1
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Kaur R, Singh RP. Stereoselective Reductive Coupling Reactions Utilizing [1,2]-Phospha-Brook Rearrangement: A Powerful Umpolung Approach. J Org Chem 2023; 88:10325-10338. [PMID: 37460945 DOI: 10.1021/acs.joc.3c01055] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
[1,2]-Phospha-Brook rearrangement entails the generation of α-oxygenated carbanions via the umpolung process. Recently, these anionic species have been widely utilized for several C-C bond forming strategies, providing various useful frameworks that are difficult to access through conventional approaches. However, the application of this powerful methodology in the development of chiral strategies is still at the nascent stage due to challenges involved in controlling chemoselectivity and enantioselectivity. This synopsis provides a detailed summary of diastereo- and/or enantioselective chemical transformations using [1,2]-phospha-Brook rearrangement.
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Affiliation(s)
- Ravneet Kaur
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Ravi P Singh
- Department of Chemistry, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
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2
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Wang Y, Xu J, Pan Y, Wang Y. Recent advances in electrochemical deoxygenation reactions of organic compounds. Org Biomol Chem 2023; 21:1121-1133. [PMID: 36655598 DOI: 10.1039/d2ob01817a] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
As naturally abundant and recyclable industrial feedstock, alcohols and carboxylic acids have drawn tremendous attention in medicinal chemistry and polymer chemistry. The selective C-O cleavage of the hydroxyl group represents an appealing strategy to deliver alkyl and carbonyl moieties into organic molecules. Classical examples of hydroxyl activation include the Appel reaction, Mitsunobu reaction, and Barton-McCombie deoxygenation. However, these early approaches still require large amounts of oxidants or reductants, and suffer from harsh conditions and low atom economy. Electrosynthesis has proven to be an effective and mild way of the modern chemical industry, avoiding the use of chemical oxidants/reductants through the action of an electric current. In this review, we have summarized the recent advances in electrochemical deoxygenation reactions and categorized the deoxygenation methods by different functionalities.
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Affiliation(s)
- Yang Wang
- School of Chemistry and Life Sciences, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Jia Xu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Yi Pan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Yi Wang
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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3
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Li Q, Zhang W, Zhu C, Pan H, Shi KY, Zhang Y, Han MY, Tan CH. Organobase-Catalyzed Umpolung of Amides: The Generation and Transfer of Carbamoyl Anion. J Org Chem 2023; 88:1245-1255. [PMID: 36628963 DOI: 10.1021/acs.joc.2c02487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A novel organobase-catalyzed umpolung reaction of amides was disclosed. This method provides an efficient method to generate and transfer carbamoyl anions. In this transformation, some of the inherent disadvantages of carbamoyl metal were avoided. The mechanistic analysis revealed that the reaction proceeds through polarity inversion of amide, and various carbamoyl anions were applied in the reaction. Moreover, a wide range of substrates was achieved with moderate to excellent yield.
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Affiliation(s)
- Qi Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huabei Normal University, Huaibei, Anhui 235000, PR China
| | - Wang Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huabei Normal University, Huaibei, Anhui 235000, PR China
| | - Chen Zhu
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huabei Normal University, Huaibei, Anhui 235000, PR China
| | - Hong Pan
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huabei Normal University, Huaibei, Anhui 235000, PR China
| | - Kang-Yue Shi
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huabei Normal University, Huaibei, Anhui 235000, PR China
| | - Yicheng Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huabei Normal University, Huaibei, Anhui 235000, PR China
| | - Man-Yi Han
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huabei Normal University, Huaibei, Anhui 235000, PR China
| | - Choon-Hong Tan
- Division of Chemistry and Biological Chemistry, Nanyang Technological University, Singapore 637371
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4
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Kagoshima H, Muraishi K, Tsuchida S, Shiraishi T, Takimoto R. Conjugate Addition of 2-Tributylstannyl-1,3-dithiane to α, β-Unsaturated Ketones by the Combined Use of Cu(OTf) 2 and Et 3SiOTf. CHEM LETT 2019. [DOI: 10.1246/cl.180957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Hirotaka Kagoshima
- Center for Instrumental Analysis, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - Kazuya Muraishi
- Center for Instrumental Analysis, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - Shusei Tsuchida
- Center for Instrumental Analysis, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - Tatsuki Shiraishi
- Center for Instrumental Analysis, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
| | - Ryuta Takimoto
- Center for Instrumental Analysis, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
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Selvamurugan V, Aidhen IS. A novel and convenient approach to 5-aryltetrahydro-2-furanols. JOURNAL OF CHEMICAL RESEARCH 2019. [DOI: 10.3184/030823400103166319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- V. Selvamurugan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Indrapal Singh Aidhen
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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6
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Ma X, Dewez DF, Du L, Luo X, Markó IE, Lam K. Synthesis of Diketones, Ketoesters, and Tetraketones by Electrochemical Oxidative Decarboxylation of Malonic Acid Derivatives: Application to the Synthesis of cis-Jasmone. J Org Chem 2018; 83:12044-12055. [DOI: 10.1021/acs.joc.8b01994] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaofeng Ma
- Laboratoire de Chimie Organique et Médicinale, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 bte L4.01.02, 1348 Louvain-la-Neuve, Belgium
| | - Damien F. Dewez
- Laboratoire de Chimie Organique, Service de Chimie et Physicochimie Organiques, Université libre de Bruxelles, Avenue F.D. Roosevelt 50, CP160/60, 1050 Brussels, Belgium
| | - Le Du
- Laboratoire de Chimie Organique et Médicinale, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 bte L4.01.02, 1348 Louvain-la-Neuve, Belgium
| | - Xiya Luo
- Laboratoire de Chimie Organique et Médicinale, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 bte L4.01.02, 1348 Louvain-la-Neuve, Belgium
| | - István E. Markó
- Laboratoire de Chimie Organique et Médicinale, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Place Louis Pasteur 1 bte L4.01.02, 1348 Louvain-la-Neuve, Belgium
| | - Kevin Lam
- Department of Pharmaceutical, Chemical and Environmental Sciences, Faculty of Engineering and Science, University of Greenwich, Central Avenue, Chatham Maritime ME4 4TB, United Kingdom
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7
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Nishimoto Y, Kang K, Yasuda M. Regio- and Stereoselective Anti-Carbozincation of Alkynyl Ethers Using ZnBr 2 toward (Z)-β-Zincated Enol Ether Synthesis. Org Lett 2017; 19:3927-3930. [PMID: 28700238 DOI: 10.1021/acs.orglett.7b01847] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
(Z)-β-Aryloxyalkenylzincs are synthesized stereoselectively via anti-carbozincation among alkynyl ethers, silyl ketene acetals, and ZnBr2. X-ray analysis revealed the structure of the zinc species is a mononuclear two-coordinate dialkenylzinc that is transformed into functionalized enol ethers as a single isomer in the reaction of various electrophiles.
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Affiliation(s)
- Yoshihiro Nishimoto
- Frontier Research Base for Global Young Researchers, Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, and ‡Department of Applied Chemistry, Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kyoungmin Kang
- Frontier Research Base for Global Young Researchers, Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, and ‡Department of Applied Chemistry, Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Makoto Yasuda
- Frontier Research Base for Global Young Researchers, Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, and ‡Department of Applied Chemistry, Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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8
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Esumi N, Suzuki K, Nishimoto Y, Yasuda M. Synthesis of 1,4-Dicarbonyl Compounds from Silyl Enol Ethers and Bromocarbonyls, Catalyzed by an Organic Dye under Visible-Light Irradiation with Perfect Selectivity for the Halide Moiety over the Carbonyl Group. Org Lett 2016; 18:5704-5707. [PMID: 27779410 DOI: 10.1021/acs.orglett.6b02869] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report the visible-light-induced radical coupling reaction of silyl enol ethers with α-bromocarbonyl compounds to give 1,4-dicarbonyls. The reaction was effectively accelerated using an inexpensive organic dye (eosin Y) as a photoredox catalyst. 1,4-Dicarbonyl compounds alone were afforded, without the generation of carbonyl adducts of the α-halocarbonyls, which are usually generated in the presence of fluoride anions or Lewis acids. A variety of silyl enol ethers, α-bromoketones, α-bromoesters, and α-bromoamides were applied to this system to produce the coupling compounds.
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Affiliation(s)
- Naoto Esumi
- Department of Applied Chemistry and ‡Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kensuke Suzuki
- Department of Applied Chemistry and ‡Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yoshihiro Nishimoto
- Department of Applied Chemistry and ‡Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Makoto Yasuda
- Department of Applied Chemistry and ‡Frontier Research Base for Global Young Researchers Center for Open Innovation Research and Education (COiRE), Graduate School of Engineering, Osaka University , 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
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9
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Slutskyy Y, Overman LE. Generation of the Methoxycarbonyl Radical by Visible-Light Photoredox Catalysis and Its Conjugate Addition with Electron-Deficient Olefins. Org Lett 2016; 18:2564-7. [PMID: 27186995 DOI: 10.1021/acs.orglett.6b00895] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Visible-light photoredox-catalyzed fragmentation of methyl N-phthalimidoyl oxalate allows the direct construction of a 1,4-dicarbonyl structural motif by a conjugate addition of the methoxycarbonyl radical to reactive Michael acceptors. The regioselectivity of the addition of this alkoxyacyl radical species to electron-deficient olefins is heavily influenced by the electronic nature of the acceptor, behavior similar to that exhibited by nucleophilic alkyl radicals.
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Affiliation(s)
- Yuriy Slutskyy
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
| | - Larry E Overman
- Department of Chemistry, University of California , Irvine, California 92697-2025, United States
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10
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Nagaki A, Takahashi Y, Yoshida JI. Generation and Reaction of Carbamoyl Anions in Flow: Applications in the Three-Component Synthesis of Functionalized α-Ketoamides. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601386] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry; Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Yusuke Takahashi
- Department of Synthetic and Biological Chemistry; Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Jun-ichi Yoshida
- Department of Synthetic and Biological Chemistry; Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
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11
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Nagaki A, Takahashi Y, Yoshida JI. Generation and Reaction of Carbamoyl Anions in Flow: Applications in the Three-Component Synthesis of Functionalized α-Ketoamides. Angew Chem Int Ed Engl 2016; 55:5327-31. [DOI: 10.1002/anie.201601386] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Aiichiro Nagaki
- Department of Synthetic and Biological Chemistry; Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Yusuke Takahashi
- Department of Synthetic and Biological Chemistry; Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
| | - Jun-ichi Yoshida
- Department of Synthetic and Biological Chemistry; Graduate School of Engineering; Kyoto University; Nishikyo-ku Kyoto 615-8510 Japan
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12
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Christmann M, Hu J, Kitamura M, Stoltz B. Tetrahedron reports on organic chemistry. Tetrahedron 2015. [DOI: 10.1016/s0040-4020(15)00744-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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13
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Denmark SE, Cullen LR. Catalytic Conjugate Addition of Acyl Anion Equivalents Promoted by Fluorodesilylation. Org Lett 2013; 16:70-3. [DOI: 10.1021/ol403041k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Scott E. Denmark
- Roger Adams Laboratory, Department
of Chemistry, University of Illinois, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Lindsey R. Cullen
- Roger Adams Laboratory, Department
of Chemistry, University of Illinois, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
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14
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Tsuji J, Shimizu I, Kobayashi Y. General Synthetic Methods for the Preparation of 1,4- and 1,5-Dicarbonyl Compounds. New Annulation Methods Based on the Palladium-Catalyzed Oxidation of Terminal Olefins to Methyl Ketones. Isr J Chem 2013. [DOI: 10.1002/ijch.198400026] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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16
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2013. [DOI: 10.1016/s0040-4020(13)01252-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Reeves JT, Tan Z, Herbage MA, Han ZS, Marsini MA, Li Z, Li G, Xu Y, Fandrick KR, Gonnella NC, Campbell S, Ma S, Grinberg N, Lee H, Lu BZ, Senanayake CH. Carbamoyl Anion Addition to N-Sulfinyl Imines: Highly Diastereoselective Synthesis of α-Amino Amides. J Am Chem Soc 2013; 135:5565-8. [DOI: 10.1021/ja402647m] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jonathan T. Reeves
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Zhulin Tan
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Melissa A. Herbage
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Zhengxu S. Han
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Maurice A. Marsini
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Zhibin Li
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Guisheng Li
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Yibo Xu
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Keith R. Fandrick
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Nina C. Gonnella
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Scot Campbell
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Shengli Ma
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Nelu Grinberg
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Heewon Lee
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Bruce Z. Lu
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
| | - Chris H. Senanayake
- Chemical
Development and Analytical Development, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury
Road/P.O. Box 368, Ridgefield, Connecticut 06877-0368, United States
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19
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2011. [DOI: 10.1016/s0040-4020(11)00770-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2010. [DOI: 10.1016/s0040-4020(10)01735-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Broekhof NLJM, van der Gen A. Enamine synthesis using the Horner-Wittig
reaction. Part 1. (Aminomethyl)diphenylphosphine oxides, new formyl anion equivalents. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/recl.19841031102] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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22
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Schick H, Theil F, Jablokoff H, Schwarz S. Nucleophile Acylierungen unter Verwendung von α-Aminonitrilen; Synthesen von 4-Oxocarbonsäuren durch Addition von α,β-ungesättigten Carbonsäureestern an metallierte α-Aminonitrile. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/zfch.19810210206] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Affiliation(s)
- Joseph E. Saavedra
- a NCI-Frederick Cancer Research Facility , BRI-Basic Research Program , Frederick, MD, 21701
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24
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Satoh T. Carbon Elongation of Carbonyl Compounds Utilizing the Rearrangement of Carbenoids-Recent Developments. J SYN ORG CHEM JPN 2009. [DOI: 10.5059/yukigoseikyokaishi.67.381] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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25
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Tetrahedron reports on organic chemistry. Tetrahedron 2008. [DOI: 10.1016/s0040-4020(08)00897-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Brehme R, Enders D, Fernandez R, Lassaletta JM. Aldehyde
N
,
N
‐Dialkylhydrazones as Neutral Acyl Anion Equivalents: Umpolung of the Imine Reactivity. European J Org Chem 2007. [DOI: 10.1002/ejoc.200700746] [Citation(s) in RCA: 165] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rainer Brehme
- Max‐Planck‐Institut für Colloid‐ und Grenzflächenforschung, Abt. Grenzflächen, Wissenschaftspark Golm, 14424 Potsdam, Germany
| | - Dieter Enders
- RWTH Aachen University, Institute of Organic Chemistry Landoltweg 1, 52074 Aachen, Germany
| | - Rosario Fernandez
- Departamento de Quimica Organica, Universidad de Sevilla, Apdo. de Correos 553, 41071Seville, Spain
| | - José M. Lassaletta
- Instituto de Investigaciones Quimicas (CSIC‐US), Americo Vespucio 49, 41092 Seville, Spain
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Tetrahedron reports on organic chemistry. Tetrahedron 2007. [DOI: 10.1016/s0040-4020(07)01371-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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28
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Tetrahedron reports on organic chemistry. Tetrahedron 2007. [DOI: 10.1016/s0040-4020(07)00834-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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29
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Tetrahedron reports on organic chemistry. Tetrahedron 2007. [DOI: 10.1016/s0040-4020(07)00205-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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30
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Abstract
This tutorial review deals with recent advances in the chemistry and synthetic use of magnesium carbenoids. The reactivity of traditional carbenoids (alpha-haloalkyllithium species) was successfully reduced by using magnesium as the metal instead of lithium. Properties of these relatively stable carbenoids, magnesium carbenoids, were widely investigated and it was found that the magnesium carbenoids have very interesting reactivity toward several nucleophiles. The magnesium carbenoids, magnesium cyclopropylidenes, magnesium alkylidene carbenoids, and magnesium beta-oxido carbenoids are generated from alpha-chloroalkyl (or alpha-chloroalkenyl) aryl sulfoxides with a Grignard reagent at low temperature by sulfoxide-magnesium exchange reaction. The stability of the generated magnesium carbenoids and several new reactions based on the electrophilicity of the magnesium carbenoids, including 1,3-CH insertion, are reviewed. Magnesium carbenoids open up the new world of the chemistry of carbenoids.
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Affiliation(s)
- Tsuyoshi Satoh
- Department of Chemistry, Faculty of Science, Tokyo University of Science, Ichigaya-funagawara-machi 12, Shinjuku-ku, Tokyo 162-0826, Japan.
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31
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Lectka T, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2006. [DOI: 10.1016/s0040-4020(06)01801-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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32
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Lectka T, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2006. [DOI: 10.1016/s0040-4020(06)00771-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Affiliation(s)
- Dieter Seebach
- Laboratorium für Organische Chemie der Eidgenössischen Technischen Hochschule ETH‐Zentrum, Universitätstr. 16, CH‐8092 Zürich (Schweiz)
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34
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Myers MC, Bharadwaj AR, Milgram BC, Scheidt KA. Catalytic conjugate additions of carbonyl anions under neutral aqueous conditions. J Am Chem Soc 2006; 127:14675-80. [PMID: 16231921 DOI: 10.1021/ja0520161] [Citation(s) in RCA: 105] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The conjugate addition of carbonyl anions catalyzed by thiazolium salts that is fully operative under neutral aqueous conditions has been accomplished. The combination of alpha-keto carboxylates and thiazolium-derived zwitterions produces reactive carbonyl anions in a buffered protic environment that readily undergo conjugate additions to substituted alpha,beta-unsaturated 2-acyl imidazoles. The scope of the reaction has been examined and found to accommodate various alpha-keto carboxylates and beta-aryl substituted unsaturated 2-acyl imidazoles. The optimal precatalyst for this process is the commercially available thiazolium salt 5, a simple analogue of thiamin diphosphate. In this process, no benzoin products from carbonyl anion dimerization are observed. The corresponding 1,4-dicarbonyl compounds can be efficiently converted into esters and amides by way of activation of the N-methylimidazole ring via alkylation.
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Affiliation(s)
- Michael C Myers
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
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35
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36
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Miyashita K, Satoh T. A new method for synthesis of α,α-disubstituted carbonyl compounds from carbonyl compounds with one-carbon homologation through β-oxido carbenoid rearrangement as the key reaction. Tetrahedron 2005. [DOI: 10.1016/j.tet.2005.03.054] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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37
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Posner PG, Motherwell PW. Tetrahedron reports on organic chemistry. Tetrahedron 2004. [DOI: 10.1016/s0040-4020(04)01396-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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38
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Yuguchi M, Tokuda M, Orito K. The Synthesis of 1,4-Diketones via a One-pot Five-component Connecting Reaction Based on Two Acylations of Organozincs Promoted by the Catalysis of a Pd(0) Species. CHEM LETT 2004. [DOI: 10.1246/cl.2004.674] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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39
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Yuguchi M, Tokuda M, Orito K. The Synthesis of (±)-Monomorine I Starting with the Palladium-Catalyzed Carbonylative 1,4-Acylation of an Organozinc Chloride. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2004. [DOI: 10.1246/bcsj.77.1031] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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40
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Tetrahedron reports on organic chemistry. Tetrahedron 2004. [DOI: 10.1016/s0040-4020(04)00315-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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41
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Synthesis of podophyllotoxin analogues: δ-lactone-containing picropodophyllin, podophyllotoxin and 4′-demethyl-epipodophyllotoxin derivatives. Tetrahedron 2004. [DOI: 10.1016/j.tet.2004.01.017] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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42
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Affiliation(s)
- Dieter Seebach
- Laboratorium für Organische Chemie der Eidgenössischen Technischen Hochschule, ETH‐Zentrum Universitätstrasse 16, CH‐8092 Zürich (Switzerland)
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43
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Posner PG, Motherwell PW. Tetrahedron reports on organic chemistry. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)01884-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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44
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Posner PG, Motherwell PW. Tetrahedron reports on organic chemistry. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)01130-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Posner PG, Motherwell PW. Tetrahedron reports on organic chemistry. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00841-x] [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]
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46
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Tetrahedron reports on organic chemistry. Tetrahedron 2003. [DOI: 10.1016/s0040-4020(03)00323-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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47
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Posner G, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)01503-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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Satoh T, Taguchi D, Kurabayashi A, Kanoto M. A synthesis of diketones from carbonyl compounds and α,ω-dichloro-α,ω-disulfinylalkanes with two carbon–carbon bond-formation via bis-sulfinyloxiranes. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00352-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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49
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Job A, Janeck CF, Bettray W, Peters R, Enders D. The SAMP-/RAMP-hydrazone methodology in asymmetric synthesis. Tetrahedron 2002. [DOI: 10.1016/s0040-4020(02)00080-7] [Citation(s) in RCA: 215] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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50
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Obora Y, Ogawa Y, Imai Y, Kawamura T, Tsuji Y. Palladium complex catalyzed acylation of allylic esters with acylsilanes. J Am Chem Soc 2001; 123:10489-93. [PMID: 11673979 DOI: 10.1021/ja010674p] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Acylation of allylic esters (2) with acylsilanes (1) in the presence of a catalytic amount (5 mol %) of a palladium complex is reported. The reaction proceeds selectively to afford beta,gamma-unsaturated ketones (3) in high yields. [Pd(eta3-C6H5CH=CHCH2)(CF3COO)]2 (4a) showed the best catalytic activity. After the reaction, formation of CF3COOSiMe3 (5a) was confirmed by 29Si NMR measurement of the resulting reaction mixture, indicating the trimethylsilyl moiety effectively traps the CF3COO leaving group from 2. The leaving group of the allylic esters affects the reaction considerably: allylic trifluoroacetate gave the best result, while the corresponding acetates and trichloroacetates did not afford any acylation products at all. Stoichiometric reaction of 4a with 1 gave acylation product 3 with a formation of 5a and Pd(0), whereas no acylation reaction took place with the corresponding acetate complex [Pd(eta3-C6H5CH=CHCH2)(CH3COO)]2 (4b). A DFT calculation suggests that interaction of high-lying HOMO of 1 and low-lying LUMO of eta3-allylpalladium trifluoroacetate intermediate 4 would be indispensable in the catalytic cycle.
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Affiliation(s)
- Y Obora
- Catalysis Research Center and Division of Chemistry, Graduate School of Science, Hokkaido University, Sapporo 060-0811, Japan
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