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Liu J, Chen X, Shen X, Wang Y, Wang X, Bi X. Silver‐Catalyzed Sequential Cascade Reaction of Isocyanides with 1‐(2‐Ethynyl‐phenyl)‐prop‐2‐yn‐1‐ol: Access to Benzo[
b
]fluorenes and Benzofuran‐Pyrroles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801344] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Jian‐Quan Liu
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xinyi Chen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xuanyu Shen
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Yihan Wang
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
| | - Xiang‐Shan Wang
- School of Chemistry and Materials Science, Jiangsu Key Laboratory of Green Synthesis for Functional MaterialsJiangsu Normal University, Xuzhou Jiangsu 221116 People's Republic of China
| | - Xihe Bi
- Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis, Department of ChemistryNortheast Normal University Changchun 130024 People's Republic of China
- State Key Laboratory of Elemento-Organic ChemistryNankai University Tianjin 300071 People's Republic of China
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You X, Xie X, Chen H, Li Y, Liu Y. Cyano-Schmittel Cyclization through Base-Induced Propargyl-Allenyl Isomerization: Highly Modular Synthesis of Pyridine-Fused Aromatic Derivatives. Chemistry 2015; 21:18699-705. [DOI: 10.1002/chem.201503374] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Indexed: 11/11/2022]
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Rettenmeier E, Hansmann MM, Ahrens A, Rübenacker K, Saboo T, Massholder J, Meier C, Rudolph M, Rominger F, Hashmi ASK. Insights into the Gold-Catalyzed Propargyl Ester Rearrangement/Tandem Cyclization Sequence: Radical versus Gold Catalysis-Myers-Saito- versus Schmittel-Type Cyclization. Chemistry 2015; 21:14401-9. [DOI: 10.1002/chem.201501725] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2015] [Indexed: 11/10/2022]
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Gonçalves TP, Mohamed M, Whitby RJ, Sneddon HF, Harrowven DC. Exploring Diradical Chemistry: A Carbon-Centered Radical May Act as either an Anion or Electrophile through an Orbital Isomer. Angew Chem Int Ed Engl 2015; 54:4531-4. [DOI: 10.1002/anie.201411334] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Indexed: 11/08/2022]
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Gonçalves TP, Mohamed M, Whitby RJ, Sneddon HF, Harrowven DC. Exploring Diradical Chemistry: A Carbon-Centered Radical May Act as either an Anion or Electrophile through an Orbital Isomer. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201411334] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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6
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Prek B, Bezenšek J, Kasunič M, Grošelj U, Svete J, Stanovnik B. Reactions of enaminones and related compounds with N,N-dimethylacetamide dimethyl acetal. A simple one-pot metal-free synthesis of polysubstituted benzene derivatives. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.02.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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7
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Mukherjee R, Mondal S, Basak A, Mallick D, Jemmis ED. Reactivity of Bispropargyl Sulfones under Basic Conditions: Interplay Between Garratt-Braverman and Schmittel/Myers-Saito Cyclization Pathway. Chem Asian J 2012; 7:957-65. [DOI: 10.1002/asia.201100903] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Indexed: 11/08/2022]
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9
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Maji M, Mallick D, Mondal S, Anoop A, Bag SS, Basak A, Jemmis ED. Selectivity in Garratt−Braverman Cyclization: An Experimental and Computational Study. Org Lett 2011; 13:888-91. [DOI: 10.1021/ol102861j] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manasi Maji
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Dibyendu Mallick
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Sayantan Mondal
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Anakuthil Anoop
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Subhendu Sekhar Bag
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Amit Basak
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
| | - Eluvathingal D. Jemmis
- Department of Chemistry, Indian Institute of Technology, Kharagpur 721 302, India, Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India, Department of Chemistry, Indian Institute of Technology, Guwahati India, and Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram, 695 016, Kerala, India
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Sakai S, Nishitani M. Theoretical Studies on Myers−Saito and Schmittel Cyclization Mechanisms of Hepta-1,2,4-triene-6-yne. J Phys Chem A 2010; 114:11807-13. [DOI: 10.1021/jp105860n] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shogo Sakai
- Department of Chemistry, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
| | - Misaki Nishitani
- Department of Chemistry, Faculty of Engineering, Gifu University, Yanagido, Gifu 501-1193, Japan
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Shen R, Chen L, Huang X. Facile Synthesis of Polycyclic Fluorene Derivativesviaa Palladium-Catalyzed Coupling, Propargyl-Allenyl Isomerization and Schmittel Cyclization Sequence. Adv Synth Catal 2009. [DOI: 10.1002/adsc.200900600] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Shahzad S, Wirth T. Fast Synthesis of Benzofluorenes by Selenium-Mediated Carbocyclizations. Angew Chem Int Ed Engl 2009; 48:2588-91. [DOI: 10.1002/anie.200806148] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Shahzad S, Wirth T. Schnelle Synthese von Benzofluorenen durch selenvermittelte Carbocyclisierungen. Angew Chem Int Ed Engl 2009. [DOI: 10.1002/ange.200806148] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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15
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Alabugin IV, Gilmore K, Patil S, Manoharan M, Kovalenko SV, Clark RJ, Ghiviriga I. Radical Cascade Transformations of Tris(o-aryleneethynylenes) into Substituted Benzo[a]indeno[2,1-c]fluorenes. J Am Chem Soc 2008; 130:11535-45. [DOI: 10.1021/ja8038213] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Igor V. Alabugin
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390 and Department of Chemistry, University of Florida, Gainesville, Florida, 32611-7200
| | - Kerry Gilmore
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390 and Department of Chemistry, University of Florida, Gainesville, Florida, 32611-7200
| | - Satish Patil
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390 and Department of Chemistry, University of Florida, Gainesville, Florida, 32611-7200
| | - Mariappan Manoharan
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390 and Department of Chemistry, University of Florida, Gainesville, Florida, 32611-7200
| | - Serguei V. Kovalenko
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390 and Department of Chemistry, University of Florida, Gainesville, Florida, 32611-7200
| | - Ronald J. Clark
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390 and Department of Chemistry, University of Florida, Gainesville, Florida, 32611-7200
| | - Ion Ghiviriga
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390 and Department of Chemistry, University of Florida, Gainesville, Florida, 32611-7200
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Lu YX, Zou JW, Wang HQ, Yu QS. Myers–Saito and Schmittel cyclizations of enyne-(hetero)-1,2,3-trienes: A DFT study on the structure–reactivity relationship. ACTA ACUST UNITED AC 2005. [DOI: 10.1016/j.theochem.2005.07.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Chen WC, Zou JW, Yu CH. Density functional study of the ring effect on the Myers-Saito cyclization and a comparison with the Bergman cyclization. J Org Chem 2003; 68:3663-72. [PMID: 12713376 DOI: 10.1021/jo0267246] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Myers-Saito cyclizations of a series of enyne-allenes and enyne-butatrienes have been studied by density functional methods. The pure DFT method, BPW91, in conjunction with the 6-311 basis set is demonstrated to be suitable to study these systems. Geometry optimizations and harmonic frequency calculations were applied for every reactant, transition structure, as well as product. It has been shown that the cyclic structure of reactant lowers significantly the critical distance and reaction barrier. For the Myers-Saito product of (5Z)-1,2,3,5-cyclononatetraen-7-yne (10R), the confinement of ring leads to an essential change of the biradical character from sigma-pi type to sigma-sigma type. The through-bond coupling is therefore involved in this product as in the Bergman products. With the enlargement of the ring, the geometrical distortion weakens the through-bond coupling and raises the stability of the products. As a consequence, 1,5-didehydroindene (10P) presents a particularly long critical distance and lower thermodynamic stability. Detailed comparisons of the reactivities of 10R, (Z)-1-cyclononene-3,8-diyne (13R), and (Z)-1-cyclodecene-3,9-diyne (14R) that represent the core structure of a category of natural antitumor drugs have also been made. It reveals that the reactivity of these three systems is quite similar, despite the fact that the thermochemical properties of the prototypical Myers-Saito and Bergman cyclizations are significantly different from each other.
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Affiliation(s)
- Wei-Chen Chen
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
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Prall M, Wittkopp A, Schreiner PR. Can Fulvenes Form from Enediynes? A Systematic High-Level Computational Study on Parent and Benzannelated Enediyne and Enyne−Allene Cyclizations. J Phys Chem A 2001. [DOI: 10.1021/jp0028002] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Matthias Prall
- Institut für Organische Chemie der Georg-August-Universität, Tammannstr. 2, 37077 Göttingen, Germany, and Computational Center for Molecular Structure and Design, Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556
| | - Alexander Wittkopp
- Institut für Organische Chemie der Georg-August-Universität, Tammannstr. 2, 37077 Göttingen, Germany, and Computational Center for Molecular Structure and Design, Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556
| | - Peter R. Schreiner
- Institut für Organische Chemie der Georg-August-Universität, Tammannstr. 2, 37077 Göttingen, Germany, and Computational Center for Molecular Structure and Design, Department of Chemistry, University of Georgia, Athens, Georgia 30602-2556
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Abstract
The first elimination reactions of silyl enol ethers to lithiated allenes are reported. These reactions allow a direct transformation of readily available silyl enol ethers into functionalized allenes. The action of three to four equivalents of lithium diisopropylamide (LDA) on silyl enol ethers results in the formation of lithiated allenes by initial allylic lithiation, subsequent elimination of a lithium silanolate, and finally, lithiation of the allene thus formed. Starting with amide-derived silyl imino ethers, lithiated ketenimines are obtained. A variety of reactions of the lithiated allenes with electrophiles (chlorosilanes, trimethylchlorostannane, dimethyl sulfate and ethanol) were carried out. Elimination of silanolate is observed only for substrates that contain the hindered SiMe2tBu or Si(iPr)3 moiety, but not for the SiMe3 group. The reaction of 1,1-dilithio-3,3-diphenylallene with ketones provides a convenient access to novel 1,1-di(hydroxymethyl)allenes which undergo a domino Nazarov-Friedel-Crafts reaction upon treatment with p-toluenesulfonic acid.
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Affiliation(s)
- P Langer
- Institut für Organische Chemie der Georg-August-Universität Göttingen, Germany.
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Schmittel M, Rodríguez D, Steffen JP. A Highly Efficient Triplet Analogue of a Thermal Biradical Cyclization—The Photochemical C2–C6 Cyclization of Enyne-Heteroallenes. Angew Chem Int Ed Engl 2000. [DOI: 10.1002/1521-3757(20000616)112:12<2236::aid-ange2236>3.0.co;2-d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Schreiner PR, Prall M. Myers−Saito versus C2−C6(“Schmittel”) Cyclizations of Parent and Monocyclic Enyne−Allenes: Challenges to Chemistry and Computation. J Am Chem Soc 1999. [DOI: 10.1021/ja991282+] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Schmittel M, Strittmatter M. Cyclization of carbonyl substituted enyne-allenes: C2-C6-cyclization induced by heat or by addition of samarium(II) iodide, samarium(III) chloride, or boron trifluoride. Tetrahedron 1998. [DOI: 10.1016/s0040-4020(98)00847-3] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Schmittel M, Steffen JP, Engels B, Lennartz C, Hanrath M. Zwei neue thermische Diradikal-Cyclisierungen in Theorie und Experiment: neue Syntheserouten zu 6H-Indolo[2,3-b]chinolinen und 2-Aminochinolinen aus Enincarbodiimiden. Angew Chem Int Ed Engl 1998. [DOI: 10.1002/(sici)1521-3757(19980904)110:17<2531::aid-ange2531>3.0.co;2-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Engels B, Lennartz C, Hanrath M, Schmittel M, Strittmatter M. Regioselektivität der Diradikal-Cyclisierung von Eninallenen: Einfluß der Substituenten auf den Wechsel von der Myers-Saito- zur C2-C6-Cyclisierung. Angew Chem Int Ed Engl 1998. [DOI: 10.1002/(sici)1521-3757(19980703)110:13/14<2067::aid-ange2067>3.0.co;2-p] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Engels B, Hanrath M. A Theoretical Comparison of Two Competing Diradical Cyclizations in Enyne-Allenes: The Myers−Saito and the Novel C2−C6 Cyclization. J Am Chem Soc 1998. [DOI: 10.1021/ja973051d] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- B. Engels
- Contribution from the Institut für Physikalische und Theoretische Chemie, Universität Bonn, Wegelerstrasse 12, 53115 Bonn, Germany
| | - M. Hanrath
- Contribution from the Institut für Physikalische und Theoretische Chemie, Universität Bonn, Wegelerstrasse 12, 53115 Bonn, Germany
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Schmittel M, Steffen JP, Wencesla Ángel M, Engels B, Lennartz C, Hanrath M. Zwei neue thermische Diradikal- Cyclisierungen von Eninketeniminen: Theorie, Experiment und Synthesepotential. Angew Chem Int Ed Engl 1998. [DOI: 10.1002/(sici)1521-3757(19980605)110:11<1633::aid-ange1633>3.0.co;2-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Altmann M, Roidl G, Enkelmann V, Bunz UHF. Eine rekonstitutive Bergman-Umlagerung: Synthese eines CpCo-komplexierten, tetraethinylierten Cyclobutadiens. Angew Chem Int Ed Engl 1997. [DOI: 10.1002/ange.19971091016] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Schmittel M, Keller M, Kiau S, Strittmatter M. A Surprising Switch from the Myers–Saito Cyclization to a Novel Biradical Cyclization in Enyne–Allenes: Formal Diels–Alder and Ene Reactions with High Synthetic Potential. Chemistry 1997. [DOI: 10.1002/chem.19970030521] [Citation(s) in RCA: 91] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Schmittel M, Kiau S. Thermal and Electron Transfer Induced Reactions of Enediynes and Enyne-Allenes, 5. First Isolation of Two Rotamers About the PC Bond in a Phosphane Oxide. ACTA ACUST UNITED AC 1997. [DOI: 10.1002/jlac.199719970415] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Schmittel M, Kiau S, Siebert T, Strittmatter M. Steric effects in enyne-allene thermolyses: Switch from the Myers-Saito reaction to the C2C6-cyclization and DNA strand cleavage. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01758-3] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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