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Doubský J, Rádl S, Cinibulk J, Klvaňa R. Synthesis of Fingolimod Employing Regioselective Aziridine Ring-Opening Reaction as a Key Step. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.1c00248] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jan Doubský
- API Synthesis Development, Zentiva, k.s., U Kabelovny 130, 102 37, Prague 10, Czech Republic
| | - Stanislav Rádl
- API Synthesis Development, Zentiva, k.s., U Kabelovny 130, 102 37, Prague 10, Czech Republic
| | - Josef Cinibulk
- API Synthesis Development, Zentiva, k.s., U Kabelovny 130, 102 37, Prague 10, Czech Republic
| | - Robert Klvaňa
- API Synthesis Development, Zentiva, k.s., U Kabelovny 130, 102 37, Prague 10, Czech Republic
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2
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Castro M, Jiménez J, Ortiz A, Sansinenea E. Di[(R)-2-ethylhexyl] Phthalate, a Bioactive Metabolite First Isolated from Three Different Bacillus Species, and its Synthesis. LETT ORG CHEM 2020. [DOI: 10.2174/1570178616666190718125617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:
Di(2-ethylhexyl) phthalate (DEHP) is the most common phthalate ester, which has been
used as a plasticizer for the production of numerous polymers, particularly polyvinyl chloride (PVC).
Many other groups have synthesized meso-DEHP indicating interest in this molecule, but we are the
first to synthesize enantiomerically pure di[(R)-2-ethylhexyl] phthalate. We report herein, for the first
time, the isolation - from the cultures of Bacillus thuringiensis, B. subtilis, and B. velezensis strains - of
di[(R)-2-ethylhexyl] phthalate, enantiomerically pure and in good yields: its biological activity against
bacteria and fungi was probed and for the first time its synthesis was done.
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Affiliation(s)
- Miriam Castro
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Pue. 72570, Mexico
| | - Jacqueline Jiménez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Pue. 72570, Mexico
| | - Aurelio Ortiz
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Pue. 72570, Mexico
| | - Estibaliz Sansinenea
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Pue. 72570, Mexico
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3
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Lei J, Li Y, He LJ, Luo YF, Tang DY, Yan W, Lin HK, Li HY, Chen ZZ, Xu ZG. Expeditious access of chromone analogues via a Michael addition-driven multicomponent reaction. Org Chem Front 2020. [DOI: 10.1039/d0qo00145g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A Michael addition-driven four-component reaction (4-CR) with four Ugi inputs was developed and utilized for the synthesis of chromone derivatives and tetrazole substituted chromones under mild reaction conditions.
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4
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Liu D, Nie Q, Zhang R, Cai M. Regiospecific Hydroamination of Unsymmetrical Electron-Rich and Electron-Poor Alkynes with Anilines Catalyzed by Gold(I) Immobilized in MCM-41. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800621] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Dayi Liu
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Quan Nie
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Rongli Zhang
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule, Ministry of Education and College of Chemistry & Chemical Engineering; Jiangxi Normal University; Nanchang 330022 People's Republic of China
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5
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Recent Advances in the Synthesis of Piperidines: Functionalization of Preexisting Ring Systems. ADVANCES IN HETEROCYCLIC CHEMISTRY 2018. [DOI: 10.1016/bs.aihch.2017.10.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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6
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Li Y, Jackson KE, Charlton A, Le Neve-Foster B, Khurshid A, Rudy HKA, Thompson AL, Paton RS, Hodgson DM. Asymmetric Induction in C-Alkylation of Tropane-Derived Enamines: Congruence Between Computation and Experiment. J Org Chem 2017; 82:10479-10488. [DOI: 10.1021/acs.joc.7b01954] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yifei Li
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Kelvin E. Jackson
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Andrew Charlton
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Ben Le Neve-Foster
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Asma Khurshid
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Heinrich-K. A. Rudy
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Amber L. Thompson
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Robert S. Paton
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - David. M. Hodgson
- Department of Chemistry,
Chemistry Research Laboratory, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
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7
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Pace V, Castoldi L, Mazzeo E, Rui M, Langer T, Holzer W. Efficient Access to All‐Carbon Quaternary and Tertiary α‐Functionalized Homoallyl‐type Aldehydes from Ketones. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706236] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Vittorio Pace
- Department of Pharmaceutical Chemistry University of Vienna Althanstrasse, 14 1090 Vienna Austria
| | - Laura Castoldi
- Department of Pharmaceutical Chemistry University of Vienna Althanstrasse, 14 1090 Vienna Austria
| | - Eugenia Mazzeo
- Department of Pharmaceutical Chemistry University of Vienna Althanstrasse, 14 1090 Vienna Austria
| | - Marta Rui
- Department of Pharmaceutical Chemistry University of Vienna Althanstrasse, 14 1090 Vienna Austria
| | - Thierry Langer
- Department of Pharmaceutical Chemistry University of Vienna Althanstrasse, 14 1090 Vienna Austria
| | - Wolfgang Holzer
- Department of Pharmaceutical Chemistry University of Vienna Althanstrasse, 14 1090 Vienna Austria
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8
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Pace V, Castoldi L, Mazzeo E, Rui M, Langer T, Holzer W. Efficient Access to All-Carbon Quaternary and Tertiary α-Functionalized Homoallyl-type Aldehydes from Ketones. Angew Chem Int Ed Engl 2017; 56:12677-12682. [PMID: 28722252 DOI: 10.1002/anie.201706236] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Indexed: 12/30/2022]
Abstract
β,γ-Unsaturated aldehydes with all-carbon quaternary or tertiary α-centers were rapidly assembled from ketones through a unique synthetic operation consisting of 1) C1 homologation, 2) Lewis acid mediated epoxide-aldehyde isomerization, and 3) electrophilic trapping. The synthetic equivalence of a vinyl oxirane and a β,γ-unsaturated aldehyde is the key concept of this previously undisclosed tactic. Mechanistic studies and labeling experiments suggest that an aldehyde enolate is a crucial intermediate. The homologating carbenoid formation plays a critical role in determining the chemoselectivity.
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Affiliation(s)
- Vittorio Pace
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse, 14, 1090, Vienna, Austria
| | - Laura Castoldi
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse, 14, 1090, Vienna, Austria
| | - Eugenia Mazzeo
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse, 14, 1090, Vienna, Austria
| | - Marta Rui
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse, 14, 1090, Vienna, Austria
| | - Thierry Langer
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse, 14, 1090, Vienna, Austria
| | - Wolfgang Holzer
- Department of Pharmaceutical Chemistry, University of Vienna, Althanstrasse, 14, 1090, Vienna, Austria
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9
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Zhu K, Shaver MP, Thomas SP. Chemoselective nitro reduction and hydroamination using a single iron catalyst. Chem Sci 2016; 7:3031-3035. [PMID: 29997793 PMCID: PMC6005157 DOI: 10.1039/c5sc04471e] [Citation(s) in RCA: 102] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 01/24/2016] [Indexed: 12/23/2022] Open
Abstract
An amine-bis(phenolate) iron(iii) complex catalyses both the chemoselective reduction of nitroarenes and the formal hydroamination of highly substituted olefins.
The reduction and reductive addition (formal hydroamination) of functionalised nitroarenes is reported using a simple and bench-stable iron(iii) catalyst and silane. The reduction is chemoselective for nitro groups over an array of reactive functionalities (ketone, ester, amide, nitrile, sulfonyl and aryl halide). The high activity of this earth-abundant metal catalyst also facilitates a follow-on reaction in the reductive addition of nitroarenes to alkenes, giving efficient formal hydroamination of olefins under mild conditions. Both reactions offer significant improvements in catalytic activity and chemoselectivity and the utility of these catalysts in facilitating two challenging reactions supports an important mechanistic overlap.
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Affiliation(s)
- Kailong Zhu
- School of Chemistry , University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK . ;
| | - Michael P Shaver
- School of Chemistry , University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK . ;
| | - Stephen P Thomas
- School of Chemistry , University of Edinburgh , Joseph Black Building, David Brewster Road , Edinburgh , EH9 3FJ , UK . ;
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10
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Pandey AK, Banerjee P. One-Pot Synthesis of Oxazolidine Derivatives by [3+2]-Annulation Reactions of 1-Tosyl-2-phenyl/alkylaziridines with Aryl Epoxides. ASIAN J ORG CHEM 2016. [DOI: 10.1002/ajoc.201500438] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ashok Kumar Pandey
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road, Rupnagar Punjab- 140001 India
| | - Prabal Banerjee
- Department of Chemistry; Indian Institute of Technology Ropar; Nangal Road, Rupnagar Punjab- 140001 India
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11
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12
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Longstreet AR, Rivalti D, McQuade DT. Synthesis and Reactivity Profile of Ylidenemalononitrile Enamines and Their Ester Analogs Towards Electrophiles and Nucleophiles. J Org Chem 2015. [PMID: 26218519 DOI: 10.1021/acs.joc.5b01169] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ashley R. Longstreet
- Department of Chemistry and
Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - Daniel Rivalti
- Department of Chemistry and
Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
| | - D. Tyler McQuade
- Department of Chemistry and
Biochemistry, Florida State University, 95 Chieftan Way, Tallahassee, Florida 32306, United States
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13
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Huang L, Arndt M, Gooßen K, Heydt H, Gooßen LJ. Late Transition Metal-Catalyzed Hydroamination and Hydroamidation. Chem Rev 2015; 115:2596-697. [DOI: 10.1021/cr300389u] [Citation(s) in RCA: 739] [Impact Index Per Article: 82.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Liangbin Huang
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Matthias Arndt
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Käthe Gooßen
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Heinrich Heydt
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
| | - Lukas J. Gooßen
- Department of Chemistry, TU Kaiserslautern, Erwin-Schrödinger-Strasse Geb. 54, 67663 Kaiserslautern, Germany
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14
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Ikai T, Kojima R, Katori S, Yamamoto T, Kuwabara T, Maeda K, Takahashi K, Kanoh S. Thieno[3,4-b]thiophene–benzo[1,2-b:4,5-b′]dithiophene-based polymers bearing optically pure 2-ethylhexyl pendants: Synthesis and application in polymer solar cells. POLYMER 2015. [DOI: 10.1016/j.polymer.2014.11.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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16
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Vyas DJ, Larionov E, Besnard C, Guénée L, Mazet C. Isomerization of Terminal Epoxides by a [Pd–H] Catalyst: A Combined Experimental and Theoretical Mechanistic Study. J Am Chem Soc 2013; 135:6177-83. [DOI: 10.1021/ja400325w] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Devendra J. Vyas
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211
Geneva 4, Switzerland
| | - Evgeny Larionov
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211
Geneva 4, Switzerland
| | - Céline Besnard
- Laboratoire
de Crystallographie, University of Geneva, Quai Ernest Ansermet 24, 1211
Geneva 4, Switzerland
| | - Laure Guénée
- Laboratoire
de Crystallographie, University of Geneva, Quai Ernest Ansermet 24, 1211
Geneva 4, Switzerland
| | - Clément Mazet
- Department of Organic Chemistry, University of Geneva, Quai Ernest Ansermet 30, 1211
Geneva 4, Switzerland
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17
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Hodgson DM, Charlton A, Paton RS, Thompson AL. C-Alkylation of Chiral Tropane- and Homotropane-Derived Enamines. J Org Chem 2013; 78:1508-18. [DOI: 10.1021/jo3025972] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David M. Hodgson
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA,
U.K
| | - Andrew Charlton
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA,
U.K
| | - Robert S. Paton
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA,
U.K
| | - Amber L. Thompson
- Department of Chemistry, Chemistry Research Laboratory, University of Oxford, Mansfield Road, Oxford OX1 3TA,
U.K
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18
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Kumaran E, Leong WK. Rhodium(III)-Catalyzed Hydroamination of Aromatic Terminal Alkynes with Anilines. Organometallics 2012. [DOI: 10.1021/om201134j] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elumalai Kumaran
- Division of Chemistry and Biological
Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
| | - Weng Kee Leong
- Division of Chemistry and Biological
Chemistry, Nanyang Technological University, 21 Nanyang Link, Singapore 637371
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19
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Nagaki A, Takizawa E, Yoshida JI. Generation and Reactions of Oxiranyllithiums by Use of a Flow Microreactor System. Chemistry 2010; 16:14149-58. [DOI: 10.1002/chem.201000815] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Um JM, Kaka NS, Hodgson DM, Houk KN. Transition states and origins of 1,4-asymmetric induction in alkylations of 2,2,6-trialkylpiperidine enamines. Chemistry 2010; 16:6310-6. [PMID: 20411546 PMCID: PMC3049728 DOI: 10.1002/chem.201000046] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The asymmetric C-alkylation of chiral enamines derived from terminal epoxides and lithium 2,2,6-trialkylpiperidides has previously been shown to provide alpha-alkylated aldehydes by intermolecular nucleophilic substitution in good levels of asymmetric induction. We now report a computational study of the origins of asymmetric induction in these reactions. Computational modeling with density functional theory (B3LYP/6-31G(d)) agrees closely with the experimental observations. This stereoselectivity is attributed to a preferential conformation of the enamine and the piperidine ring that places the C-6 alkyl substituent in an axial position due to A(1, 3) strain. Preferential attack occurs away from the axial group, for steric reasons. The effects of changing the C-6 substituent from methyl to isopropyl were studied, and twist transition states were found to contribute significantly in the latter alkylations.
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Affiliation(s)
- Joann M. Um
- Department of Chemistry and Biochemistry, UCLA Los Angeles, CA 90095-1569 (USA)
| | - Naeem S. Kaka
- Department of Chemistry, Chemistry Research Laboratory University of Oxford, Mansfield Road, Oxford, OX1 3TA (UK)
| | - David M. Hodgson
- Department of Chemistry, Chemistry Research Laboratory University of Oxford, Mansfield Road, Oxford, OX1 3TA (UK)
| | - K. N. Houk
- Department of Chemistry and Biochemistry, UCLA Los Angeles, CA 90095-1569 (USA)
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