1
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Hernández-Ibáñez S, Ortuño JF, Sirvent A, Nájera C, Sansano JM, Yus M, Foubelo F. Synthesis of Vicinal anti-Amino Alcohols from N- tert-Butanesulfinyl Aldimines and Cyclopropanols. J Org Chem 2024; 89:6193-6204. [PMID: 38613513 PMCID: PMC11077494 DOI: 10.1021/acs.joc.4c00198] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 04/08/2024] [Accepted: 04/09/2024] [Indexed: 04/15/2024]
Abstract
The stereoselective synthesis of vicinal amino alcohols derivatives from 1-substituted cyclopropanols and chiral N-tert-butanesulfinyl imines is described. Cyclopropanols are easily prepared from carboxylic esters upon reaction with ethylmagnesium bromide in the presence of titanium tetraisopropoxide and undergo carbon-carbon bond cleavage by means of diethylzinc to produce, upon base deprotonation, enolized zinc homoenolates, which react with chiral sulfinyl imines in a highly regio- and stereoselective manner.
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Affiliation(s)
- Sandra Hernández-Ibáñez
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
- Instituto
de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Juan F. Ortuño
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
- Instituto
de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Ana Sirvent
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
- Instituto
de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Carmen Nájera
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - José Miguel Sansano
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
- Instituto
de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Miguel Yus
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
| | - Francisco Foubelo
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
- Instituto
de Síntesis Orgánica (ISO), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, Apdo. 99, 03080 Alicante, Spain
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2
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Zhang Z, Li J, Xi C. Nickel-Catalyzed Reductive Allylation of Aldehydes with Allylic Alcohols in the Presence of CO 2. Org Lett 2023; 25:8178-8182. [PMID: 37933552 DOI: 10.1021/acs.orglett.3c03528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
CO2-assisted and Ni-catalyzed direct reductive allylation of aldehydes utilizing allylic alcohols as allylic precursor has been reported. Various homoallyl alcohols could be synthesized in excellent yield with enhanced regioselectivity and stereoselectivity for alkyl- and aryl-substituted aldehydes under mild conditions. For different substrates, proper collocation of the catalytic precursor and ligand is crucial. Preliminary mechanistic studies supported the reaction pathway through a sequential allyl hydrocarbonate formation/allylnickelation/coordination insertion process by the Ni(I)/Ni(III) catalytic cycle, which has been proven by cyclic voltammetry analysis.
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Affiliation(s)
- Zeyu Zhang
- MOE Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Jiayuan Li
- MOE Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
| | - Chanjuan Xi
- MOE Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, People's Republic of China
- State Key Laboratory of Elemento Organic Chemistry, Nankai University, Tianjin 300071, People's Republic of China
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3
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Al-Romaizan AN, Gangwar MK, Verma A, Bawaked SM, Saleh TS, Al-Ammari RH, Butcher RJ, Siddiqui IR, Mostafa MMM. Catalytic Acceptorless Dehydrogenation (CAD) of Secondary Benzylic Alcohols into Value-Added Ketones Using Pd(II)-NHC Complexes. Molecules 2023; 28:4992. [PMID: 37446653 PMCID: PMC10343575 DOI: 10.3390/molecules28134992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 06/22/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
For the creation of adaptable carbonyl compounds in organic synthesis, the oxidation of alcohols is a crucial step. As a sustainable alternative to the harmful traditional oxidation processes, transition-metal catalysts have recently attracted a lot of interest in acceptorless dehydrogenation reactions of alcohols. Here, using well-defined, air-stable palladium(II)-NHC catalysts (A-F), we demonstrate an effective method for the catalytic acceptorless dehydrogenation (CAD) reaction of secondary benzylic alcohols to produce the corresponding ketones and molecular hydrogen (H2). Catalytic acceptorless dehydrogenation (CAD) has been successfully used to convert a variety of alcohols, including electron-rich/electron-poor aromatic secondary alcohols, heteroaromatic secondary alcohols, and aliphatic cyclic alcohols, into their corresponding value-added ketones while only releasing molecular hydrogen as a byproduct.
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Affiliation(s)
- Abeer Nasser Al-Romaizan
- Department of Chemistry, Faculty of Science, King Abdul-Aziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.N.A.-R.); (S.M.B.); (R.H.A.-A.)
| | - Manoj Kumar Gangwar
- Department of Chemistry, Faculty of Science, University of Allahabad (AoU), Prayagraj 211002, Uttar Pradesh, India; (M.K.G.); (A.V.); (I.R.S.)
| | - Ankit Verma
- Department of Chemistry, Faculty of Science, University of Allahabad (AoU), Prayagraj 211002, Uttar Pradesh, India; (M.K.G.); (A.V.); (I.R.S.)
| | - Salem M. Bawaked
- Department of Chemistry, Faculty of Science, King Abdul-Aziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.N.A.-R.); (S.M.B.); (R.H.A.-A.)
| | - Tamer S. Saleh
- Department of Chemistry, College of Science, University of Jeddah, P.O. Box 80327, Jeddah 21959, Saudi Arabia
| | - Rahmah H. Al-Ammari
- Department of Chemistry, Faculty of Science, King Abdul-Aziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.N.A.-R.); (S.M.B.); (R.H.A.-A.)
| | - Ray J. Butcher
- Department of Chemistry, Howard University, Washington, DC 20059, USA;
| | - Ibadur Rahman Siddiqui
- Department of Chemistry, Faculty of Science, University of Allahabad (AoU), Prayagraj 211002, Uttar Pradesh, India; (M.K.G.); (A.V.); (I.R.S.)
| | - Mohamed Mokhtar M. Mostafa
- Department of Chemistry, Faculty of Science, King Abdul-Aziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia; (A.N.A.-R.); (S.M.B.); (R.H.A.-A.)
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4
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Metal-free oxidative radical arylation of styrene with anilines to access 2-arylacetophenones and selective oxidation of amine. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.134995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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5
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Xie H, Breit B. Organophotoredox/Ni-Cocatalyzed Allylation of Allenes: Regio- and Diastereoselective Access to Homoallylic Alcohols. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00464] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hui Xie
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104 Freiburg im Breisgau, Germany
| | - Bernhard Breit
- Institut für Organische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstraße 21, 79104 Freiburg im Breisgau, Germany
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6
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Sekiguchi Y, Yoshikai N. Zinc-Mediated Hydroxyallylation of Aldehydes with Cyclopropanols: Direct Access to Vicinal anti- sec, tert-Diols via Enolized Homoenolates. Org Lett 2022; 24:960-965. [PMID: 35030003 DOI: 10.1021/acs.orglett.1c04331] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Direct and diastereoselective synthesis of vicinal anti-sec,tert-diols has been achieved by zinc-mediated α-hydroxyallylation of aldehydes with cyclopropanols. The reaction features the action of the zinc-enolized homoenolate as a γ-oxyallyl nucleophile toward the carbonyl electrophile. The diastereoselectivity of the present reaction is ascribed to the strong preference for a chelated (Z)-configuration of the enolized homoenolate as well as the bicyclic chairlike transition state it forms with the aldehyde, where the aldehyde substituent prefers to occupy the pseudoaxial position.
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Affiliation(s)
- Yoshiya Sekiguchi
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore
| | - Naohiko Yoshikai
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371, Singapore.,Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
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7
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Truong S, Mootoo DR. C-Glycosylcrotylboronates for the Synthesis of Glycomimetics. Org Lett 2021; 24:191-195. [PMID: 34958591 DOI: 10.1021/acs.orglett.1c03845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The stereoselective synthesis of E- and Z- isomers of a C- mannosyl crotylpinacolboronate via Ni-promoted reactions on an allylic acetate and a diene precursor, respectively, is described. The E- and Z- isomers reacted with 1,2-O-isopropylidene glyceraldehyde in the presence or absence of (R)- and (S)- TRIP catalysts, to give predominantly 3,4-anti and 3,4-syn crotylation products, respectively, with moderate to high facial selectivity. These products were transformed to biologically relevant C-manno-disaccharides.
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Affiliation(s)
- Steven Truong
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States.,The Graduate Center, CUNY, 365 Fifth Avenue, New York, New York 10016, United States
| | - David R Mootoo
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, New York 10065, United States.,The Graduate Center, CUNY, 365 Fifth Avenue, New York, New York 10016, United States
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8
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Wang TC, Wang PS, Chen DF, Gong LZ. Access to chiral homoallylic vicinal diols from carbonyl allylation of aldehydes with allyl ethers via palladium-catalyzed allylic C-H borylation. Sci China Chem 2021. [DOI: 10.1007/s11426-021-1134-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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9
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Li Y, Feng X, Jia X, Jin H, Chen F, Zhao Y, Zhang J, Wang J, Guo B, Tang L, Yang Y. Regiodivergent Functionalization of Isoquinoline‐1,3(2
H
,4
H
)‐dione Derivatives via Aerobic Umpolung. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ying‐Xian Li
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D Guizhou Medical University 550014 Guiyang P. R. China
| | - Xiao‐Bing Feng
- Xiao-Bing Feng Department of orthopaedics People's Hospital of Luzhou 646000 Luzhou P. R. China
| | - Xue‐Min Jia
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D Guizhou Medical University 550014 Guiyang P. R. China
| | - Huang Jin
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D Guizhou Medical University 550014 Guiyang P. R. China
| | - Fei Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D Guizhou Medical University 550014 Guiyang P. R. China
| | - Yong‐Long Zhao
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D Guizhou Medical University 550014 Guiyang P. R. China
| | - Ji‐Quan Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D Guizhou Medical University 550014 Guiyang P. R. China
| | - Jian‐Ta Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D Guizhou Medical University 550014 Guiyang P. R. China
| | - Bing Guo
- Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases Guizhou Medical University 550004 Guiyang P. R. China
| | - Lei Tang
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D Guizhou Medical University 550014 Guiyang P. R. China
| | - Yuan‐Yong Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants School of Pharmacy Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D Guizhou Medical University 550014 Guiyang P. R. China
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10
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Hao Z, Liu K, Feng Q, Dong Q, Ma D, Han Z, Lu G, Lin J. Ruthenium(
II
) Complexes Bearing Schiff Base Ligands for Efficient Acceptorless Dehydrogenation of Secondary Alcohols
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000363] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Zhiqiang Hao
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
| | - Kang Liu
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
| | - Qi Feng
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
| | - Qing Dong
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
| | - Dongzhu Ma
- Department of Environment and Chemical Engineering, Hebei College of Industry and Technology Shijiazhuang Hebei 050091 China
| | - Zhangang Han
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
| | - Guo‐Liang Lu
- Auckland Cancer Society Research Centre, Faculty of Medical and Health Sciences, The University of Auckland Private Bag 92019 Auckland 1142 New Zealand
| | - Jin Lin
- Hebei Key Laboratory of Organic Functional Molecules, College of Chemistry and Material Science, Hebei Normal University Shijiazhuang Hebei 050024 China
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11
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Schäfers F, Quach L, Schwarz JL, Saladrigas M, Daniliuc CG, Glorius F. Direct Access to Monoprotected Homoallylic 1,2-Diols via Dual Chromium/Photoredox Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03697] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Felix Schäfers
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Linda Quach
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - J. Luca Schwarz
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Mar Saladrigas
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Constantin G. Daniliuc
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Frank Glorius
- Organisch-Chemisches Institut, Westfälische Wilhelms-Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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12
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Lu H, Yu TY, Xu PF, Wei H. Selective Decarbonylation via Transition-Metal-Catalyzed Carbon–Carbon Bond Cleavage. Chem Rev 2020; 121:365-411. [DOI: 10.1021/acs.chemrev.0c00153] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Hong Lu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
| | - Tian-Yang Yu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
| | - Peng-Fei Xu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Hao Wei
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, China
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13
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Hong B, Aganda KCC, Lee A. Oxidative C-S Bond Cleavage of Benzyl Thiols Enabled by Visible-Light-Mediated Silver(II) Complexes. Org Lett 2020; 22:4395-4399. [PMID: 32459496 DOI: 10.1021/acs.orglett.0c01399] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The oxidative cleavage reaction of the C-S bond using singlet oxygen is challenging because of its uncontrollable nature. We have developed a novel method for the singlet-oxygen-mediated selective C-S bond cleavage reaction using silver(II)-ligand complexes. Visible-light-induced silver catalysis enables the controlled oxidative cleavage of benzyl thiols to afford carbonyl compounds, such as aldehydes or ketones, which are important synthetic components.
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14
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Chen J, Gao S, Gorden JD, Chen M. Stereoselective Syntheses of γ-Boryl Substituted syn-β-Alkoxy- and syn-β-Amino-homoallylic Alcohols via a Regio- and Stereoselective Allene Diboration and Aldehyde Allylboration Reaction Sequence. Org Lett 2019; 21:4638-4641. [DOI: 10.1021/acs.orglett.9b01535] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jichao Chen
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Shang Gao
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - John D. Gorden
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Ming Chen
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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15
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Gao S, Chen M. Enantioselective syn- and anti-Alkoxyallylation of Aldehydes via Brønsted Acid Catalysis. Org Lett 2018; 20:6174-6177. [DOI: 10.1021/acs.orglett.8b02653] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Shang Gao
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
| | - Ming Chen
- Department of Chemistry and Biochemistry, Auburn University, Auburn, Alabama 36849, United States
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16
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Abstract
A strategy for the synthesis of C-pseudodisaccharides that centers on the reaction of a C-linked crotyltin and a substituted pent-4-enal and a ring-closing metathesis-alkene dihydroxylation sequence on the derived crotylation products is illustrated in the preparation of analogues of the insulin modulatory inositol galactosamine-β-(1 → 4)-3-O-methyl-d- chiro-inositol (β-INS-2). The modularity of this approach and versatility of the pivotal crotylation products make this a potentially general methodology for diverse libraries of C-glycoinositols.
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Affiliation(s)
- Ahmad S Altiti
- Department of Chemistry , Hunter College , 695 Park Avenue , New York , New York 10065 , United States.,The Graduate Center , CUNY , 365 Fifth Avenue , New York , New York 10016 , United States
| | - David R Mootoo
- Department of Chemistry , Hunter College , 695 Park Avenue , New York , New York 10065 , United States.,The Graduate Center , CUNY , 365 Fifth Avenue , New York , New York 10016 , United States
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17
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Draskovits M, Stanetty C, Baxendale IR, Mihovilovic MD. Indium- and Zinc-Mediated Acyloxyallylation of Protected and Unprotected Aldotetroses-Revealing a Pronounced Diastereodivergence and a Fundamental Difference in the Performance of the Mediating Metal. J Org Chem 2018; 83:2647-2659. [PMID: 29369620 PMCID: PMC5838623 DOI: 10.1021/acs.joc.7b03063] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
![]()
The
acyloxyallylation of unprotected aldoses was first demonstrated
more than a decade ago as a potentially elegant two-carbon homologation
of reducing sugars (upon ozonolysis); however, its application in
real case syntheses remained scarce. Following up on such a successful
showcase and to answer several pending questions about this attractive
transformation, we engaged in an in depth methodological reinvestigation.
The epimeric tetroses l-erythrose and d-threose
in unprotected and protected form were successfully applied to the
indium and also zinc-mediated acyloxyallylation, with the latter being
a first for an unprotected sugar. The investigation largely benefited
from the choice of these more exotic starting materials as it allowed
unambiguous identification/quantification of the hexose-products which
are available as authentic reference materials. The observed diastereoselectivities
indicate a strong substrate control (stereochemistry at O2), and the influence of the reagent’s structure on the selectivity
was investigated in great detail. A strong facial diastereodivergence
between related protected and unprotected structures was demonstrated
and an unexpected, pronounced principle difference in performance
between indium and zinc was revealed.
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Affiliation(s)
- Markus Draskovits
- Institute of Applied Synthetic Chemistry, TU Wien , Getreidemarkt 9, 1060 Vienna Austria
| | - Christian Stanetty
- Institute of Applied Synthetic Chemistry, TU Wien , Getreidemarkt 9, 1060 Vienna Austria
| | - Ian R Baxendale
- Department of Chemistry, Durham University , South Road, Durham, DH1 3LE, United Kingdom
| | - Marko D Mihovilovic
- Institute of Applied Synthetic Chemistry, TU Wien , Getreidemarkt 9, 1060 Vienna Austria
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18
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Altiti AS, Bachan S, Mootoo DR. The Crotylation Way to Glycosphingolipids: Synthesis of Analogues of KRN7000. Org Lett 2016; 18:4654-7. [PMID: 27560147 DOI: 10.1021/acs.orglett.6b02284] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A synthesis of glycosphingolipids that centers on the reaction of O- and C-glycosyl crotylstannanes and relatively simple lipid aldehydes is described. The modularity of this strategy and versatility of the crotylation products make this an attractive approach to diverse, highly substituted libraries. The methodology is applied to analogues of the potent imunostimulatory glycolipid KRN7000, including O-, methylene-, and fluoromethine-linked isosteres with diastereomeric ceramide segments and 2-amido substitutes.
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Affiliation(s)
- Ahmad S Altiti
- Hunter College, The City University of New York (CUNY) , 695 Park Avenue, New York, New York 10021, United States.,The Graduate Center, CUNY , 365 Fifth Avenue, New York, New York 10016, United States
| | - Stewart Bachan
- Hunter College, The City University of New York (CUNY) , 695 Park Avenue, New York, New York 10021, United States.,The Graduate Center, CUNY , 365 Fifth Avenue, New York, New York 10016, United States
| | - David R Mootoo
- Hunter College, The City University of New York (CUNY) , 695 Park Avenue, New York, New York 10021, United States.,The Graduate Center, CUNY , 365 Fifth Avenue, New York, New York 10016, United States
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19
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Pratihar S. Triggering the approach of an arene or heteroarene towards an aldehyde via Lewis acid-aldehyde communication. Org Biomol Chem 2016; 14:2854-65. [PMID: 26864596 DOI: 10.1039/c5ob02284c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The present work reports a combined experimental/computational study of the Lewis acid promoted hydroxyalkylation reaction involving aldehyde and arene/heteroarene and reveals a mechanism in which the rate determining aldehyde to alcohol formation via a four-member cyclic transition state (TS) involves a transfer of hydrogen from arene/heteroarene C-H to aldehyde oxygen with the breaking of the C-H bond and formation of C-C and O-H bonds. The effect of different Sn(iv) derivatives on the hydroxyalkylation reaction from different in situ NMR and computational studies reveals that although the exergonic formation of the intermediate and its gained electrophilicity at the carbonyl carbon drive the reaction in SnCl4 compared to other Sn(iv) derivatives, the overall reaction is low yielding because of its stable intermediate. With respect to different aldehydes, LA promoted hydroxylation was found to be more feasible for an electron withdrawing aldehyde compared to electron rich aldehyde because of lower stability, enhanced electrophilicity gained at the aldehyde center, and a lower activation barrier between its intermediate and TS in the former as compared to the latter. The relative stability of the LA-aldehyde adduct decreases in the order SnCl4 > AlCl3 > InCl3 > BF3 > ZnCl2 > TiCl4 > SiCl4, while the activation barrier (ΔG(#)) between intermediate and transition states increases in the order AlCl3 < SnCl4 < InCl3 < BF3 < TiCl4 < ZnCl2 < SiCl4. On the other hand, the activation barriers in the case of different arenes/heteroarenes are in the order of indole < furan < anisole < thiophene < toluene < benzene < chlorobenzene < cyanobenzene, which suggests a facile reaction in the case of indole and the most difficult reaction in the case of cyanobenzene. The ease of formation of the corresponding diaryl methyl carbocation from the alcohol-LA intermediate is responsible for the determination of the undesired product and is found to be more viable in the case of strong LAs like AlCl3, InCl3 and SnCl4 because they have negative free energy of formation (ΔG) for alcohol to the corresponding diaryl methyl carbocation.
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Affiliation(s)
- Sanjay Pratihar
- Department of Chemical Sciences, Tezpur University, Napaam, Assam-784028, India.
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20
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Abstract
The waste zinc material in Zn(0) promoted Grignard–Barbier type allylation of aldehydes has been successfully utilized as a reusable material for the adsorption of various dyes and also converted into the corresponding hexagonal wurtzite phase of ZnO.
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Affiliation(s)
| | | | - Kasturi Sarmah
- Department of Chemical Sciences
- Tezpur University
- Napaam
- India
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21
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Dong HQ, Xu MH, Feng CG, Sun XW, Lin GQ. Recent applications of chiral N-tert-butanesulfinyl imines, chiral diene ligands and chiral sulfur–olefin ligands in asymmetric synthesis. Org Chem Front 2015. [DOI: 10.1039/c4qo00245h] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The highly efficient asymmetric reactions of chiral sulfinyl auxiliary, diene ligands and sulfur–olefin ligands are presented.
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Affiliation(s)
- Han-Qing Dong
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Ming-Hua Xu
- State Key Laboratory of Drug Research
- Shanghai Institute of Materia Medica
- Chinese Academy of Sciences
- Shanghai 201203
- China
| | - Chen-Guo Feng
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
| | - Xing-Wen Sun
- Department of Chemistry
- Fudan University
- Shanghai 200433
- China
| | - Guo-Qiang Lin
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
- China
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22
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Yamamoto E, Takenouchi Y, Ozaki T, Miya T, Ito H. Copper(I)-Catalyzed Enantioselective Synthesis of α-Chiral Linear or Carbocyclic (E)-(γ-Alkoxyallyl)boronates. J Am Chem Soc 2014; 136:16515-21. [DOI: 10.1021/ja506284w] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Eiji Yamamoto
- Division of Chemical Process Engineering & Frontier Chemistry Center, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Yuta Takenouchi
- Division of Chemical Process Engineering & Frontier Chemistry Center, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Taichi Ozaki
- Division of Chemical Process Engineering & Frontier Chemistry Center, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Takanori Miya
- Division of Chemical Process Engineering & Frontier Chemistry Center, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
| | - Hajime Ito
- Division of Chemical Process Engineering & Frontier Chemistry Center, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
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23
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Hemelaere R, Carreaux F, Carboni B. Cross-Metathesis/Isomerization/Allylboration Sequence for a Diastereoselective Synthesis ofAnti-Homoallylic Alcohols from Allylbenzene Derivatives and Aldehydes. Chemistry 2014; 20:14518-23. [DOI: 10.1002/chem.201403954] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Indexed: 11/10/2022]
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24
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Gade NR, Iqbal J. A Common Synthetic Protocol for the Cyclic and Acyclic Core of Migrastatin, Isomigrastatin, and Dorrigocin via a Chiral β-Hydroxy-γ-butyrolactone Intermediate. European J Org Chem 2014. [DOI: 10.1002/ejoc.201402830] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Song H, Kang B, Hong SH. Fe-Catalyzed Acceptorless Dehydrogenation of Secondary Benzylic Alcohols. ACS Catal 2014. [DOI: 10.1021/cs5007316] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hansoo Song
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Gwanak-gu, Seoul 151-742, Republic of Korea
- Department of Chemistry,
College of Natural Sciences, Seoul National University, 599 Gwanak-ro, Seoul 151-747, Republic of Korea
- Korea Carbon Capture Sequestration R&D Center (KCRC), Daejeon 305-303, Republic of Korea
| | - Byungjoon Kang
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Gwanak-gu, Seoul 151-742, Republic of Korea
- Department of Chemistry,
College of Natural Sciences, Seoul National University, 599 Gwanak-ro, Seoul 151-747, Republic of Korea
- Korea Carbon Capture Sequestration R&D Center (KCRC), Daejeon 305-303, Republic of Korea
| | - Soon Hyeok Hong
- Center for Nanoparticle Research, Institute for Basic Science (IBS), Gwanak-gu, Seoul 151-742, Republic of Korea
- Department of Chemistry,
College of Natural Sciences, Seoul National University, 599 Gwanak-ro, Seoul 151-747, Republic of Korea
- Korea Carbon Capture Sequestration R&D Center (KCRC), Daejeon 305-303, Republic of Korea
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26
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Expanding the scope of the indium-promoted allylation reaction: 4-(bromomethyl)-1,3-dioxol-2-one as a synthetic equivalent of a 3-arylhydroxyacetone enolate. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.09.115] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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27
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Chen M, Roush WR. Enantioselective synthesis of (Z)- and (E)-2-methyl-1,5-anti-pentenediols via an allene hydroboration-double-allylboration reaction sequence. J Am Chem Soc 2013; 135:9512-7. [PMID: 23758559 PMCID: PMC3733567 DOI: 10.1021/ja4033633] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Kinetically controlled hydroboration of allenylboronate 5 followed by double allylboration with the resulting allylborane (Z)-7 gave (Z)-2-methyl-1,5-anti-pentenediols 6 in good yield and high enantioselectivity in the presence of 10% BF3·OEt2 as the catalyst in the second allylboration step. Under thermodynamically controlled isomerization conditions, (Z)-7 can readily isomerize to (E)-7. Double allylboration of representative aldehydes with allylborane (E)-7 gave (E)-2-methyl-1,5-anti-pentenediols 4 in good yield and high enantioselectivity without requiring use of the BF3·OEt2 catalyst. Thus, 2-methyl-1,5-anti-pentenediols with either olefin geometry can be synthesized from the same allenylboronate precursor 5. Furthermore, 1,5-pentenediols 4 and 6 can be easily converted to 1,3,5-triols with excellent diastereoselectivity in one step.
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Affiliation(s)
- Ming Chen
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458
| | - William R. Roush
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458
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28
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Zou Y, Ding C, Zhou L, Li Z, Wang Q, Schoenebeck F, Goeke A. Tandem Cross-Dimerisation/Oxonia-Cope Reaction of Carbonyl Compounds to Homoallylic Esters and Lactones. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201200425] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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29
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Zou Y, Ding C, Zhou L, Li Z, Wang Q, Schoenebeck F, Goeke A. Tandem cross-dimerisation/oxonia-cope reaction of carbonyl compounds to homoallylic esters and lactones. Angew Chem Int Ed Engl 2012; 51:5647-51. [PMID: 22539267 DOI: 10.1002/anie.201200425] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2012] [Indexed: 11/10/2022]
Affiliation(s)
- Yue Zou
- Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, PR China
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30
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Linclau B, Cini E, Oakes CS, Josse S, Light M, Ironmonger V. Stereoarrays with an all-carbon quaternary center: diastereoselective desymmetrization of prochiral malonaldehydes. Angew Chem Int Ed Engl 2012; 51:1232-5. [PMID: 22213150 DOI: 10.1002/anie.201107370] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Bruno Linclau
- School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, UK.
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31
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Linclau B, Cini E, Oakes CS, Josse S, Light M, Ironmonger V. Stereoarrays with an All-Carbon Quaternary Center: Diastereoselective Desymmetrization of Prochiral Malonaldehydes. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201107370] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Pratihar S, Roy S. Reactivity and Selectivity of Organotin Reagents in Allylation and Arylation: Nucleophilicity Parameter as a Guide. Organometallics 2011. [DOI: 10.1021/om101030c] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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33
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Mejuch T, Botoshansky M, Marek I. Combined Carbometalation–Zinc Homologation–Allylation Reactions as a New Approach for Alkoxyallylation of Aldehydes. Org Lett 2011; 13:3604-7. [DOI: 10.1021/ol201221d] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tom Mejuch
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel, and Laboratory for X-ray Analysis, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
| | - Mark Botoshansky
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel, and Laboratory for X-ray Analysis, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
| | - Ilan Marek
- The Mallat Family Laboratory of Organic Chemistry, Schulich Faculty of Chemistry and the Lise Meitner-Minerva Center for Computational Quantum Chemistry, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel, and Laboratory for X-ray Analysis, Technion-Israel Institute of Technology, Technion City, Haifa 32000, Israel
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34
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Chen M, Roush WR. Enantioselective syntheses of syn- and anti-β-hydroxyallylsilanes via allene hydroboration-aldehyde allylboration reactions. Org Lett 2011; 13:1992-5. [PMID: 21410173 DOI: 10.1021/ol200392u] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The kinetic hydroboration of allenylsilane 5 with ((d)Ipc)(2)BH at -40 °C provides allylborane 9Z with ≥12:1 selectivity. When the hydroboration is performed at temperatures above -40 °C, 9Z isomerizes to the thermodynamically more stable allylborane 9E with >20:1 selectivity. Subsequent treatment of 9Z or 9E with aldehydes at -78 °C provides syn- or anti-β-hydroxyallylsilanes, 7 or 8, respectively.
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Affiliation(s)
- Ming Chen
- Department of Chemistry, Scripps Florida, Jupiter, Florida 33458, USA
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35
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Angulo-Pachón CA, Díaz-Oltra S, Murga J, Carda M, Marco JA. Stereoselective Synthesis and Structural Correction of the Naturally Occurring Lactone Stagonolide G. Org Lett 2010; 12:5752-5. [DOI: 10.1021/ol102599e] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- César A. Angulo-Pachón
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Castellón, E-12080 Castellón, Spain, and Departamento de Química Orgánica, Universitat de Valencia, E-46100 Burjassot, Valencia, Spain
| | - Santiago Díaz-Oltra
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Castellón, E-12080 Castellón, Spain, and Departamento de Química Orgánica, Universitat de Valencia, E-46100 Burjassot, Valencia, Spain
| | - Juan Murga
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Castellón, E-12080 Castellón, Spain, and Departamento de Química Orgánica, Universitat de Valencia, E-46100 Burjassot, Valencia, Spain
| | - Miguel Carda
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Castellón, E-12080 Castellón, Spain, and Departamento de Química Orgánica, Universitat de Valencia, E-46100 Burjassot, Valencia, Spain
| | - J. Alberto Marco
- Departamento de Química Inorgánica y Orgánica, Universitat Jaume I, Castellón, E-12080 Castellón, Spain, and Departamento de Química Orgánica, Universitat de Valencia, E-46100 Burjassot, Valencia, Spain
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36
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Han SB, Han H, Krische MJ. Diastereo- and enantioselective anti-alkoxyallylation employing allylic gem-dicarboxylates as allyl donors via iridium-catalyzed transfer hydrogenation. J Am Chem Soc 2010; 132:1760-1. [PMID: 20099821 DOI: 10.1021/ja9097675] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Enantioselective transfer hydrogenation of gem-dibenzoate 1e in the presence of aromatic, alpha,beta-unsaturated, or aliphatic aldehydes 2a-i mediated by isopropyl alcohol and employing a cyclometalated iridium C,O-benzoate derived from allyl acetate, 4-cyano-3-nitrobenzoic acid, and (R)-SEGPHOS delivers products of alkoxyallylation 3a-i, 4a, 4e, 4f, and 4i in good isolated yields (62-82%) with good to excellent diastereoselectivities (7:1 to 18:1 dr) and exceptional enantioselectivities (90-99% ee). This protocol provides an alternative to the use of premetalated nucleophiles in carbonyl alkoxyallylation.
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Affiliation(s)
- Soo Bong Han
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, USA
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37
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Lumbroso A, Kwiatkowski P, Blonska A, Le Grognec E, Beaudet I, Jurczak J, Jarosz S, Quintard JP. Addition of γ-silyloxyallyltins on ethyl glyoxylate: evaluation of the influence of the experimental conditions on the stereochemical course of the reaction. Tetrahedron 2010. [DOI: 10.1016/j.tet.2009.12.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Liu M, Sun XW, Xu MH, Lin GQ. Highly Efficient Asymmetric Synthesis of Vinylic Amino Alcohols by Zn-Promoted Benzoyloxyallylation of ChiralN-tert-Butanesulfinyl Imines: Facile and Rapid Access to (−)-Cytoxazone. Chemistry 2009; 15:10217-24. [DOI: 10.1002/chem.200900801] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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39
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Muñoz-Hernández L, Soderquist JA. Asymmetric γ-Methoxyallylation with the Robust 10-TMS-9-Borabicyclo[3.3.2]decanes. Org Lett 2009; 11:2571-4. [DOI: 10.1021/ol900865y] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - John A. Soderquist
- Department of Chemistry, University of Puerto Rico, Rio Piedras, Puerto Rico 00931-3346
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40
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Monrad RN, Fanefjord M, Hansen FG, Jensen NME, Madsen R. Synthesis of Gabosine A and N from Ribose by the Use of Ring-Closing Metathesis. European J Org Chem 2009. [DOI: 10.1002/ejoc.200800983] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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41
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Alcaide B, Almendros P, Aragoncillo C, Cabrero G, Callejo R, Pilar Ruiz M. Indium-Promoted Acyloxyallylation Reaction of Azetidine-2,3-diones in Aqueous Media: A New Route to Densely Functionalized 3-Substituted 3-Hydroxy-β-lactams. European J Org Chem 2008. [DOI: 10.1002/ejoc.200800521] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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42
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Davoust M, Cantagrel F, Metzner P, Brière JF. A stereodivergent synthesis of β-hydroxy-α-methylene lactones via vinyl epoxides. Org Biomol Chem 2008; 6:1981-93. [DOI: 10.1039/b802310g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Bottoni A, Lombardo M, Miscione GP, Pujol Algué JB, Trombini C. 3-Bromozinc Propenyl Esters: An Experimental and Theoretical Study of the Unique Stereocrossover Observed in Their Addition to Aromatic and Aliphatic Aldehydes. J Org Chem 2007; 73:418-26. [DOI: 10.1021/jo701661z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- A. Bottoni
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, I-40126 Bologna, Italy
| | - M. Lombardo
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, I-40126 Bologna, Italy
| | - G. P. Miscione
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, I-40126 Bologna, Italy
| | - J. B. Pujol Algué
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, I-40126 Bologna, Italy
| | - C. Trombini
- Dipartimento di Chimica “G. Ciamician”, Università di Bologna, via Selmi 2, I-40126 Bologna, Italy
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