1
|
Park JH, Maity P, Paladhi S, Bae HY, Song CE. Enantioselective Synthesis of Chiral 2-Nitroallylic Amines via Cooperative Cation-Binding Catalysis. Chemistry 2023; 29:e202301787. [PMID: 37370249 DOI: 10.1002/chem.202301787] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Revised: 06/23/2023] [Accepted: 06/27/2023] [Indexed: 06/29/2023]
Abstract
Chiral allylic amines are valuable building blocks for biologically important compounds and natural products. In this study, we present the use of cooperative cation-binding catalysis as an efficient method for synthesizing chiral allylic amines. By utilizing a chiral oligoEG and potassium fluoride as a cation-binding catalyst and base, respectively, a wide range of biologically relevant chiral 2-nitroallylic amines are obtained with excellent enantioselectivities (up to >99 % ee) through the organocatalytic asymmetric aza-Henry-like reaction of β-monosubstituted and β,β-disubstituted nitroalkenes with α-amidosulfones as imine precursors. Extensive experimental studies are presented to illustrate plausible mechanisms. Preliminary use of a chiral 2-nitroallylic amine as a Michael acceptor demonstrated its potential application for diversity-oriented synthesis of bioactive compounds.
Collapse
Affiliation(s)
- Jin Hyun Park
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea
| | - Pintu Maity
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea
| | - Sushovan Paladhi
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea
- Department of Chemistry, Thakur Prasad Singh (T.P.S.) College, Patna, 800001, India
| | - Han Yong Bae
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea
| | - Choong Eui Song
- Department of Chemistry, Sungkyunkwan University, Suwon, 16419, Korea
| |
Collapse
|
2
|
Smajlagic I, Johnston JN, Dudding T. Secondary Orbital Effect Involving Fluorine is Responsible for Substrate-Controlled Diastereodivergence in the Catalyzed syn-aza-Henry Reaction of α-Fluoronitroalkanes. Chemistry 2023; 29:e202204066. [PMID: 36607705 DOI: 10.1002/chem.202204066] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/07/2023]
Abstract
The fluorine atom is a powerful, yet enigmatic influence on chemical reactions. True to form, fluorine was recently discovered to effect diastereodivergence in an enantioselective aza-Henry reaction, resulting in a very rare case of syn-β-amino nitroalkane products. More bewildering was the observation of an apparent hierarchy of substituents within this substrate-controlled behavior: Ph>F>alkyl. These cases have now been examined comprehensively by computational methods, including both non-fluorinated and α-fluoro nitronate additions to aldimines catalyzed by a chiral bis(amidine) [BAM] proton complex. This study revealed the network of non-covalent interactions that dictate anti- (α-aryl) versus syn-selectivity (α-alkyl) using α-fluoronitronate nucleophiles, and an underlying secondary orbital interaction between fluorine and the activated azomethine.
Collapse
Affiliation(s)
- Ivor Smajlagic
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St., Catharines, ON L2S 3A1, Canada
| | - Jeffrey N Johnston
- Department of Chemistry and Institute of Chemical Biology, Vanderbilt University Nashville, Tennessee, 37235, USA
| | - Travis Dudding
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St., Catharines, ON L2S 3A1, Canada
| |
Collapse
|
3
|
Bing JA, Schley ND, Johnston JN. Fluorine-induced diastereodivergence discovered in an equally rare enantioselective syn-aza-Henry reaction. Chem Sci 2022; 13:2614-2623. [PMID: 35356677 PMCID: PMC8890141 DOI: 10.1039/d1sc05910f] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 02/03/2022] [Indexed: 11/21/2022] Open
Abstract
Attention to the aza-Henry reaction, particularly over the past two decades, has resulted in a wide range of effective catalysts for the enantio- and diastereoselective versions, driven by the versatility of the β-amino nitroalkane products as precursors to secondary amines and vic-diamines. Despite this broad effort, syn-diastereoselective variants are exceedingly rare. We have discovered a subset of α-fluoro nitroalkane additions that are characterized by an unusual crossover in diastereoselection, often delivering the products with high selectivities. We report here a rigorous comparative analysis of non-fluorinated and α-fluoro nitroalkanes in their additions to azomethines. Both homogeneous and heterogeneous catalysis were applied to probe the possibility that this phenomenon might be more widely operative in the enantioselective additions of fluorine-substituted carbon nucleophiles. A complete correlation within four categories is described that uncovered a clear trend, while revealing a dramatic and distinct reversal of diastereoselection that would normally go undetected.
Collapse
Affiliation(s)
- Jade A Bing
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University Nashville Tennessee 37235-1822 USA
| | - Nathan D Schley
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University Nashville Tennessee 37235-1822 USA
| | - Jeffrey N Johnston
- Department of Chemistry, Vanderbilt Institute of Chemical Biology, Vanderbilt University Nashville Tennessee 37235-1822 USA
| |
Collapse
|
4
|
Struble TJ, Smajlagic I, Foy H, Dudding T, Johnston JN. DFT-Based Stereochemical Rationales for the Bifunctional Brønsted Acid/Base-Catalyzed Diastereodivergent and Enantioselective aza-Henry Reactions of α-Nitro Esters. J Org Chem 2021; 86:15606-15617. [PMID: 34669416 DOI: 10.1021/acs.joc.1c02112] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A pair of chiral bis(amidine) [BAM] proton complexes provide reagent (catalyst)-controlled, highly diastereo- and enantioselective direct aza-Henry reactions leading to α-alkyl-substituted α,β-diamino esters. A C2-symmetric ligand provides high anti-selectivity, while a nonsymmetric congener exhibits syn-selectivity in this example of diastereodivergent, enantioselective catalysis. A detailed computational analysis is reported for the first time, one that supports distinct models for selectivity resulting from the more hindered binding cavity of the C1-symmetric ligand. Binding in this congested pocket accommodates four hydrogen bond contacts among ligands and substrates, ultimately favoring a pre-syn arrangement highlighted by pyridinium-azomethine activation and quinolinium-nitronate activation. The complementary transition states reveal a wide range of alternatives. Comparing the C1- and C2-symmetric catalysts highlights distinct electrophile binding orientations despite their common hydrogen bond donor-acceptor features. Among the factors driving unusual high syn-diastereoselection are favorable dispersion forces that leverage the anthracenyl substituent of the C1-symmetric ligand.
Collapse
Affiliation(s)
- Thomas J Struble
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - Ivor Smajlagic
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Hayden Foy
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Travis Dudding
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Jeffrey N Johnston
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235, United States
| |
Collapse
|
5
|
Majee D, Goud SB, Guin S, Rathor SS, Patel AK, Samanta S. Reversal Reactivity of β‐Alkylnitroalkenes as 1,3‐Binucleophiles: Application to Nitroarenes using Organocatalysis. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Debashis Majee
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| | - S Banuprakash Goud
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| | - Soumitra Guin
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| | - Shikha S. Rathor
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| | - Ashvani K. Patel
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| | - Sampak Samanta
- Department Chemistry Indian Institute of Technology Indore Simrol 453552 Indore India
| |
Collapse
|
6
|
Marčeková M, Gerža P, Šoral M, Moncol J, Berkeš D, Kolarovič A, Jakubec P. Crystallization Does It All: An Alternative Strategy for Stereoselective Aza-Henry Reaction. Org Lett 2019; 21:4580-4584. [PMID: 31184186 DOI: 10.1021/acs.orglett.9b01489] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An efficient and experimentally straightforward method for the stereoselective synthesis of a variety of β-nitro-α-amino carboxylic acids via aza-Henry (nitro-Mannich) reaction of aldimines is disclosed, yielding either anti- or a rarely reported syn-configuration. The reaction operates directly on free glyoxylic acid and generates imine species in situ. Crystallization-controlled diastereoselectivity enables isolation of the target compounds in high enantio- and diastereomeric purities by a simple filtration.
Collapse
Affiliation(s)
- Michaela Marčeková
- Faculty of Chemical and Food Technology , Slovak University of Technology , Radlinského 9 , 812 37 Bratislava , Slovakia
| | - Peter Gerža
- Faculty of Chemical and Food Technology , Slovak University of Technology , Radlinského 9 , 812 37 Bratislava , Slovakia
| | - Michal Šoral
- Faculty of Chemical and Food Technology , Slovak University of Technology , Radlinského 9 , 812 37 Bratislava , Slovakia
| | - Ján Moncol
- Faculty of Chemical and Food Technology , Slovak University of Technology , Radlinského 9 , 812 37 Bratislava , Slovakia
| | - Dušan Berkeš
- Faculty of Chemical and Food Technology , Slovak University of Technology , Radlinského 9 , 812 37 Bratislava , Slovakia
| | - Andrej Kolarovič
- Department of Chemistry, Faculty of Education , Trnava University , Priemyselná 4 , 918 43 Trnava , Slovakia
| | - Pavol Jakubec
- Faculty of Chemical and Food Technology , Slovak University of Technology , Radlinského 9 , 812 37 Bratislava , Slovakia
| |
Collapse
|
7
|
Gabrielli S, Mariotti N, Chiurchiù E, Ballini R, Petrini M, Palmieri A. Synthetic Approach to the Preparation of (2-Acetoxy)allyl Nitro Compounds. J Org Chem 2018; 83:12855-12862. [PMID: 30251854 DOI: 10.1021/acs.joc.8b01744] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A synthetic approach to a new class of allyl nitro derivatives is reported. (2-Acetoxy)allyl nitro compounds have been prepared for the first time in a four-step procedure by a preliminary reaction of nitroalkanes with 2-(phenylselenyl)acetaldehyde. After the acetylation of the obtained nitro alcohols, the unsaturation is installed by an oxidation reaction involving the phenylselenyl group followed by a thermal elimination. The oxidation process is accomplished under flow conditions ensuring a notable lowering of overoxidation by products observed in batch.
Collapse
Affiliation(s)
- Serena Gabrielli
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| | - Nicole Mariotti
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| | - Elena Chiurchiù
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| | - Roberto Ballini
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| | - Marino Petrini
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| | - Alessandro Palmieri
- Green Chemistry Group, School of Science and Technology, Chemistry Division , University of Camerino , Via S. Agostino 1 , Camerino , Macerata 62032 , Italy
| |
Collapse
|
8
|
Chai Y, Zhou J, Wu Y, Feng Y, Wang P, Chen Y, Wang X, Zhao B, Zhang Q. Organo-Catalyzed Regio- and Geometry-Specific Construction of β-Hydroxyl-α-vinyl Carboxylic Esters: Substrate Scope, Mechanistic Insights, and Applications. J Org Chem 2018; 83:10476-10486. [PMID: 30088930 DOI: 10.1021/acs.joc.8b01510] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A green protocol has been developed for the synthesis of β-hydroxyl-α-vinyl carboxylic esters using aldehydes and α,β-unsaturated esters bearing an activated γ proton as starting materials under Morita-Baylis-Hillman (MBH) reaction conditions. Diverse β-hydroxyl-α-vinyl carboxylic esters have been synthesized regiospecifically in moderate to good yields with only E geometric selectivity. Other remarkable features include atom efficiency, environmental benignancy, and mild reaction conditions. Furthermore, the reaction products could be readily converted into tetrahydrofuran, dihydrofuran, and furan derivatives.
Collapse
Affiliation(s)
- Yonghai Chai
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China.,School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China
| | - JinJin Zhou
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China.,School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China
| | - Yanbin Wu
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China.,School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China
| | - Yingle Feng
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China.,School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China
| | - Panru Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China.,School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China
| | - Yange Chen
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China.,School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China
| | - Xinying Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China.,School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China
| | - Beibei Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, MOE , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China.,School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China
| | - Qi Zhang
- School of Chemistry and Chemical Engineering , Shaanxi Normal University , Xi'an , Shaanxi 710119 , P.R. China
| |
Collapse
|
9
|
Sun YL, Wei Y, Shi M. Phosphine catalyzed δ-carbon addition and isomerization of alkynones to ketimines: the preparation of 1,3-diene substituted dihydroquinazolinones and 3-aminooxindoles. Org Chem Front 2018. [DOI: 10.1039/c7qo00772h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel strategy of the phosphine catalyzed addition of alkynones to ketimines for the synthesis of α-amino diene derivatives has been developed for the first time, thus providing diene incorporating α-amino products in moderate to excellent yields.
Collapse
Affiliation(s)
- Yao-Liang Sun
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry
- University of Chinese Academy of Sciences
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals
- School of Chemistry & Molecular Engineering
- East China University of Science and Technology
- Shanghai 200237
- China
| |
Collapse
|
10
|
Lu N, Bai F, Fang Y, Wei Z, Cao J, Liang D, Lin Y, Duan H. Bifunctional Phase-Transfer Catalysts Catalyzed Diastereo- and Enantioselective Aza-Henry Reaction of β,γ-Unsaturated Nitroalkenes With Amidosulfones. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700787] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ning Lu
- Department of Organic Chemistry, College of Chemistry; Jilin University; 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Fuquan Bai
- Institute of Theoretical Chemistry; Jilin University; Changchun 130023 People's Republic of China
| | - Yanhong Fang
- Department of Organic Chemistry, College of Chemistry; Jilin University; 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Zhonglin Wei
- Department of Organic Chemistry, College of Chemistry; Jilin University; 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Jungang Cao
- Department of Organic Chemistry, College of Chemistry; Jilin University; 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Dapeng Liang
- Department of Organic Chemistry, College of Chemistry; Jilin University; 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Yingjie Lin
- Department of Organic Chemistry, College of Chemistry; Jilin University; 2699 Qianjin Street Changchun 130012 People's Republic of China
| | - Haifeng Duan
- Department of Organic Chemistry, College of Chemistry; Jilin University; 2699 Qianjin Street Changchun 130012 People's Republic of China
| |
Collapse
|
11
|
Pellissier H. Recent developments in the asymmetric organocatalytic Morita−Baylis−Hillman reaction. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.04.008] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
12
|
Choudhary MK, Menapara T, Tak R, Kureshy RI, Khan NUH. Asymmetric Synthesis of 3-Amino Oxindoles Using Isatin-DerivedN-Boc Ketimines with Activated Nitroolefin Catalyzed by Organocatalysts. ChemistrySelect 2017. [DOI: 10.1002/slct.201700032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Manoj K. Choudhary
- Division of Inorganic Material and Catalysis; Central Salt and Marine Chemical Research Institute (CSMCRI); Bhavngar- 364002, Gujrat India
- Academy of Scientific and Innovative Research (AcSIR); Central Salt and Marine Chemical Research Institute (CSMCRI); Council of Scientific and Industial Research (CSIR); G.B. Marg Bhavnagar- 364002, Gujrat India
| | - Tusharkumar Menapara
- Division of Inorganic Material and Catalysis; Central Salt and Marine Chemical Research Institute (CSMCRI); Bhavngar- 364002, Gujrat India
- Academy of Scientific and Innovative Research (AcSIR); Central Salt and Marine Chemical Research Institute (CSMCRI); Council of Scientific and Industial Research (CSIR); G.B. Marg Bhavnagar- 364002, Gujrat India
| | - Rajkumar Tak
- Division of Inorganic Material and Catalysis; Central Salt and Marine Chemical Research Institute (CSMCRI); Bhavngar- 364002, Gujrat India
- Academy of Scientific and Innovative Research (AcSIR); Central Salt and Marine Chemical Research Institute (CSMCRI); Council of Scientific and Industial Research (CSIR); G.B. Marg Bhavnagar- 364002, Gujrat India
| | - Rukhsana I. Kureshy
- Division of Inorganic Material and Catalysis; Central Salt and Marine Chemical Research Institute (CSMCRI); Bhavngar- 364002, Gujrat India
- Academy of Scientific and Innovative Research (AcSIR); Central Salt and Marine Chemical Research Institute (CSMCRI); Council of Scientific and Industial Research (CSIR); G.B. Marg Bhavnagar- 364002, Gujrat India
| | - Noor-ul H. Khan
- Division of Inorganic Material and Catalysis; Central Salt and Marine Chemical Research Institute (CSMCRI); Bhavngar- 364002, Gujrat India
- Academy of Scientific and Innovative Research (AcSIR); Central Salt and Marine Chemical Research Institute (CSMCRI); Council of Scientific and Industial Research (CSIR); G.B. Marg Bhavnagar- 364002, Gujrat India
| |
Collapse
|
13
|
Sun YL, Wei Y, Shi M. Applications of Chiral Thiourea-Amine/Phosphine Organocatalysts in Catalytic Asymmetric Reactions. ChemCatChem 2017. [DOI: 10.1002/cctc.201601144] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Yao-Liang Sun
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 P.R. China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry; University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Ling Ling Road Shanghai 200032 P.R. China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Mei Long Road Shanghai 200237 P.R. China
- State Key Laboratory of Organometallic Chemistry; University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry; Chinese Academy of Sciences; 345 Ling Ling Road Shanghai 200032 P.R. China
| |
Collapse
|
14
|
Xiao Y, Lin JB, Zhao YN, Liu JY, Xu PF. Exploring the Reactivity of Nitro-Activated 1,3-Enynes in an Organocatalytic One-Pot, Three-Component Coupling Reaction: A Tandem Catalytic Approach to a Novel 3-Nitrochroman Scaffold. Org Lett 2016; 18:6276-6279. [DOI: 10.1021/acs.orglett.6b03073] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Yu Xiao
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jun-Bing Lin
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yin-Na Zhao
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Jin-Yu Liu
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Peng-Fei Xu
- State Key Laboratory of Applied
Organic Chemistry, and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| |
Collapse
|
15
|
Choudhary MK, Rao Ganga VS, Menapara T, Kureshy RI, Khan NUH, Abdi SHR, Suresh E. Cascade reaction for the construction of CF3 containing tetrasubstituted furan ring. RSC Adv 2016. [DOI: 10.1039/c6ra19782e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Activated olefins are well known nucleophiles, but proton abstraction from the substituted α-methyl group in nitroolefin is rare.
Collapse
Affiliation(s)
- Manoj K. Choudhary
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Venkata Subba Rao Ganga
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Tusharkumar Menapara
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Rukhsana I. Kureshy
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Noor-ul H. Khan
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Sayed H. R. Abdi
- Inorganic Materials and Catalysis Division
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Bhavnagar-364 002
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Eringathodi Suresh
- Academy of Scientific and Innovative Research (AcSIR)
- Central Salt and Marine Chemicals Research Institute (CSMCRI)
- Council of Scientific & Industrial Research (CSIR)
- Bhavnagar-364 002
- India
| |
Collapse
|
16
|
Mane V, Pandey J, Ayyagari N, Dey C, Kale R, Namboothiri INN. Synthesis of hydrazinoheterocycles from Morita–Baylis–Hillman adducts of nitroalkenes with azodicarboxylates. Org Biomol Chem 2016; 14:2427-38. [DOI: 10.1039/c5ob02656c] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Hydrazinonitroalkenes derived from nitroalkenes and azodicarboxylates are excellent substrates for the synthesis of hitherto unreported hydrazinotriazoles and hydrazinodihydrofurans.
Collapse
Affiliation(s)
- Vaijinath Mane
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Jyoti Pandey
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Narasihmam Ayyagari
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Chandan Dey
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Raju Kale
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | | |
Collapse
|
17
|
Anderson JC, Campbell IB, Campos S, Shannon J, Tocher DA. Stereoselective synthesis of 1,2-diamine containing indolines by a conjugate addition nitro-Mannich reaction. Org Biomol Chem 2015; 13:170-7. [PMID: 25351774 DOI: 10.1039/c4ob01793e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A conjugate addition nitro-Mannich reaction followed by nitro reduction and intramolecular N-arylation gives diastereomerically pure substituted 1,2-diamine containing indolines. Placing the N-arylation cyclisation handle on the imine precursor derived from an ortho-bromine substituted aromatic aldehyde gave the corresponding β-nitroamines in 55-72% yields as single diastereoisomers. Nitro reduction was effected with modified quantities of Zn/HCl and a subsequent Pd(0) catalysed Buchwald Hartwig cyclisation gave indoline products in 40-70% yields as single diastereoisomers.
Collapse
Affiliation(s)
- James C Anderson
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, UK.
| | | | | | | | | |
Collapse
|
18
|
Oyaizu K, Uraguchi D, Ooi T. Vinylogy in nitronates: utilization of α-aryl conjugated nitroolefins as a nucleophile for a highly stereoselective aza-Henry reaction. Chem Commun (Camb) 2015; 51:4437-9. [DOI: 10.1039/c4cc10261d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Vinylogous nitronates generated from α,β-disubstituted nitroolefins undergo stereoselective bond formation with aldimines at the sterically encumbered α-position, establishing contiguous tertiary–quaternary stereocenters.
Collapse
Affiliation(s)
- Keigo Oyaizu
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Applied Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | - Daisuke Uraguchi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Applied Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| | - Takashi Ooi
- Institute of Transformative Bio-Molecules (WPI-ITbM) and Department of Applied Chemistry
- Graduate School of Engineering
- Nagoya University
- Nagoya 464-8603
- Japan
| |
Collapse
|
19
|
Gopi E, Kumar T, Menna-Barreto RFS, Valença WO, da Silva Júnior EN, Namboothiri INN. Imidazoles from nitroallylic acetates and α-bromonitroalkenes with amidines: synthesis and trypanocidal activity studies. Org Biomol Chem 2015; 13:9862-71. [DOI: 10.1039/c5ob01444a] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
One-pot cascade reactions of amidines with nitroallylic acetates and α-bromonitroalkenes provide functionalized imidazoles that exhibit trypanocidal activity.
Collapse
Affiliation(s)
- Elumalai Gopi
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
| | - Tarun Kumar
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400 076
- India
| | | | - Wagner O. Valença
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | | | | |
Collapse
|
20
|
Mane V, Kumar T, Pradhan S, Katiyar S, Namboothiri INN. One-pot regioselective synthesis of functionalized and fused furans from Morita–Baylis–Hillman and Rauhut–Currier adducts of nitroalkenes. RSC Adv 2015. [DOI: 10.1039/c5ra11471c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Functionalized and fused furans were synthesized by a one-pot regioselective cascade reaction from Morita–Baylis–Hillman acetates and Rauhut–Currier adducts of nitroalkenes.
Collapse
Affiliation(s)
- Vaijinath Mane
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Tarun Kumar
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Sourav Pradhan
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Savita Katiyar
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | | |
Collapse
|
21
|
Takizawa S, Rémond E, Arteaga FA, Yoshida Y, Sridharan V, Bayardon J, Jugé S, Sasai H. P-chirogenic organocatalysts: application to the aza-Morita-Baylis-Hillman (aza-MBH) reaction of ketimines. Chem Commun (Camb) 2014; 49:8392-4. [PMID: 23939137 DOI: 10.1039/c3cc44549f] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The P-chirogenic organocatalysts were found to promote the enantioselective aza-Morita-Baylis-Hillman reaction of ketimines derived from acyclic α-keto esters. In the P-chirogenic organocatalyzed aza-MBH reactions, α,α-disubstituted α-amino acid derivatives were obtained in high yields with high enantioselectivities (up to 97% ee).
Collapse
Affiliation(s)
- Shinobu Takizawa
- The Institute of Scientific and Industrial Research (ISIR), Osaka University, Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
22
|
Nair RV, Sanjayan GJ. (Thio)urea-mediated benzoxazinone opening: mild approach towards synthesis of o-(substituted amido)benzamides. RSC Adv 2014. [DOI: 10.1039/c3ra45903a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
|
23
|
Abstract
Chiral phosphine, amine or metal catalyzed asymmetric aza-MBH reactions of various imines with different Michael acceptors in recent decades have been discussed and the perspectives offered by these new developments have also been demonstrated.
Collapse
Affiliation(s)
- Fang-Le Hu
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032, P. R. China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032, P. R. China
| |
Collapse
|
24
|
|
25
|
Tian L, Xu GQ, Li YH, Liang YM, Xu PF. An efficient strategy for the synthesis of polysubstituted chromeno[4,3-b]pyrrolidine derivatives. Chem Commun (Camb) 2014; 50:2428-30. [DOI: 10.1039/c3cc49504c] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
26
|
Ma YN, Tian QP, Zhang HY, Zhou AX, Yang SD. P(O)R2 directed Pd(ii)-catalyzed C(sp2)–H acylation. Org Chem Front 2014. [DOI: 10.1039/c4qo00005f] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel method for the Pd(ii)-catalyzed C–H acylation of 2-phosphorylbiphenyl with α-oxocarboxylic acids, aldehydes, alcohols and toluene is reported.
Collapse
Affiliation(s)
- Yan-Na Ma
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000, P. R. China
| | - Qiu-Ping Tian
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000, P. R. China
| | - Hong-Yu Zhang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000, P. R. China
| | - An-Xi Zhou
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000, P. R. China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000, P. R. China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
| |
Collapse
|
27
|
Lu N, Wang H, Wang Y. Theoretical Mechanism Studies on the Enantioselectivity of aza-MBH-type Reaction of Nitroalkene to N-tosylimine Catalyzed by Thiourea-tertiary Amine. B KOREAN CHEM SOC 2013. [DOI: 10.5012/bkcs.2013.34.12.3591] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
28
|
Chiral bifunctional organocatalysts bearing a 1,3-propanediamine unit for the aza-MBH reaction. ACTA ACUST UNITED AC 2013. [DOI: 10.1016/j.tetasy.2013.08.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
29
|
Wei Y, Shi M. Recent advances in organocatalytic asymmetric Morita-Baylis-Hillman/aza-Morita-Baylis-Hillman reactions. Chem Rev 2013; 113:6659-90. [PMID: 23679920 DOI: 10.1021/cr300192h] [Citation(s) in RCA: 572] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Yin Wei
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry , Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, China
| | | |
Collapse
|
30
|
Affiliation(s)
- Adam Noble
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, United Kingdom
| | - James C. Anderson
- Department of Chemistry, University College London, 20 Gordon Street, London, WC1H 0AJ, United Kingdom
| |
Collapse
|
31
|
Yi WB, Zhang Z, Huang X, Tanner A, Cai C, Zhang W. One-pot fluorination and asymmetric Michael addition promoted by recyclable fluorous organocatalysts. RSC Adv 2013. [DOI: 10.1039/c3ra42501k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
32
|
Nitroolefins as a Nucleophilic Component for Highly Stereoselective Aza Henry Reaction under the Catalysis of Chiral Ammonium Betaines. Chemistry 2012; 18:8306-9. [DOI: 10.1002/chem.201201259] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Indexed: 11/07/2022]
|
33
|
Jakab G, Tancon C, Zhang Z, Lippert KM, Schreiner PR. (Thio)urea Organocatalyst Equilibrium Acidities in DMSO. Org Lett 2012; 14:1724-7. [DOI: 10.1021/ol300307c] [Citation(s) in RCA: 199] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gergely Jakab
- Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 58, 35392 Giessen, Germany
| | - Carlo Tancon
- Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 58, 35392 Giessen, Germany
| | - Zhiguo Zhang
- Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 58, 35392 Giessen, Germany
| | - Katharina M. Lippert
- Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 58, 35392 Giessen, Germany
| | - Peter R. Schreiner
- Institute of Organic Chemistry, Justus-Liebig University Giessen, Heinrich-Buff-Ring 58, 35392 Giessen, Germany
| |
Collapse
|
34
|
Guillena G, Ramón DJ, Yus M. Asymmetric organocatalyzed Morita-Baylis-Hillman reactions. CATALYSIS 2012. [DOI: 10.1039/9781849734776-00223] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The use of organocatalyst to promote the Morita-Baylis-Hillman (MBH) and aza-MBH reaction is an asymmetric and atom-economic way to obtain functionalized allylic alcohols or amines respectively, which have recently been well exploited, providing access to chiral densely functionalized products, which are valuable building blocks that can be further applied in the synthesis of complex natural products.
Collapse
Affiliation(s)
| | | | - Miguel Yus
- Departamento de Química Orgánica and Instituto de Síntesis Orgánica (ISO) Universidad de Alicante, Apdo. 99, E-03080 Alicante Spain. , ,
| |
Collapse
|
35
|
Xie H, Zhang Y, Zhang S, Chen X, Wang W. Bifunctional Cinchona Alkaloid Thiourea Catalyzed Highly Efficient, Enantioselective Aza-Henry Reaction of Cyclic Trifluoromethyl Ketimines: Synthesis of Anti-HIV Drug DPC 083. Angew Chem Int Ed Engl 2011; 50:11773-6. [DOI: 10.1002/anie.201105970] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2011] [Indexed: 11/08/2022]
|
36
|
Xie H, Zhang Y, Zhang S, Chen X, Wang W. Bifunctional Cinchona Alkaloid Thiourea Catalyzed Highly Efficient, Enantioselective Aza-Henry Reaction of Cyclic Trifluoromethyl Ketimines: Synthesis of Anti-HIV Drug DPC 083. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201105970] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
37
|
Asymmetric Michael additions of aldehydes to maleimides using a recyclable fluorous thiourea organocatalyst. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2011.05.145] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
38
|
Jia ZX, Luo YC, Xu PF. Highly Enantioselective Synthesis of Polysubstituted Tetrahydroquinolines via Organocatalytic Michael/Aza-Henry Tandem Reactions. Org Lett 2011; 13:832-5. [DOI: 10.1021/ol103069d] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhen-Xin Jia
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yong-Chun Luo
- 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
| |
Collapse
|
39
|
Wang M, Lin L, Shi J, Liu X, Kuang Y, Feng X. Asymmetric crossed-conjugate addition of nitroalkenes to enones by a chiral bifunctional diamine organocatalyst. Chemistry 2011; 17:2365-8. [PMID: 21319233 DOI: 10.1002/chem.201002961] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2010] [Indexed: 11/07/2022]
Affiliation(s)
- Min Wang
- Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, P.R. China
| | | | | | | | | | | |
Collapse
|
40
|
Takizawa S, Inoue N, Sasai H. An enantioselective organocatalyzed aza-MBH domino process: application to the facile synthesis of tetrahydropyridines. Tetrahedron Lett 2011. [DOI: 10.1016/j.tetlet.2010.11.045] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
41
|
|
42
|
Lu N, Meng L, Chen D, Zhang G. Retracted article: Enantioselectivity of aza-MBH-type reaction of nitroalkene to N-tosylimine catalyzed by thiourea-tertiary amine: a theoretical study. RSC Adv 2011. [DOI: 10.1039/c1ra00015b] [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] Open
|
43
|
Takizawa S, Kiriyama K, Ieki K, Sasai H. A bifunctional spiro-type organocatalyst with high enantiocontrol: application to the aza-Morita–Baylis–Hillman reactions. Chem Commun (Camb) 2011; 47:9227-9. [DOI: 10.1039/c1cc12784e] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
44
|
Ling JB, Wang WP, Xu PF. Highly Enantioselective Synthesis of γ-Nitroketones Containing a Terminal Alkene Moiety by means of Organocatalyzed Conjugate Addition between Nitroalkene and Enones. ChemCatChem 2010. [DOI: 10.1002/cctc.201000236] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
45
|
Takizawa S, Inoue N, Hirata S, Sasai H. Enantioselective Synthesis of Isoindolines: An Organocatalyzed Domino Process Based On the aza-Morita-Baylis-Hillman Reaction. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201004547] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
46
|
Takizawa S, Inoue N, Hirata S, Sasai H. Enantioselective Synthesis of Isoindolines: An Organocatalyzed Domino Process Based On the aza-Morita-Baylis-Hillman Reaction. Angew Chem Int Ed Engl 2010; 49:9725-9. [DOI: 10.1002/anie.201004547] [Citation(s) in RCA: 103] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
47
|
Bicyclic Guanidine‐Catalyzed Direct Asymmetric Allylic Addition of
N
‐Aryl Alkylidene‐Succinimides. Chemistry 2010; 16:12534-7. [DOI: 10.1002/chem.201002183] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
48
|
Lang K, Park J, Hong S. Development of Bifunctional Aza-Bis(oxazoline) Copper Catalysts for Enantioselective Henry Reaction. J Org Chem 2010; 75:6424-35. [DOI: 10.1021/jo1009867] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Kai Lang
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| | - Jongwoo Park
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| | - Sukwon Hong
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611-7200
| |
Collapse
|
49
|
|
50
|
Enantioselective, organocatalytic Morita-Baylis-Hillman and Aza-Morita-Baylis-Hillman reactions: stereochemical issues. Molecules 2010; 15:709-34. [PMID: 20335941 PMCID: PMC6263197 DOI: 10.3390/molecules15020709] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 01/25/2010] [Accepted: 01/29/2010] [Indexed: 11/17/2022] Open
Abstract
Conscious of the importance that stereochemical issues may have on the design of efficient organocatalyts for both Morita-Baylis-Hillman and aza-Morita-Baylis-Hillman reaction we have analyzed them in this minireview. The so-called standard reactions involve "naked" enolates which therefore should lead to the syn adducts as the major products, irrespective of the E, Z stereochemistry of the enolate. Accordingly, provided the second step is rate determining step, the design of successful bifunctional or polyfunctional catalysts has to consider the geometrical requirements imposed by the transition structures of the second step of these reactions. On the other hand, MBH and aza-MBH reactions co-catalyzed by (S)-proline and a secondary or tertiary amine (co-catalyst) involve the aldol-type condensation of either a 3-amino-substituted enamine, dienamine, or both, depending on the cases. A Zimmerman-Traxler mechanism defines the stereochemical issues regarding these co-catalyzed condensations which parallel those of the well established (S)-proline catalyzed aldol-like reactions.
Collapse
|