1
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Król M, Ślifirski G, Kleps J, Podsadni P, Materek I, Kozioł AE, Herold F. The Synthesis and Absolute Configuration of Enantiomeric Pure (R)- and (S)-3-(piperidin-3-yl)-1H-Indole Derivatives. Int J Mol Sci 2022; 24:ijms24010517. [PMID: 36613958 PMCID: PMC9820373 DOI: 10.3390/ijms24010517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 12/29/2022] Open
Abstract
This article describes the synthesis of new chiral 3-(piperidin-3-yl)-1H-indole derivatives (R)-10a-c and (S)-11a-c from the corresponding diastereomers: (3R, 2R) and (3S, 2R)-2-[3-(1H-indol-3-yl)-1-piperidyl]-2-phenyl-acetamides (3R, 2R)-4a, (3R, 2R)-6b, (3R, 2R)-8c and (3S, 2R)-5a, (3S, 2R)-7b, (3S, 2R)-9c. Diastereomers were obtained by N-alkylation of derivatives of racemic 3-(piperidin-3-yl)-1H-indoles 1a-c using (S)-2-(4-toluenesulfonyloxy)-phenylacetic amide (S)-II. The same method was applied to obtain (3R, 2S)-methyl-2-[3-(1H-indole-3-yl)-1-piperidyl]-2-phenylacetate (3R, 2S)-2a and (3S, 2S)-methyl-2-[3-(1H-indole-3-yl)-1-piperidyl]-2-phenylacetate (3S, 2S)-3a diastereomers by treating amine 1a with (R)-2-(4-toluenesulfonyloxy)-phenylacetic acid methylester (R)-I. Systematic studies via single crystal X-ray crystallography were used to determine the molecular structure of the racemates 1a-c and the absolute configuration of the enantiomers. The solid racemates 1b and 1c were "true racemates" crystallizing in a centrosymmetric space group, while 1a formed a racemic conglomerate of homoenantiomeric crystals. The absolute configuration was determined for the enantiomeric pairs (R)-10a/(S)-11a, (R)-10b/(S)-11b, and (R)-12c/(S)-13c, as well as for (3S,2S)-3a. Spectra of 1H, 13CNMR, HPLC, and HRMS for diastereomers and enantiomers were consistent with the determined structures.
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Affiliation(s)
- Marek Król
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1, Banacha Street, 02-097 Warsaw, Poland
| | - Grzegorz Ślifirski
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1, Banacha Street, 02-097 Warsaw, Poland
- Correspondence:
| | - Jerzy Kleps
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1, Banacha Street, 02-097 Warsaw, Poland
| | - Piotr Podsadni
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1, Banacha Street, 02-097 Warsaw, Poland
| | - Ilona Materek
- Faculty of Chemistry, Maria Curie-Skłodowska University, 3, M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland
| | - Anna E. Kozioł
- Faculty of Chemistry, Maria Curie-Skłodowska University, 3, M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland
| | - Franciszek Herold
- Department of Drug Technology and Pharmaceutical Biotechnology, Faculty of Pharmacy, Medical University of Warsaw, 1, Banacha Street, 02-097 Warsaw, Poland
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2
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Hughes DL. Highlights of the Recent Patent Literature: Focus on Asymmetric Organocatalysis. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.2c00139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David L. Hughes
- Cidara Therapeutics, 6755 Mira Mesa Blvd., Suite 123-217, San Diego, California 92121, United States
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3
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Kerru N, Katari NK, Jonnalagadda SB. Critical trends in synthetic organic chemistry in terms of organocatalysis. PHYSICAL SCIENCES REVIEWS 2022. [DOI: 10.1515/psr-2021-0022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The utilization of small organic compounds as catalysts has advanced rapidly, and organocatalysis has emerged as a dominant technique complementary to metal-catalyzed organic conversions. The organocatalysis field has enhanced the progression of innovative approaches to make varied chiral molecules. Researchers have placed enormous effort towards designing and blending simpler organocatalysts to synthesize enantioselective molecules in good yields. This work emphasized the impact of enamine, iminium, hydrogen bonding, and phase transfer organocatalysts in organic synthesis. The monograph focused on the crucial methods to construct valuable molecules with high enantiomeric purity.
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Affiliation(s)
- Nagaraju Kerru
- Department of Chemistry , GITAM School of Science, GITAM University, Bengaluru Campus , Karnataka 561203 , India
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus , Chiltern Hills , Durban 4000 , South Africa
| | - Naresh Kumar Katari
- Department of Chemistry , School of Science, GITAM deemed to be University , Hyderabad , Telangana 502329 , India
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus , Chiltern Hills , Durban 4000 , South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus , Chiltern Hills , Durban 4000 , South Africa
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4
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Pal K, Sontakke GS, Volla CMR. Rh(II)‐Catalyzed Denitrogenative Reaction of 1,2,3‐Triazolyl Esters with Indoles or Arenes: Efficient Synthesis of Homotryptamines or Allylamines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000632] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kuntal Pal
- Department of ChemistryIndian Institute of Technology Bombay, Powai Mumbai 400076, India
| | - Geetanjali S. Sontakke
- Department of ChemistryIndian Institute of Technology Bombay, Powai Mumbai 400076, India
| | - Chandra M. R. Volla
- Department of ChemistryIndian Institute of Technology Bombay, Powai Mumbai 400076, India
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5
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Xing N, Huang J, Wang P, Luo L, Zheng S, He L. Novel one-pot synthesis of imidazolinones from esters: a concise synthesis of GSK2137305. Org Biomol Chem 2020; 18:2175-2181. [PMID: 32147677 DOI: 10.1039/c9ob02743b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new copper-catalyzed one-pot reaction resulted in the practical synthesis of imidazolinones in moderate yields from esters. The use of inexpensive copper iodide as the catalyst, (NH4)2CO3 as the nitrogen source and readily available starting materials makes this process economically viable. Applying this protocol to the synthesis of GSK2137305, a concise approach was developed to obtain GSK2137305 from the ester in only three steps with an overall yield of 26.9%.
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Affiliation(s)
- Naiguo Xing
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, Department of Medicinal Chemistry, West China School of Pharmacy, Sichuan University, Chengdu, Sichuan 610041, P. R. China.
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6
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Mohanta N, Nair K, Sutar DV, Gnanaprakasam B. A continuous-flow approach for the multi-gram scale synthesis of C2-alkyl- or β-amino functionalized 1,3-dicarbonyl derivatives and ondansetron drug using 1,3-dicarbonyls. REACT CHEM ENG 2020. [DOI: 10.1039/d0re00171f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Continuous flow application has been developed for the gram-scale synthesis of C2-alkyl- or β-amino functionalized 1,3-dicarbonyl derivatives and ondansetron drug.
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Affiliation(s)
- Nirmala Mohanta
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Pune
- Pune 411008
- India
| | - Krishna Nair
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Pune
- Pune 411008
- India
| | - Dasharath Vishambar Sutar
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Pune
- Pune 411008
- India
| | - Boopathy Gnanaprakasam
- Department of Chemistry
- Indian Institute of Science Education and Research (IISER) Pune
- Pune 411008
- India
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7
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Advances in the Asymmetric Total Synthesis of Natural Products Using Chiral Secondary Amine Catalyzed Reactions of α,β-Unsaturated Aldehydes. Molecules 2019; 24:molecules24183412. [PMID: 31546876 PMCID: PMC6767148 DOI: 10.3390/molecules24183412] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/14/2019] [Accepted: 09/19/2019] [Indexed: 11/16/2022] Open
Abstract
Chirality is one of the most important attributes for its presence in a vast majority of bioactive natural products and pharmaceuticals. Asymmetric organocatalysis methods have emerged as a powerful methodology for the construction of highly enantioenriched structural skeletons of the target molecules. Due to their extensive application of organocatalysis in the total synthesis of bioactive molecules and some of them have been used in the industrial synthesis of drugs have attracted increasing interests from chemists. Among the chiral organocatalysts, chiral secondary amines (MacMillan’s catalyst and Jorgensen’s catalyst) have been especially considered attractive strategies because of their impressive efficiency. Herein, we outline advances in the asymmetric total synthesis of natural products and relevant drugs by using the strategy of chiral secondary amine catalyzed reactions of α,β-unsaturated aldehydes in the last eighteen years.
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8
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Heravi MM, Zadsirjan V, Heydari M, Masoumi B. Organocatalyzed Asymmetric Friedel‐Crafts Reactions: An Update. CHEM REC 2019. [DOI: 10.1002/tcr.201800190] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Majid M. Heravi
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
| | - Vahideh Zadsirjan
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
| | - Masumeh Heydari
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
| | - Baharak Masoumi
- Department of ChemistrySchool of ScienceAlzahra University POBox 1993891176, Vanak Tehran Iran Tel.: +98 21 88044051 fax: +98 21 88041344
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Abstract
Enantioselective protonation, delivery of a proton to a carbanion intermediate, is the most straightforward and fundamental method for the preparation of a chiral tertiary carbon stereocenter. Recent efforts for this objective have been realized through enamine catalysis, which has now become a prominent catalytic strategy enabling a range of fascinating chiral transformations. This review will summarize recent advances in the field of enantioselective enamine protonation for the synthesis of optically active carbonyl compounds. Dynamic kinetic resolutions of α-substituted carbonyl compounds through enamine intermediates will be discussed as well.
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Affiliation(s)
- Niankai Fu
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
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10
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Nabil S, Al-Dossary AO. in vitro Cytotoxic Evaluation of Some New Synthesized Pyridazine Derivatives. ACTA ACUST UNITED AC 2019. [DOI: 10.14233/ajchem.2019.21832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A series of novel pyridazine, pyrazoles, pyrimidines derivatives have been synthesized through the reaction of chloropyridazine (1) with p-phenylenediamine to give compound 2. Diazotization of compound 2 followed by coupling with active methylene compounds namely acetylacetone, ethylcyanoacetate and/or ethylacetoacetate afforded novel hydrazons derivatives (4-6). The resulting hydrazons can have been cyclized using hydrazine hydrate and guanidine gave the corresponding pyrazoles (7-9) and pyimidine (10) derivatives. Reaction of compound 2 with acrylonitrile, aromatic aldehyde, p-chloroacetophenone and phenyl isothiocyanate gave compounds 11, 12a, 12b, 13 and 17, respectively. The latter compounds have been used in synthesis of some heterocyclic compounds. The cytotoxic activity of the most active compounds was assessed in vitro against breast carcinoma cell line (MCF-7), human liver cancer cell line (HEPG2), human colon cancer cell line (HCT). Compounds 4, 8 showed best activity against MCF-7 cell line, compounds 5, 13a showed best activity against HePG2 cell line and compound 10 showed best activity against HCT cell line.
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Affiliation(s)
- Sara Nabil
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
| | - Abeer Obaid Al-Dossary
- Department of Chemistry, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam 31441, Saudi Arabia
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11
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Wang C, Li N, Zhu WJ, Gong JF, Song MP. Asymmetric Michael Addition of 2-Acetyl Azaarenes to β-CF3-β-(3-indolyl)nitroalkenes Catalyzed by a Cobalt(II)/(imidazoline-oxazoline) Complex. J Org Chem 2018; 84:191-203. [DOI: 10.1021/acs.joc.8b02601] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Cong Wang
- College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Nan Li
- College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Wen-Jing Zhu
- College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Jun-Fang Gong
- College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
| | - Mao-Ping Song
- College of Chemistry and Molecular Engineering, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Zhengzhou University, Zhengzhou 450001, People’s Republic of China
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12
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Häggman NO, Zank B, Jun H, Kaldre D, Gleason JL. Diazepane Carboxylates as Organocatalysts in the Diels-Alder Reaction of α-Substituted Enals. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Nicklas O. Häggman
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
| | - Benjamin Zank
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
| | - HyunJune Jun
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
| | - Dainis Kaldre
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
| | - James L. Gleason
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
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13
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Kirsch JK, Manske JL, Wolfe JP. Pd-Catalyzed Alkene Carboheteroarylation Reactions for the Synthesis of 3-Cyclopentylindole Derivatives. J Org Chem 2018; 83:13568-13573. [PMID: 30351050 DOI: 10.1021/acs.joc.8b02165] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The Pd-catalyzed alkene carboheteroarylation of aryl and alkenyl triflate electrophiles bearing pendant alkenes with heteroaromatic nucleophiles affords substituted carbocycles with 3-indolyl or 3-pyrrolyl groups. The products are obtained in moderate to good yields, and the use of alkenyl triflate substrates produces products with high diastereoselectivities. The transformation is believed to proceed via a Friedel-Crafts-like reaction between the heteroaromatic nucleophile and an intermediate electrophilic palladium complex.
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Affiliation(s)
- Janelle K Kirsch
- Department of Chemistry , University of Michigan , 930 North University Avenue , Ann Arbor , Michigan 48109-1055 , United States
| | - Jenna L Manske
- Department of Chemistry , University of Michigan , 930 North University Avenue , Ann Arbor , Michigan 48109-1055 , United States
| | - John P Wolfe
- Department of Chemistry , University of Michigan , 930 North University Avenue , Ann Arbor , Michigan 48109-1055 , United States
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14
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Wang Y, Zhang ZM, Liu F, He Y, Zhang J. Ming-Phos/Gold(I)-Catalyzed Diastereo- and Enantioselective Synthesis of Indolyl-Substituted Cyclopenta[c]furans. Org Lett 2018; 20:6403-6406. [DOI: 10.1021/acs.orglett.8b02701] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Yidong Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Zhan-Ming Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Feng Liu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
| | - Yinyan He
- Department of Obstetrics and Gynecology, Shanghai General Hospital, Shanghai Jiaotong University, 100 Haining Road, Shanghai 200080, China
| | - Junliang Zhang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai 200062, P. R. China
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15
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Cabrero-Antonino JR, Adam R, Junge K, Beller M. Cobalt-catalysed reductive C-H alkylation of indoles using carboxylic acids and molecular hydrogen. Chem Sci 2017; 8:6439-6450. [PMID: 29163930 PMCID: PMC5632795 DOI: 10.1039/c7sc02117h] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/11/2017] [Indexed: 12/29/2022] Open
Abstract
The direct CH-alkylation of indoles using carboxylic acids is presented for the first time. The catalytic system based on the combination of Co(acac)3 and 1,1,1-tris(diphenylphosphinomethyl)-ethane (Triphos, L1), in the presence of Al(OTf)3 as co-catalyst, is able to perform the reductive alkylation of 2-methyl-1H-indole with a wide range of carboxylic acids. The utility of the protocol was further demonstrated through the C3 alkylation of several substituted indole derivatives using acetic, phenylacetic or diphenylacetic acids. In addition, a careful selection of the reaction conditions allowed to perform the selective C3 alkenylation of some indole derivatives. Moreover, the alkenylation of C2 position of 3-methyl-1H-indole was also possible. Control experiments indicate that the aldehyde, in situ formed from the carboxylic acid hydrogenation, plays a central role in the overall process. This new protocol enables the direct functionalization of indoles with readily available and stable carboxylic acids using a non-precious metal based catalyst and hydrogen as reductant.
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Affiliation(s)
- Jose R Cabrero-Antonino
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein-Straße 29a , 18059 Rostock , Germany .
| | - Rosa Adam
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein-Straße 29a , 18059 Rostock , Germany .
| | - Kathrin Junge
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein-Straße 29a , 18059 Rostock , Germany .
| | - Matthias Beller
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock , Albert-Einstein-Straße 29a , 18059 Rostock , Germany .
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16
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Kaur J, Chauhan P, Singh S, Chimni SS. Journey Heading towards Enantioselective Synthesis Assisted by Organocatalysis. CHEM REC 2017; 18:137-153. [DOI: 10.1002/tcr.201700020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Indexed: 12/27/2022]
Affiliation(s)
- Jasneet Kaur
- Department of Chemistry, U.G.C. Centre of Advanced Studies in Chemistry; Guru Nanak Dev University; Amritsar India
| | - Pankaj Chauhan
- Institute of Organic Chemistry; RWTH Aachen University, Germany
| | - Sarbjit Singh
- Department of Chemistry; University of Texas at Dallas, USA
| | - Swapandeep Singh Chimni
- Department of Chemistry, U.G.C. Centre of Advanced Studies in Chemistry; Guru Nanak Dev University; Amritsar India
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17
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Srivastava R, Al-Omary FA, El-Emam AA, Pathak SK, Karabacak M, Narayan V, Chand S, Prasad O, Sinha L. A combined experimental and theoretical DFT (B3LYP, CAM-B3LYP and M06-2X) study on electronic structure, hydrogen bonding, solvent effects and spectral features of methyl 1H-indol-5-carboxylate. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.02.084] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Larnaud F, Sulpizi A, Häggman NO, Hughes JME, Dewez DF, Gleason JL. Organocatalytic Michael Addition of Indoles to α-Substituted Enals by Using a Diazepane Carboxylate Catalyst. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700469] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Florent Larnaud
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
| | - Adamo Sulpizi
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
| | - Nicklas O. Häggman
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
| | - Jonathan M. E. Hughes
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
| | - Damien F. Dewez
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
| | - James L. Gleason
- Department of Chemistry; McGill University; 801 Sherbrooke W. H3A 0B8 Montreal QC Canada
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19
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Yao Y, Zhang M, Chen S, Xing M, Shu H. Utilization of Solid Acid SO4
2
−
/TiO2
as Catalyst to the Three-Component Mannich Reaction at Ambient Temperature. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.2825] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Yuanyong Yao
- Institute of Material and Chemical Engineering; Tongren University; Tongren 554300 People's Republic of China
| | - Meng Zhang
- Institute of Material and Chemical Engineering; Tongren University; Tongren 554300 People's Republic of China
| | - Shixue Chen
- Institute of Material and Chemical Engineering; Tongren University; Tongren 554300 People's Republic of China
| | - Mingming Xing
- Institute of Material and Chemical Engineering; Tongren University; Tongren 554300 People's Republic of China
| | - Hua Shu
- Institute of Material and Chemical Engineering; Tongren University; Tongren 554300 People's Republic of China
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20
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21
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Wallbaum J, Garve LKB, Jones PG, Werz DB. Ring-Opening Regio-, Diastereo-, and Enantioselective 1,3-Chlorochalcogenation of Cyclopropyl Carbaldehydes. Chemistry 2016; 22:18756-18759. [PMID: 27868248 PMCID: PMC6680189 DOI: 10.1002/chem.201605265] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Indexed: 12/16/2022]
Abstract
meso‐Cyclopropyl carbaldehydes are treated in the presence of an organocatalyst with sulfenyl and selenyl chlorides to afford 1,3‐chlorochalcogenated products. The transformation is achieved by a merged iminium–enamine activation. The enantioselective desymmetrization reaction, leading to three adjacent stereocenters, furnished the target products in complete regioselectivity and moderate to high diastereo‐ and enantioselectivities (d.r. up to 15:1 and e.r. up to 93:7).
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Affiliation(s)
- Jan Wallbaum
- Institute of Organic Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106, Braunschweig, Germany
| | - Lennart K B Garve
- Institute of Organic Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106, Braunschweig, Germany
| | - Peter G Jones
- Institute of Inorganic and Analytical Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106, Braunschweig, Germany
| | - Daniel B Werz
- Institute of Organic Chemistry, Technische Universität Braunschweig, Hagenring 30, 38106, Braunschweig, Germany
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Yoshida K, Itatsu Y, Fujino Y, Inoue H, Takao KI. Enantioselective Organocatalytic Construction of Spiroindane Derivatives by Intramolecular Friedel-Crafts-Type 1,4-Addition. Angew Chem Int Ed Engl 2016; 55:6734-8. [PMID: 27111396 DOI: 10.1002/anie.201601683] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Indexed: 12/27/2022]
Abstract
The highly enantioselective organocatalytic construction of spiroindanes containing an all-carbon quaternary stereocenter by intramolecular Friedel-Crafts-type 1,4-addition is described. The reaction was catalyzed by a cinchonidine-based primary amine and accelerated by water and p-bromophenol. A variety of spiro compounds containing quaternary stereocenters were obtained with excellent enantioselectivity (up to 95 % ee). The reaction was applied to the asymmetric formal synthesis of the spirocyclic natural products (-)-cannabispirenones A and B.
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Affiliation(s)
- Keisuke Yoshida
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
| | - Yukihiro Itatsu
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Yuta Fujino
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Hiroki Inoue
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan
| | - Ken-Ichi Takao
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
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23
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Yoshida K, Itatsu Y, Fujino Y, Inoue H, Takao KI. Enantioselective Organocatalytic Construction of Spiroindane Derivatives by Intramolecular Friedel-Crafts-Type 1,4-Addition. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201601683] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Keisuke Yoshida
- Department of Applied Chemistry; Keio University; Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yukihiro Itatsu
- Department of Applied Chemistry; Keio University; Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Yuta Fujino
- Department of Applied Chemistry; Keio University; Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Hiroki Inoue
- Department of Applied Chemistry; Keio University; Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
| | - Ken-ichi Takao
- Department of Applied Chemistry; Keio University; Hiyoshi, Kohoku-ku Yokohama 223-8522 Japan
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24
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Ranjbar S, Riente P, Rodríguez-Escrich C, Yadav J, Ramineni K, Pericàs MA. Polystyrene or Magnetic Nanoparticles as Support in Enantioselective Organocatalysis? A Case Study in Friedel–Crafts Chemistry. Org Lett 2016; 18:1602-5. [DOI: 10.1021/acs.orglett.6b00462] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sara Ranjbar
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science of Technology, Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Paola Riente
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science of Technology, Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Carles Rodríguez-Escrich
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science of Technology, Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Jagjit Yadav
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science of Technology, Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Kishore Ramineni
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science of Technology, Avda. Països Catalans, 16, 43007 Tarragona, Spain
| | - Miquel A. Pericàs
- Institute
of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science of Technology, Avda. Països Catalans, 16, 43007 Tarragona, Spain
- Department
de Química Orgànica, Universitat de Barcelona, 08080 Barcelona, Spain
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25
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Ma HL, Xie L, Zhang Z, Li JQ, Qin ZH, Fu B. Enantioselective Copper(II)-Catalyzed Conjugate Addition of Indoles to β-Substituted Unsaturated Acyl Phosphonates. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500923] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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26
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Shaabani A, Hooshmand SE. Isocyanide and Meldrum's acid-based multicomponent reactions in diversity-oriented synthesis: from a serendipitous discovery towards valuable synthetic approaches. RSC Adv 2016. [DOI: 10.1039/c6ra11701e] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Multicomponent reactions, which lead to synthesis of target compounds with inherent molecular diversity, greater efficiency and atom economy, are single step types of reactions made from three or more reactants attract the attention of all chemists.
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Affiliation(s)
- Ahmad Shaabani
- Faculty of Chemistry
- Shahid Beheshti University, G. C
- Tehran
- Iran
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27
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Bernardi L, Fochi M, Carbone R, Martinelli A, Fox ME, Cobley CJ, Kandagatla B, Oruganti S, Dahanukar VH, Carlone A. Organocatalytic Asymmetric Conjugate Additions to Cyclopent‐1‐enecarbaldehyde: A Critical Assessment of Organocatalytic Approaches towards the Telaprevir Bicyclic Core. Chemistry 2015; 21:19208-22. [DOI: 10.1002/chem.201503352] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Luca Bernardi
- Department of Industrial Chemistry “Toso Montanari” and, INSTM RU Bologna, Alma Mater Studiorum – University of Bologna, V. Risorgimento 4, 40136 Bologna (Italy)
| | - Mariafrancesca Fochi
- Department of Industrial Chemistry “Toso Montanari” and, INSTM RU Bologna, Alma Mater Studiorum – University of Bologna, V. Risorgimento 4, 40136 Bologna (Italy)
| | - Riccardo Carbone
- Department of Industrial Chemistry “Toso Montanari” and, INSTM RU Bologna, Alma Mater Studiorum – University of Bologna, V. Risorgimento 4, 40136 Bologna (Italy)
| | - Ada Martinelli
- Department of Industrial Chemistry “Toso Montanari” and, INSTM RU Bologna, Alma Mater Studiorum – University of Bologna, V. Risorgimento 4, 40136 Bologna (Italy)
| | - Martin E. Fox
- Chirotech Technology Centre, Dr. Reddy's Laboratories, 410 Cambridge Science Park, Milton Road, Cambridge CB4 0PE (UK)
| | - Christopher J. Cobley
- Chirotech Technology Centre, Dr. Reddy's Laboratories, 410 Cambridge Science Park, Milton Road, Cambridge CB4 0PE (UK)
| | - Bhaskar Kandagatla
- Center for Process Research & Innovation, Dr. Reddy's Institute of Life Science, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, Telangana (India)
| | - Srinivas Oruganti
- Center for Process Research & Innovation, Dr. Reddy's Institute of Life Science, University of Hyderabad Campus, Gachibowli, Hyderabad 500 046, Telangana (India)
| | - Vilas H. Dahanukar
- Innovation Plaza, Integrated Product Development Organization, Dr. Reddy's Laboratories Ltd. Bachupally, Qutubullapur Hyderabad 500 090, Telangana (India)
| | - Armando Carlone
- Chirotech Technology Centre, Dr. Reddy's Laboratories, 410 Cambridge Science Park, Milton Road, Cambridge CB4 0PE (UK)
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28
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Lu H, Liu JY, Li CG, Lin JB, Liang YM, Xu PF. A new chiral C1-symmetric NHC-catalyzed addition to α-aryl substituted α,β-disubstituted enals: enantioselective synthesis of fully functionalized dihydropyranones. Chem Commun (Camb) 2015; 51:4473-6. [DOI: 10.1039/c5cc00118h] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A new C1-symmetric biarylsaturated imidazolium exhibits a superior ability to enable previously unavailable transformation, and the corresponding fully functionalized dihydropyranones are efficiently synthesized.
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Affiliation(s)
- Hong Lu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jin-Yu Liu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Chen-Guang Li
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jun-Bing Lin
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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29
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Guevara-Pulido JO, Andrés JM, Pedrosa R. Organocatalytic Domino Michael-Heterocyclization Reaction of α,β-Unsaturated Aldehydes and α-Cyano Ketones: Synthesis of Enantioenriched 4,5,6-Trisubstituted 3,4-Dihydropyranones. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402982] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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30
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Dange NS, Hong BC, Lee GH. One-pot biomimetic total synthesis of yuehchukene via the organocatalytic alkylation–cyclization process of a sterically encumbered α-alkyl enal. RSC Adv 2014. [DOI: 10.1039/c4ra10222c] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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31
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Chandrasekhara Rao L, Satish Kumar N, Jagadeesh babu N, Meshram H. An efficient regioselective reaction of indole with 2H-chromenes for the synthesis of new 4H-chromenes in environmentally benign media. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.07.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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32
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33
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Spectroscopic (FT-IR, FT-Raman, and UV-visible) and quantum chemical studies on molecular geometry, Frontier molecular orbitals, NBO, NLO and thermodynamic properties of 1-acetylindole. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2014; 133:626-38. [PMID: 24996206 DOI: 10.1016/j.saa.2014.06.043] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 05/22/2014] [Accepted: 06/03/2014] [Indexed: 11/21/2022]
Abstract
Quantum chemical calculations of ground state energy, geometrical structure and vibrational wavenumbers of 1-acetylindole were carried out using density functional (DFT/B3LYP) method with 6-311++G(d,p) basis set. The FT-IR and FT-Raman spectra were recorded in the condensed state. The fundamental vibrational wavenumbers were calculated and a good correlation between experimental and scaled calculated wavenumbers has been accomplished. Electric dipole moment, polarizability and first static hyperpolarizability values of 1-acetylindole have been calculated at the same level of theory and basis set. The results show that the 1-acetylindole molecule possesses nonlinear optical (NLO) behavior with non-zero values. Stability of the molecule arising from hyper-conjugative interactions and charge delocalization has been analyzed using natural bond orbital (NBO) analysis. UV-Visible spectrum of the molecule was recorded in the region 200-500nm and the electronic properties like HOMO and LUMO energies and composition were obtained using TD-DFT method. The calculated energies and oscillator strengths are in good correspondence with the experimental data. The thermodynamic properties of the compound under investigation were calculated at different temperatures.
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34
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Desmarchelier A, Coeffard V, Moreau X, Greck C. Asymmetric organocatalytic functionalization of α,α-disubstituted aldehydes through enamine activation. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.01.056] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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35
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Organocatalytic Application of Enamine Intermediate and Hydrogen Bonding Interaction to Dissymmetric Transformation. CATALYSIS SURVEYS FROM ASIA 2014. [DOI: 10.1007/s10563-013-9162-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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36
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Pagoti S, Dutta D, Dash J. A Magnetoclick Imidazolidinone Nanocatalyst for Asymmetric 1,3‐Dipolar Cycloadditions. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300624] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Sreenivasarao Pagoti
- Department of Organic Chemistry, Indian Association for the Cultivation of Science Jadavpur, Kolkata – 700032, India
| | - Debasish Dutta
- Department of Organic Chemistry, Indian Association for the Cultivation of Science Jadavpur, Kolkata – 700032, India
| | - Jyotirmayee Dash
- Department of Organic Chemistry, Indian Association for the Cultivation of Science Jadavpur, Kolkata – 700032, India
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37
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Hong BC, Lin CW, Liao WK, Lee GH. Sequential Asymmetric Catalysis in Michael–Michael–Michael–Aldol Reactions: Merging Organocatalysis with Photoredox Catalysis in a One-Pot Enantioselective Synthesis of Highly Functionalized Decalines Bearing a Quaternary Carbon Stereocenter. Org Lett 2013; 15:6258-61. [DOI: 10.1021/ol403113c] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Bor-Cherng Hong
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Cheng-Wei Lin
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Wei-Kai Liao
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
| | - Gene-Hsiang Lee
- Department of Chemistry and Biochemistry, National Chung Cheng University, Chia-Yi, 621, Taiwan, R.O.C., and Instrumentation Center, National Taiwan University, Taipei, 106, Taiwan, R.O.C
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38
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Fu N, Zhang L, Luo S, Cheng JP. Chiral primary-amine-catalyzed conjugate addition to α-substituted vinyl ketones/aldehydes: divergent stereocontrol modes on enamine protonation. Chemistry 2013; 19:15669-81. [PMID: 24114835 DOI: 10.1002/chem.201302056] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2013] [Revised: 07/23/2013] [Indexed: 11/10/2022]
Abstract
Enantioselective protonation with a catalytic enamine intermediate represents a challenging, yet fundamentally important process for the synthesis of α-chiral carbonyls. We describe herein chiral primary-amine-catalyzed conjugate additions of indoles to both α-substituted acroleins and vinyl ketones. These reactions feature enamine protonation as the stereogenic step. A simple primary-tertiary vicinal diamine 1 with trifluoromethanesulfonic acid (TfOH) was found to enable both of the reactions of acroleins and vinyl ketones with good activity and high enantioselectivity. Detailed mechanistic studies reveal that these reactions are rate-limiting in iminium formation and they all involve a uniform H2 O/acid-bridged proton transfer in the stereogenic steps but divergent stereocontrol modes for the protonation stereoselectivity. For the reactions of α-branched acroleins, facial selections on H2 O-bridged protonation determine the enantioselectivity, which is enhanced by an OH⋅⋅⋅π interaction with indole as uncovered by DFT calculations. On the other hand, the stereoselectivity of the reactions with vinyl ketones is controlled according to the Curtin-Hammett principle in the CC bond-formation step, which precedes a highly stereospecific enamine protonation.
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Affiliation(s)
- Niankai Fu
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190 (P.R. China), Fax: (+86) 10-6255-4449
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39
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Pou A, Moyano A. Stereoselective Organocatalytic Approach to α,β-Disubstituted-β-amino Acids: A Short Enantioselective Synthesis of Cispentacin. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300197] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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40
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Cinar M, Karabacak M. Determination of conformational and spectroscopic features of ethyl trans-alfa-cyano-3-indole-acrylate compound: an experimental and quantum chemical study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 104:428-436. [PMID: 23274474 DOI: 10.1016/j.saa.2012.11.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 11/09/2012] [Accepted: 11/16/2012] [Indexed: 06/01/2023]
Abstract
The optimized geometrical structure, vibrational and electronic transitions, chemical shifts and non-linear optical properties of ethyl trans-alfa-cyano-3-indole-acrylate (C(14)H(12)N(2)O(2)) compound were presented in this study. The ground state geometrical structure and vibrational wavenumbers were carried out by using density functional (DFT/B3LYP) method with 6-311++G(d,p) as basis set. The vibrational spectra of title compound were recorded in solid state with FT-IR and FT-Raman in the range of 4000-400 cm(-1) and 4000-10 cm(-1), respectively. The fundamental assignments were done on the basis of the total energy distribution (TED) of the vibrational modes, calculated with scaled quantum mechanical (SQM) method. The (1)H, (13)C and DEPT NMR spectra were recorded in DMSO solution, and gauge-invariant atomic orbitals (GIAO) method was used to predict the isotropic chemical shifts. The UV-Vis absorption spectra of the compound were recorded in the range of 200-800 nm in various solvents of different polarity (acetone, benzene, chlorobenzene, chloroform, DMSO, ethanol, methanol and toluene). Solvent effects were calculated using TD-DFT and CIS method. To investigate the non-linear optical properties, the polarizability, anisotropy of polarizability and molecular first hyperpolarizability were computed. A detailed description of spectroscopic behaviors of compound was given based on the comparison of experimental measurements and theoretical computations.
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Affiliation(s)
- Mehmet Cinar
- Department of Science Education, Bayburt University, 69000 Bayburt, Turkey.
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41
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Erdmann N, Philipps AR, Atodiresei I, Enders D. An Asymmetric Organocatalytic Quadruple Cascade Initiated by a Friedel-Crafts-Type Reaction with Electron-Rich Arenes. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201201099] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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42
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Chen J, Geng ZC, Li N, Huang XF, Pan FF, Wang XW. Organocatalytic Asymmetric Michael Addition of Aliphatic Aldehydes to Indolylnitroalkenes: Access to Contiguous Stereogenic Tryptamine Precursors. J Org Chem 2013; 78:2362-72. [DOI: 10.1021/jo3024945] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jian Chen
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
| | - Zhi-Cong Geng
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
| | - Ning Li
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
| | - Xiao-Fei Huang
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
| | - Feng-Feng Pan
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
| | - Xing-Wang Wang
- Key Laboratory
of Organic Synthesis of Jiangsu Province,
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, People’s
Republic of China
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43
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Hanessian S, Stoffman EJ. Enantioselective synthesis of 3-substituted tryptamines as core components of central nervous system drugs and indole natural products. CAN J CHEM 2013. [DOI: 10.1139/cjc-2012-0221] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Application of the MacMillan iminium ion Michael and Friedel–Crafts type reactions to γ-amino α,β-unsaturated butanals led to the corresponding β-substituted butanals in good yields and high enantioselectivities. The products could be useful intermediates in the synthesis of indole-based central nervous system (CNS) drugs and natural products.
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Affiliation(s)
- Stephen Hanessian
- Department of Chemistry, Université de Montréal, Montreal, QC H3C 3J7, Canada
| | - Elia J.L. Stoffman
- Department of Chemistry, Université de Montréal, Montreal, QC H3C 3J7, Canada
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44
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Zhu JL, Zhang Y, Liu C, Zheng AM, Wang W. Insights into the Dual Activation Mechanism Involving Bifunctional Cinchona Alkaloid Thiourea Organocatalysts: An NMR and DFT Study. J Org Chem 2012; 77:9813-25. [DOI: 10.1021/jo302133n] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jun-Ling Zhu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Yong Zhang
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Chong Liu
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
| | - An-Min Zheng
- State Key Laboratory of Magnetic
Resonance and Atomic and Molecular Physics, Wuhan Center for Magnetic
Resonance, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan, Hubei 430071, China
| | - Wei Wang
- State Key Laboratory of Applied
Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
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45
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Kravina AG, Mahatthananchai J, Bode JW. Enantioselektive NHC-katalysierte Anellierung von trisubstituierten Enalen und cyclischenN-Sulfonyliminen über α,β-ungesättigte Acylazoliumionen. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201204145] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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46
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Kravina AG, Mahatthananchai J, Bode JW. Enantioselective, NHC-catalyzed annulations of trisubstituted enals and cyclic N-sulfonylimines via α,β-unsaturated acyl azoliums. Angew Chem Int Ed Engl 2012; 51:9433-6. [PMID: 22907817 DOI: 10.1002/anie.201204145] [Citation(s) in RCA: 195] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2012] [Indexed: 01/08/2023]
Affiliation(s)
- Alberto G Kravina
- Laboratorium für Organische Chemie, Department of Chemistry and Applied Biosciences, ETH Zürich, Wolfgang Pauli Strasse 10, 8093 Zürich, Switzerland
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47
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Gohain M, Marais C, Bezuidenhoudt BC. An Al(OTf)3-catalyzed environmentally benign process for the propargylation of indoles. Tetrahedron Lett 2012. [DOI: 10.1016/j.tetlet.2012.06.095] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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48
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Riente P, Yadav J, Pericàs MA. A Click Strategy for the Immobilization of MacMillan Organocatalysts onto Polymers and Magnetic Nanoparticles. Org Lett 2012; 14:3668-71. [DOI: 10.1021/ol301515d] [Citation(s) in RCA: 100] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Paola Riente
- Institute of Chemical Research of Catalonia, Av. Països Catalans, 16, 43007 Tarragona, Spain, and Departament de Química Orgànica, Universitat de Barcelona, c/Martí I Franqués 1-11, 08080 Barcelona, Spain
| | - Jagjit Yadav
- Institute of Chemical Research of Catalonia, Av. Països Catalans, 16, 43007 Tarragona, Spain, and Departament de Química Orgànica, Universitat de Barcelona, c/Martí I Franqués 1-11, 08080 Barcelona, Spain
| | - Miquel A. Pericàs
- Institute of Chemical Research of Catalonia, Av. Països Catalans, 16, 43007 Tarragona, Spain, and Departament de Química Orgànica, Universitat de Barcelona, c/Martí I Franqués 1-11, 08080 Barcelona, Spain
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Enders D, Greb A, Deckers K, Selig P, Merkens C. Quadruple Domino Organocatalysis: An Asymmetric Aza-Michael/Michael/Michael/Aldol Reaction Sequence Leading to Tetracyclic Indole Structures with Six Stereocenters. Chemistry 2012; 18:10226-9. [DOI: 10.1002/chem.201201493] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2012] [Indexed: 01/03/2023]
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50
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Roy S, Chen K. Three-Component Organocascade Kinetic Resolution of Racemic Nitroallylic Acetates via Sequential Iminium/Enamine Asymmetric Catalysis. Org Lett 2012; 14:2496-9. [DOI: 10.1021/ol300783e] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Suparna Roy
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan 116, ROC
| | - Kwunmin Chen
- Department of Chemistry, National Taiwan Normal University, Taipei, Taiwan 116, ROC
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