1
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Buev EM, Smorodina AA, Moshkin VS, Sosnovskikh VY. 5-Aryloxazolidines as Reagents for Double Alkylation of Arenes: A Novel Synthesis of 4-Aryltetrahydroisoquinolines. J Org Chem 2021; 86:15307-15317. [PMID: 34591479 DOI: 10.1021/acs.joc.1c01881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
5-Aryloxazolidines react with arenes under Lewis or Brønsted acid conditions via the Friedel-Crafts/Pictet-Spengler double alkylation sequence to give alkaloid-like 4-aryltetrahydroisoquinolines in 12-94% yields. Three approaches for the controlled insertion of substituents into the target molecules and application of oxazolidine derivatives such as 1-arylethanol-2-amines or 4-hydroxytetrahydroisoquinolines in the alkylation of arenes are also described. An unprecedented two-step easily scalable synthesis of the 4-aryltetrahydroisoquinoline core from aromatic aldehyde was achieved applying oxazolidine methodology.
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Affiliation(s)
- Evgeny M Buev
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russian Federation
| | - Anastasia A Smorodina
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russian Federation
| | - Vladimir S Moshkin
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russian Federation
| | - Vyacheslav Y Sosnovskikh
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russian Federation
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2
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Yıldız T, Baştaş İ, Başpınar Küçük H. Transition-metal-free intramolecular Friedel-Crafts reaction by alkene activation: A method for the synthesis of some novel xanthene derivatives. Beilstein J Org Chem 2021; 17:2203-2208. [PMID: 34621387 PMCID: PMC8450977 DOI: 10.3762/bjoc.17.142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Accepted: 08/17/2021] [Indexed: 12/13/2022] Open
Abstract
In this work, new derivatives (substituted 9-methyl-9-arylxanthenes) of xanthene compounds (5a-l) of possible biological significance were synthesized by developing a new synthesis method. In order to obtain xanthene derivatives, the original alkene compounds to be used as the starting materials were synthesized in four steps using appropriate reactions. A cyclization reaction by intramolecular Friedel-Crafts alkylation was carried out in order to synthesize the desired xanthene derivatives using the alkenes as starting compounds. The intramolecular Friedel-Crafts reaction was catalyzed by trifluoroacetic acid (TFA) and provided some novel substituted 9-methyl-9-arylxanthenes with good yields at room temperature within 6-24 hours. As a result, an alkene compound was used for activation with TFA in the synthesis of xanthene through intramolecular Friedel-Crafts alkylation for the first time.
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Affiliation(s)
- Tülay Yıldız
- Istanbul University-Cerrahpaşa, Department of Chemistry, Istanbul, Avcilar, 34320, Turkey
| | - İrem Baştaş
- Istanbul University-Cerrahpaşa, Department of Chemistry, Istanbul, Avcilar, 34320, Turkey
| | - Hatice Başpınar Küçük
- Istanbul University-Cerrahpaşa, Department of Chemistry, Istanbul, Avcilar, 34320, Turkey
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3
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Krishna Reddy SM, Suresh P, Thamotharan S, Nanubolu JB, Suresh S, Selva Ganesan S. Substrate controlled, regioselective carbopalladation for the one-pot synthesis of C4-substituted tetrahydroisoquinoline analogues. RSC Adv 2020; 10:15794-15799. [PMID: 35493635 PMCID: PMC9052373 DOI: 10.1039/d0ra01539c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 04/11/2020] [Indexed: 11/21/2022] Open
Abstract
6-Exo-trig cyclization reaction through regioselective carbopalladation was demonstrated with N-(2-halobenzyl)-N-allylamines to furnish the corresponding C4-substituted tetrahydroisoquinoline derivatives.
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Affiliation(s)
| | - Pavithira Suresh
- Department of Chemistry
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur-613401
- India
| | - Subbiah Thamotharan
- Biomolecular Crystallography Laboratory
- Department of Bioinformatics
- School of Chemical and Biotechnology
- SASTRA Deemed University
- Thanjavur 613401
| | - Jagadeesh Babu Nanubolu
- Centre for X-ray Crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
| | - Surisetti Suresh
- Organic Synthesis & Process Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
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4
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Buev EM, Stepanov MA, Moshkin VS, Sosnovskikh VY. Synthesis of 6,12-Methanodibenzo[c,f]azocines and 4-Aryltetrahydroisoquinolines from Aromatic Aldehydes. Org Lett 2019; 22:631-635. [DOI: 10.1021/acs.orglett.9b04401] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Evgeny M. Buev
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russian Federation
| | - Maxim A. Stepanov
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russian Federation
| | - Vladimir S. Moshkin
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russian Federation
| | - Vyacheslav Y. Sosnovskikh
- Institute of Natural Sciences and Mathematics, Ural Federal University, 620000 Ekaterinburg, Russian Federation
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5
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Liu DY, Zhu SM, Li RQ, Tian JS, Loh TP. α-Amino Acetal: A Synthetic Intermediate for the Construction of Aza-Polycycles. Org Lett 2019; 21:6357-6360. [PMID: 31369288 DOI: 10.1021/acs.orglett.9b02240] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
One-step construction of aza-polycyclic skeletons was realized through double cyclization of the oxocarbenium and carbocation intermediates generated from α-amino acetals, which were designed and synthesized by employing our α-amination protocol of aldehydes. A simple process, a broad substrate range, commercialized materials, and extensive applications demonstrated the generality and effectiveness of this method.
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Affiliation(s)
- Duan-Yang Liu
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering (SCME) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P. R. China
| | - Si-Mao Zhu
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering (SCME) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P. R. China
| | - Rui-Qi Li
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering (SCME) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P. R. China
| | - Jie-Sheng Tian
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering (SCME) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P. R. China
| | - Teck-Peng Loh
- Institute of Advanced Synthesis (IAS), School of Chemistry and Molecular Engineering (SCME) , Nanjing Tech University (NanjingTech) , 30 South Puzhu Road , Nanjing 211816 , P. R. China.,Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences , Nanyang Technological University , Singapore 637371
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6
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Yang Y, Li Y, Cheng C, Yang G, Zhang J, Zhang Y, Zhao Y, Zhang L, Li C, Tang L. Synthesis of 4-Aryl Isoquinolinedione Derivatives by a Palladium-Catalyzed Coupling Reaction of Aryl Halides with Isoquinoline-1,3(2 H,4 H)-diones. J Org Chem 2018; 83:3348-3353. [PMID: 29400968 DOI: 10.1021/acs.joc.7b02961] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The palladium-catalyzed cross-coupling reaction of aryl halides with isoquinoline-1,3(2 H,4 H)-diones for the synthesis of 4-aryl isoquinoline-1,3(2 H,4 H)-diones was developed. The reaction conditions exhibit remarkable compatibility with various aryl halides and isoquinoline-1,3(2 H,4 H)-diones, and the product could be conveniently transformed to 4-aryl tetrahydroisoquinolines. (±) Dichlorofensine was synthesized using this protocol in two steps with an overall yield of 71%.
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Affiliation(s)
- Yuanyong Yang
- School of Pharmacy , Guizhou Medical University , Guiyang 550004 , China.,State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
| | - Yingxian Li
- School of Pharmacy , Guizhou Medical University , Guiyang 550004 , China
| | - Cheng Cheng
- School of Pharmacy , Guizhou Medical University , Guiyang 550004 , China
| | - Guo Yang
- School of Pharmacy , Guizhou Medical University , Guiyang 550004 , China
| | - Jiquan Zhang
- School of Pharmacy , Guizhou Medical University , Guiyang 550004 , China.,State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
| | - Yi Zhang
- School of Pharmacy , Guizhou Medical University , Guiyang 550004 , China.,State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
| | - Yonglong Zhao
- School of Pharmacy , Guizhou Medical University , Guiyang 550004 , China.,State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
| | - Lin Zhang
- School of Pharmacy , Guizhou Medical University , Guiyang 550004 , China.,State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
| | - Chun Li
- School of Pharmacy , Guizhou Medical University , Guiyang 550004 , China.,State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China
| | - Lei Tang
- State Key Laboratory of Functions and Applications of Medicinal Plants , Guizhou Medical University , Guiyang 550014 , China.,State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica , Chinese Academy of Sciences , Shanghai 201203 , China
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7
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Mottinelli M, Leese MP, Potter BVL. Accessing simply-substituted 4-hydroxytetrahydroisoquinolines via Pomeranz-Fritsch-Bobbitt reaction with non-activated and moderately-activated systems. Beilstein J Org Chem 2017; 13:1871-1878. [PMID: 29062406 PMCID: PMC5629393 DOI: 10.3762/bjoc.13.182] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 08/17/2017] [Indexed: 11/23/2022] Open
Abstract
Background: 1,2,3,4-Tetrahydroisoquinolines (THIQs) are common motifs in alkaloids and in medicinal chemistry. Synthetic access to THIQs via the Pomeranz–Fritsch–Bobbit (PFB) methodology using mineral acids for deactivated, electron-poor aromatic systems, is scarcely represented in the literature. Here, the factors controlling the regiochemical outcome of cyclization are evaluated. Results: A double reductive alkylation was telescoped into a one-pot reaction delivering good to excellent yields of desired aminoacetals for cyclization. Cyclization of activated systems proceeded smoothly under standard PFB conditions, but for non-activated systems the use of HClO4 alone was effective. When cyclization was possible in both para- and ortho-positions to the substituent, 7-substituted derivatives were formed with significant amounts of 5-substituted byproduct. The formation of the 4-hydroxy-THIQs vs the 4-methoxy-THIQ products could be controlled through modification of the reaction concentration. In addition, while a highly-activated system exclusively cyclized to the indole, this seems generally highly disfavored. When competition between 6- and 7-ring formation was investigated in non-activated systems, 5,7,8,13-tetrahydro-6,13-methanodibenzo[c,f]azonine was exclusively obtained. Furthermore, selective ring closure in the para-position could be achieved under standard PFB conditions, while a double ring closure could be obtained utilizing HClO4. Conclusion: Reactivity differences in aminoacetal precursors can be employed to control cyclization using the PFB methodology. It is now possible to select confidently the right conditions for the synthesis of N-aryl-4-hydroxy-1,2,3,4-tetrahydroisoquinolines.
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Affiliation(s)
- Marco Mottinelli
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, BA2 7AY Bath, UK
| | - Mathew P Leese
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, BA2 7AY Bath, UK
| | - Barry V L Potter
- Wolfson Laboratory of Medicinal Chemistry, Department of Pharmacy and Pharmacology, University of Bath, Claverton Down, BA2 7AY Bath, UK.,Drug Discovery & Medicinal Chemistry, Department of Pharmacology, University of Oxford, Mansfield Road, Oxford, OX1 3QT, UK
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8
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Yıldız T, Küçük HB. An organocatalytic method for the synthesis of some novel xanthene derivatives by the intramolecular Friedel–Crafts reaction. RSC Adv 2017. [DOI: 10.1039/c6ra27094h] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An efficient organocatalytic method for the synthesis of new substituted 9-arylxanthenes (2a–2u) starting from diarylcarbinol compounds with an arenoxy group (1a–1u) has been developed using the intramolecular Friedel–Crafts reaction.
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Affiliation(s)
- Tülay Yıldız
- Istanbul University
- Faculty of Engineering, Department of Chemistry
- Istanbul
- Turkey
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9
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Lobben PC, Amin R, Chen BC, Cui W, Hu M, Isherwood M, Liu S, Nacro K, Miles B, Mobele B, Olson RE, Wang B, Yang YL, Zhao R. Enabling Synthesis of Triple Reuptake Inhibitor (+)-BMS-820836, a Potential Therapeutic Agent for the Treatment of Depression. Org Process Res Dev 2016. [DOI: 10.1021/acs.oprd.5b00261] [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]
Affiliation(s)
- Paul C. Lobben
- Chemical
Development, Bristol-Myers Squibb, One Squibb Drive, New Brunswick, New Jersey 08903, United States
| | - Rasidul Amin
- Chemical
Development Department, Albany Molecular Research, Inc., 21 Corporate
Circle, Albany, New York 12203, United States
| | - Bang-Chi Chen
- Discovery
Chemistry, Bristol-Myers Squibb Research and Development, Princeton, New Jersey 08543, United States
| | - Wenge Cui
- Medicinal
Chemistry Department, Albany Molecular Research, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Min Hu
- Medicinal
Chemistry Department, Albany Molecular Research, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Matthew Isherwood
- Medicinal
Chemistry Department, Albany Molecular Research, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Shuang Liu
- Medicinal
Chemistry Department, Albany Molecular Research, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Kassoum Nacro
- Medicinal
Chemistry Department, Albany Molecular Research, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Brandon Miles
- Chemical
Development Department, Albany Molecular Research, Inc., 21 Corporate
Circle, Albany, New York 12203, United States
| | - Bingidimi Mobele
- Chemical
Development Department, Albany Molecular Research, Inc., 21 Corporate
Circle, Albany, New York 12203, United States
| | - Richard E. Olson
- Neuroscience
Discovery Chemistry, Bristol-Myers Squibb Research and Development, 5 Research Parkway, Wallingford, Connecticut 06492, United States
| | - Bei Wang
- Discovery
Chemistry, Bristol-Myers Squibb Research and Development, Princeton, New Jersey 08543, United States
| | - Yuh-Lin Yang
- Medicinal
Chemistry Department, Albany Molecular Research, Inc., 26 Corporate Circle, Albany, New York 12203, United States
| | - Rulin Zhao
- Discovery
Chemistry, Bristol-Myers Squibb Research and Development, Princeton, New Jersey 08543, United States
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10
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Manna SK, Panda G. Synthesis of enantiomerically enriched indolines and tetrahydroisoquinolines from (S)-amino acid-derived chiral carbocations: an easy access to (3S,4R)-demethoxy-3-isopropyl diclofensine. Org Biomol Chem 2014; 12:8318-24. [DOI: 10.1039/c4ob00922c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Enantiomerically enriched indolines and tetrahydroisoquinolines were synthesized in high yields from easily accessible (S)-amino acid-derived chiral carbocations.
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Affiliation(s)
- Sudipta Kumar Manna
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031, India
| | - Gautam Panda
- Medicinal and Process Chemistry Division
- CSIR-Central Drug Research Institute
- Lucknow 226031, India
- Academy of Scientific and Innovative Research
- New Delhi 110001, India
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11
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Jumde VR, Iuliano A. Deoxycholic Acid-Derived Biaryl Phosphites as Versatile and Enantioselective Ligands in the Rhodium-Catalyzed Conjugate Addition of Arylboronic Acids to Nitroalkenes. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300619] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Moshkin VS, Sosnovskikh VY. Reaction of 5-aryloxazolidines with arylmagnesium bromides as a new route to N-benzyl-β-hydroxyphenethylamines as starting materials for the preparation of 4-aryl-1,2,3,4-tetrahydroisoquinolines. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.03.076] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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13
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Moshkin VS, Sosnovskikh VY. A one-pot synthesis of tetrahydroisoquinolin-4-ols via a novel acid-catalyzed rearrangement of 5-aryloxazolidines. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.02.087] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Magano J, Dunetz JR. Large-Scale Carbonyl Reductions in the Pharmaceutical Industry. Org Process Res Dev 2012. [DOI: 10.1021/op2003826] [Citation(s) in RCA: 292] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Javier Magano
- Chemical Research and Development, Pharmaceutical Sciences, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Joshua R. Dunetz
- Chemical Research and Development, Pharmaceutical Sciences, Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
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15
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Liébert C, Brinks MK, Capacci AG, Fleming MJ, Lautens M. Diastereoselective Intramolecular Friedel–Crafts Alkylation of Tetralins. Org Lett 2011; 13:3000-3. [DOI: 10.1021/ol2008236] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Clémence Liébert
- Davenport Chemical Laboratories, Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada, and Chemical Development and Catalysis Department, Solvias AG, Roemerpark 2, 4303 Kaiseraugst, Switzerland
| | - Marion K. Brinks
- Davenport Chemical Laboratories, Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada, and Chemical Development and Catalysis Department, Solvias AG, Roemerpark 2, 4303 Kaiseraugst, Switzerland
| | - Andrew G. Capacci
- Davenport Chemical Laboratories, Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada, and Chemical Development and Catalysis Department, Solvias AG, Roemerpark 2, 4303 Kaiseraugst, Switzerland
| | - Matthew J. Fleming
- Davenport Chemical Laboratories, Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada, and Chemical Development and Catalysis Department, Solvias AG, Roemerpark 2, 4303 Kaiseraugst, Switzerland
| | - Mark Lautens
- Davenport Chemical Laboratories, Department of Chemistry, University of Toronto, 80 St George Street, Toronto, Ontario M5S 3H6, Canada, and Chemical Development and Catalysis Department, Solvias AG, Roemerpark 2, 4303 Kaiseraugst, Switzerland
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16
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Lang F, Chen G, Li L, Xing J, Han F, Cun L, Liao J. Rhodium-catalyzed highly enantioselective addition of arylboronic acids to 2-nitrostyrenes by tert-butanesulfinylphosphine ligand. Chemistry 2011; 17:5242-5. [PMID: 21472806 DOI: 10.1002/chem.201100135] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Indexed: 11/06/2022]
Affiliation(s)
- Feng Lang
- Natural Products Research Centre, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, 610041, PR China
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17
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Yang YF, Shu XZ, Wei HL, Luo JY, Ali S, Liu XY, Liang YM. FeCl3-Mediated synthesis of polysubstituted tetrahydroquinolines via domino Mannich/Friedel–Crafts reactions of aldehydes and amines. Org Biomol Chem 2011; 9:5028-33. [DOI: 10.1039/c1ob05646h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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18
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Kommidi H, Balasubramaniam S, Aidhen IS. Weinreb amide based synthetic equivalents for convenient access to 4-aryl-1,2,3,4-tetrahydroisoquinolines. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.03.074] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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19
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Liang JT, Liu J, Shireman BT, Tran V, Deng X, Mani NS. A Practical Synthesis of Regioisomeric 6- and 7-Methoxytetrahydro-3-benzazepines. Org Process Res Dev 2010. [DOI: 10.1021/op900292j] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jimmy T. Liang
- Johnson & Johnson Pharmaceutical Research and Development, L.L.C., 3210 Merryfield Row, San Diego, California 92121, U.S.A
| | - Jing Liu
- Johnson & Johnson Pharmaceutical Research and Development, L.L.C., 3210 Merryfield Row, San Diego, California 92121, U.S.A
| | - Brock T. Shireman
- Johnson & Johnson Pharmaceutical Research and Development, L.L.C., 3210 Merryfield Row, San Diego, California 92121, U.S.A
| | - Vi Tran
- Johnson & Johnson Pharmaceutical Research and Development, L.L.C., 3210 Merryfield Row, San Diego, California 92121, U.S.A
| | - Xiaohu Deng
- Johnson & Johnson Pharmaceutical Research and Development, L.L.C., 3210 Merryfield Row, San Diego, California 92121, U.S.A
| | - Neelakandha S. Mani
- Johnson & Johnson Pharmaceutical Research and Development, L.L.C., 3210 Merryfield Row, San Diego, California 92121, U.S.A
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20
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Davoust M, Kitching J, Fleming M, Lautens M. Diastereoselective Benzylic Arylation of Tetralins. Chemistry 2010; 16:50-4. [DOI: 10.1002/chem.200902694] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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