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Zhang Y, Chen J, Huang H. Radical Brook Rearrangements: Concept and Recent Developments. Angew Chem Int Ed Engl 2022; 61:e202205671. [DOI: 10.1002/anie.202205671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Ying Zhang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Jun‐Jie Chen
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
| | - Huan‐Ming Huang
- School of Physical Science and Technology ShanghaiTech University Shanghai 201210 P. R. China
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Zhang Y, Chen JJ, Huang HM. Radical Brook Rearrangement: Concept and Recent Developments. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202205671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ying Zhang
- ShanghaiTech University School of Physical Science and Technology CHINA
| | - Jun-Jie Chen
- ShanghaiTech University School of Physical Science and Technology CHINA
| | - Huan-Ming Huang
- ShanghaiTech University School of Physical Science and Technology 393 Middle Huaxia RoadPudong 201210 Shanghai CHINA
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Wu X, Ma Z, Feng T, Zhu C. Radical-mediated rearrangements: past, present, and future. Chem Soc Rev 2021; 50:11577-11613. [PMID: 34661216 DOI: 10.1039/d1cs00529d] [Citation(s) in RCA: 72] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Rearrangement reactions, one of the most significant transformations in organic chemistry, play an irreplaceable role in improving synthetic efficiency and molecular complexity. Concomitant cleavage and reconstruction of chemical bonds can display the great artistry and the glamour of synthetic chemistry. Over the past century, ionic rearrangement reactions, in particular those involving cationic pathways, have represented most of the research. Alongside the renaissance of radical chemistry, radical-mediated rearrangements have recently seen a rapid increase of attention from the chemical community. Many new radical rearrangements that extensively reveal the migratory behaviour of functional groups have been unveiled in the last decade. This Review provides a comprehensive perspective on the area from the past to present achievements, and brings up the prospects that may inspire colleagues to develop more useful synthetic tools based on radical rearrangements.
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Affiliation(s)
- Xinxin Wu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China.
| | - Zhigang Ma
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China.
| | - Tingting Feng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China.
| | - Chen Zhu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China. .,Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, China
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Zhu Z, Chen X, Liu S, Zhang J, Shen X. Synthesis of 1‐Tri(di)fluoromethyl 1,4‐Diketones Enabled by Radical Brook Rearrangement. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100860] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhihong Zhu
- The Institute for Advanced Studies Engineering Research Center of Organosilicon Compounds & Materials Ministry of Education Wuhan University Wuhan 430072 China
| | - Xiang Chen
- The Institute for Advanced Studies Engineering Research Center of Organosilicon Compounds & Materials Ministry of Education Wuhan University Wuhan 430072 China
| | - Shanshan Liu
- The Institute for Advanced Studies Engineering Research Center of Organosilicon Compounds & Materials Ministry of Education Wuhan University Wuhan 430072 China
| | - Jianjun Zhang
- State Key Laboratory of Fluorinated Greenhouse Gases Replacement and Control Treatment Zhejiang Research Institute of Chemical Industry Hangzhou 310023 China
| | - Xiao Shen
- The Institute for Advanced Studies Engineering Research Center of Organosilicon Compounds & Materials Ministry of Education Wuhan University Wuhan 430072 China
- Shenzhen Research Institute of Wuhan University Wuhan University Shenzhen 518057 China
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Wu B, Zhu R. Radical Philicity Inversion in Co- and Fe-Catalyzed Hydrogen-Atom-Transfer-Initiated Cyclizations of Unsaturated Acylsilanes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04774] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Bin Wu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Rong Zhu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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Affiliation(s)
- Tai-Ni Lu
- Department of Chemistry, Fu Jen Catholic University, 510 Zhongzheng Road, Xinzhuang
District, New Taipei City 24205, Taiwan Republic of China
| | - Che-Chien Chang
- Department of Chemistry, Fu Jen Catholic University, 510 Zhongzheng Road, Xinzhuang
District, New Taipei City 24205, Taiwan Republic of China
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Chien LA, Chang CC. Radical Cyclization Followed by the Fragmentation of Carbonyl Compounds: Effect of an α-Benzoyl Group. J Org Chem 2015; 80:11294-301. [DOI: 10.1021/acs.joc.5b01754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Li-An Chien
- Department
of Chemistry, Fu Jen Catholic University, 510 Zhongzheng Road, Xinzhuang
District, New Taipei City 24205, Taiwan, Republic of China
| | - Che-Chien Chang
- Department
of Chemistry, Fu Jen Catholic University, 510 Zhongzheng Road, Xinzhuang
District, New Taipei City 24205, Taiwan, Republic of China
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Tsai YM, Ke BW. Radical-Induced Ring Opening of Epoxysilane in the Synthesis of (±)-Supinidine and (±)-Trachelanthamidine. J CHIN CHEM SOC-TAIP 2013. [DOI: 10.1002/jccs.199300102] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Zhang HJ, Priebbenow DL, Bolm C. Acylsilanes: valuable organosilicon reagents in organic synthesis. Chem Soc Rev 2013; 42:8540-71. [DOI: 10.1039/c3cs60185d] [Citation(s) in RCA: 168] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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10
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Hsu NY, Chang CC. A Unique Synthetic Method to Convert aD-Sugar into 2-Deoxy-L-ribitol Through Carbonyl Translocation. European J Org Chem 2012. [DOI: 10.1002/ejoc.201201489] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Maddess ML, Tackett MN, Ley SV. Total synthesis studies on macrocyclic pipecolic acid natural products: FK506, the antascomicins and rapamycin. PROGRESS IN DRUG RESEARCH. FORTSCHRITTE DER ARZNEIMITTELFORSCHUNG. PROGRES DES RECHERCHES PHARMACEUTIQUES 2008; 66:13, 15-186. [PMID: 18416305 DOI: 10.1007/978-3-7643-8595-8_2] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
This chapter derives its inspiration from the challenges presented to total synthesis chemists, by a particular group of macrocyclic pipecolic acid natural products. Although there is considerable emphasis on the completed syntheses of the main characters (FK506 (1), the antascomycins (4 and 5) and rapamycin (7)), the overall complexity of the molecular problem has stimulated a wealth of new knowledge, including the development of novel strategies and the invention of new synthetic methods. The ingenious and innovative approaches to these targets have enabled new generations of analogues, and provided material to further probe the biology of these fascinating molecules. With pharmaceutical application as an immunosuppressant, as well as potential use for the treatment of cancer and neurodegenerative diseases, this family of natural products continues to inspire new and interesting science while providing solutions to healthcare problems of the world.
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Affiliation(s)
- Matthew L Maddess
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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Majumdar KC, Basu PK, Chattopadhyay SK. Formation of five- and six-membered heterocyclic rings under radical cyclisation conditions. Tetrahedron 2007. [DOI: 10.1016/j.tet.2006.09.049] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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The study of intramolecular tandem radical cyclizations of acylsilanes with radicalphiles attached on silicon. Tetrahedron 2005. [DOI: 10.1016/j.tet.2004.12.053] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Bezzenine-Lafollée S, Guibé F, Villar H, Zriba R. SmI2-Mediated 3-exo-trig cyclisation of δ-oxo-α,β-unsaturated esters to cyclopropanols and derivatives. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.05.074] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
The conventional tandem cyclization reactions involve the formation of alternating carbon-carbon bonds, whereas the newly developed cyclization reactions involve the formation of consecutive carbon-carbon bonds, in which N-aziridinylimines have been utilized as geminal radical acceptor and donor equivalents in a single operation. This unprecedented tandem cyclization approach becomes feasible by the successful generation of 5- and 6-membered ring radicals by radical cyclizations of N-aziridinylimines. The same notion can be applied to the anionic cyclizations of N-aziridinylimines, thereby allowing anionic consecutive carbon-carbon bond formation. This approach has great synthetic potential, particularly for the construction of quaternary carbon centers, and it provides highly efficient routes for the synthesis of natural products.
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Affiliation(s)
- S Kim
- Center for Molecular Design and Synthesis and Department of Chemistry, School of Molecular Science, Korea Advanced Institute of Science and Technology, Taejon 305-701, Korea.
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Homolytic 1,5-transfer of the Bu3Sn group from enoxy oxygen and allylic carbon to nitrogen. Tetrahedron Lett 2001. [DOI: 10.1016/s0040-4039(00)02152-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Horvat SM, Schiesser CH, Wild LM. Free Radical Homolytic Substitution by the Frontside Mechanism: Ab Initio Study of Homolytic Substitution Reactions at Silicon, Germanium, and Tin. Organometallics 2000. [DOI: 10.1021/om990886j] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sonia M. Horvat
- School of Chemistry, The University of Melbourne, Victoria, Australia 3010
| | - Carl H. Schiesser
- School of Chemistry, The University of Melbourne, Victoria, Australia 3010
| | - Lisa M. Wild
- School of Chemistry, The University of Melbourne, Victoria, Australia 3010
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Chang SY, Jiaang WT, Cherng CD, Tang KH, Huang CH, Tsai YM. The Scope and Limitations of Intramolecular Radical Cyclizations of Acylsilanes with Alkyl, Aryl, and Vinyl Radicals. J Org Chem 1997. [DOI: 10.1021/jo9711302] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sheng-Yueh Chang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Weir-Torn Jiaang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Chaur-Donp Cherng
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Kuo-Hsiang Tang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Chih-Hao Huang
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
| | - Yeun-Min Tsai
- Department of Chemistry, National Taiwan University, Taipei, Taiwan 106, Republic of China
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Beckwith ALJ, Crich D, Duggan PJ, Yao Q. Chemistry of beta-(Acyloxy)alkyl and beta-(Phosphatoxy)alkyl Radicals and Related Species: Radical and Radical Ionic Migrations and Fragmentations of Carbonminus signOxygen Bonds. Chem Rev 1997; 97:3273-3312. [PMID: 11851491 DOI: 10.1021/cr950207o] [Citation(s) in RCA: 104] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Athelstan L. J. Beckwith
- Research School of Chemistry, The Australian National University, Canberra, ACT 0200, Australia, Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, Illinois 60607-7061, and Department of Chemistry, Monash University, Clayton, Victoria 3168, Australia
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Curran DP, Diederichsen U, Palovich M. Radical Cyclizations of Acylgermanes. New Reagent Equivalents of the Carbonyl Radical Acceptor Synthon. J Am Chem Soc 1997. [DOI: 10.1021/ja970219m] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dennis P. Curran
- Contribution from the Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania, 15260
| | - Ulf Diederichsen
- Contribution from the Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania, 15260
| | - Michael Palovich
- Contribution from the Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania, 15260
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Smith AB, Condon SM, McCauley JA, Leazer JL, Leahy JW, Maleczka RE. A Unified Total Synthesis of the Immunomodulators (−)-Rapamycin and (−)-27-Demethoxyrapamycin: Construction of the C(21−42) Perimeters. J Am Chem Soc 1997. [DOI: 10.1021/ja963066w] [Citation(s) in RCA: 66] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amos B. Smith
- Contribution from the Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Stephen M. Condon
- Contribution from the Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - John A. McCauley
- Contribution from the Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Johnnie L. Leazer
- Contribution from the Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - James W. Leahy
- Contribution from the Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104
| | - Robert E. Maleczka
- Contribution from the Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104
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Tsai YM, Tang KH, Jiaang WT. Group transfer from silicon to carbon via tandem radical cyclizations of acylsilanes. Tetrahedron Lett 1996. [DOI: 10.1016/0040-4039(96)01773-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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28
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Kim S, Do JY, Lim KM. 1,5-Ph3Ge and 1,6-Bu3Sn Group Transfer from Enoxy Oxygen to Alkoxy Oxygen. CHEM LETT 1996. [DOI: 10.1246/cl.1996.669] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Chuang TH, Fang JM, Jiaang WT, Tsai YM. Reductions, Reductive Alkylations, and Intramolecular Cyclizations of Acyl Silanes with Samarium Diiodide or Tributyltin Hydride. J Org Chem 1996; 61:1794-1805. [PMID: 11667051 DOI: 10.1021/jo951980m] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A series of acyl silanes including aliphatic-, aromatic-, and bis-acyl silanes, as well as the acyl silanes bearing other substituents such as a bromine atom and alkenyl, succinimide, and carbonyl groups, were prepared, and their reactions with samarium diiodide or tributylstannane were studied. The reactions of acyl silanes occurred in various manners such as reductions, reductive alkylations, intramolecular radical cyclizations, pinacol couplings, aldol reactions, and Tishchenko reactions, depending on the nature of substrates and reaction conditions. Acyl silanes were generally reduced to give the corresponding alpha-silyl alcohols without transfer of silyl groups. Intramolecular radical cyclizations of 5-hexenoyl silanes and 1-silyl-1,5-pentanedione were realized to give alpha-silyl cyclopentanols and 1,2-cyclopentanediol derivatives, respectively. On treatment with samarium diiodide in tetrahydrofuran, 1-(trimethylsilyl)-1,6-hexanedione underwent a pinacol coupling reaction in the presence of t-BuOH, whereas it underwent a Tishchenko reaction in the presence of MeOH. The Tishchenko reaction of 1-silyl-1,5-pentanedione gave a delta-silyl-delta-lactone. On treating with samarium diiodide, 1-(trimethylsilyl)-1,5-hexanedione and 1,5-bis(trimethylsilyl)-1,6-hexanedione, underwent, respectively, intramolecular aldol reactions.
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Affiliation(s)
- Tsung-Hsun Chuang
- Department of Chemistry, National Taiwan University, Taipei 106, Taiwan, Republic of China
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Ryu I, Sonoda N, Curran DP. Tandem Radical Reactions of Carbon Monoxide, Isonitriles, and Other Reagent Equivalents of the Geminal Radical Acceptor/Radical Precursor Synthon. Chem Rev 1996; 96:177-194. [PMID: 11848749 DOI: 10.1021/cr9400626] [Citation(s) in RCA: 335] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ilhyong Ryu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260
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Tsai YM, Nieh HC, Pan JS, Hsiao DD. Formation of silyloxy-substituted pyrrolizidinones, indolizidinones and quinolizidinones via intramolecular cyclizations of α-acylamino radicals with acylsilanes. Chem Commun (Camb) 1996. [DOI: 10.1039/cc9960002469] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Nájera C, Yus M. ACYL MAIN GROUP METAL AND METALLOID DERIVATIVES IN ORGANIC SYNTHESIS. A REVIEW. ORG PREP PROCED INT 1995. [DOI: 10.1080/00304949509458476] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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33
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Unprecedented McMurry Reactions with Acylsilanes: Enedisilane Formation versus Brook Rearrangement. Tetrahedron 1995. [DOI: 10.1016/0040-4020(95)00482-n] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Tsai YM, Chang SY. Intramolecular cyclizations of α-stannyl radicals to acylsilanes: regiospecific syntheses of five-membered cyclic silyl enol ethers. ACTA ACUST UNITED AC 1995. [DOI: 10.1039/c39950000981] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Robertson J, Burrows JN. Free radical rearrangement of alkenyl epoxy silanes. Isolation of α-trimethylsilyl aldehydes. Tetrahedron Lett 1994. [DOI: 10.1016/s0040-4039(00)73097-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kim S, Lim KM. Further studies on 1,5-Bu3Sn group transfer reactions. 1,5-Bu3Sn group and 1,5-hydrogen atom transfer competition. Tetrahedron Lett 1993. [DOI: 10.1016/s0040-4039(00)74107-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Tsai YM, Tang KH, Jiaang WT. Radical cyclizations of bromo acylsilanes and intramolecular trapping of the rearranged α-silyloxy radicals. Tetrahedron Lett 1993. [DOI: 10.1016/s0040-4039(00)91780-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Batty D, Crich D. Acyl radical cyclizations in synthesis. Part 5. Further tandem processes: formation of an α-methylenecyclohexanone by a cyclization–fragmentation hydrogen-abstraction sequence. ACTA ACUST UNITED AC 1992. [DOI: 10.1039/p19920003205] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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