- Department of Macromolecular Science, Graduate School of Science, Osaka University, Machikaneyama 1-1, Toyonaka, Osaka 560-0043, Japan
| | | | | | | |
Collapse
|
95
|
Lechel T, Pfrengle F, Reissig HU, Zimmer R. Three Carbons for Complexity! Recent Developments of Palladium-Catalyzed Reactions of Allenes. ChemCatChem 2013. [DOI: 10.1002/cctc.201200875] [Citation(s) in RCA: 112] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
96
|
Reimann S, Knöpke LR, Spannenberg A, Brückner A, Kühn O, Langer P, Bentrup U. Identification of reaction intermediates in AlCl3-mediated cyclocondensation reactions by simultaneous in situ ATR-FTIR and UV–vis spectroscopy. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.01.097] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
97
|
Kanbayashi N, Takenaka K, Okamura TA, Onitsuka K. Asymmetric Auto-Tandem Catalysis with a Planar-Chiral Ruthenium Complex: Sequential Allylic Amidation and Atom-Transfer Radical Cyclization. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201300485] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
|
98
|
Shimoda Y, Kubo T, Sugiura M, Kotani S, Nakajima M. Stereoselective synthesis of multiple stereocenters by using a double aldol reaction. Angew Chem Int Ed Engl 2013; 52:3461-4. [PMID: 23418113 DOI: 10.1002/anie.201209848] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Yasushi Shimoda
- Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-honmachi, Chuo-ku, Kumamoto 862-0973, Japan
| | | | | | | | | |
Collapse
|
99
|
Shimoda Y, Kubo T, Sugiura M, Kotani S, Nakajima M. Stereoselective Synthesis of Multiple Stereocenters by Using a Double Aldol Reaction. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209848] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
100
|
Tietze LF, Jackenkroll S, Raith C, Spiegl DA, Reiner JR, Ochoa Campos MC. Enantioselective Total Synthesis of (−)-Diversonol. Chemistry 2013; 19:4876-82. [DOI: 10.1002/chem.201204037] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2012] [Indexed: 11/08/2022]
|