1
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Lu B, Zhang R, Chen C, Jin L, Xu J, Yang H. Research on promoting the asymmetric reaction of phenylacetylene with aldehydes by chloramphenicol base ligands. Chirality 2024; 36:e23631. [PMID: 37974359 DOI: 10.1002/chir.23631] [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: 09/06/2023] [Revised: 10/25/2023] [Accepted: 10/30/2023] [Indexed: 11/19/2023]
Abstract
A series of chiral ligands were synthesized using chloramphenicol base as starting materials. These ligands were applied to the asymmetric catalytic reactions of terminal alkynes with aldehydes to obtain a propargyl alcohol product in high yield (80-94%) with excellent enantioselectivities (82-96%).
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Affiliation(s)
- Baozhao Lu
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, China
| | - Ruifeng Zhang
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, China
| | - Congdi Chen
- Sichuan Provincial Key Laboratory for Structural Optimization and Application of Functional Molecules, Chengdu Normal University, Chengdu, China
| | - Liming Jin
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, Dalian Minzu University, Dalian, China
| | - Jiaqi Xu
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, China
| | - Hongjun Yang
- Key Laboratory of General Chemistry of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu, China
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2
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Lu HY, He ZT. Catalytic asymmetric synthesis of 1,4-enynes. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.108105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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3
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Pellissier H. Recent developments in enantioselective titanium-catalyzed transformations. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214537] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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4
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Flores O, Locquet P, Suffert J. An Alternative Route to Complex Allenes or Cyclooctatrienes via a Suzuki Cyclocarbopalladation Cascade. Chemistry 2021; 28:e202103502. [PMID: 34735041 DOI: 10.1002/chem.202103502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Indexed: 11/09/2022]
Abstract
The 4-exo-dig cyclocarbopalladation of vinyl bromides substituted with a triple or double bond resulted in impressive cascade reactions leading to different compounds under Suzuki cross-coupling conditions upon a slight modification of the starting material. When the starting compound carries a triple bond, a single cascade occurs providing a structure containing an allene, a tetrasubstituted cyclopropane, and a cyclobutene with complete stereoselectivity. When the related starting material possessing a double bond is reacted under the same conditions in the presence of various vinyl boronic esters or acids, an efficient 8π-electrocyclization provides tricyclic systems comprised of a cyclobutene unit, as well as a cyclooctatriene. Five carbons of the latter can be selectively decorated with different substituents depending on the choice of the starting material and the boronic coupling partner.
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Affiliation(s)
- Océane Flores
- Faculty of Pharmacy, University of Strasbourg, 74 Route du Rhin, 67400, Illkirch Graffenstaden, France
| | - Pierre Locquet
- Faculty of Pharmacy, University of Strasbourg, 74 Route du Rhin, 67400, Illkirch Graffenstaden, France
| | - Jean Suffert
- Faculty of Pharmacy, University of Strasbourg, 74 Route du Rhin, 67400, Illkirch Graffenstaden, France
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5
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Lim J, Chintalapudi V, Gudmundsson HG, Tran M, Bernasconi A, Blanco A, Song L, Challis GL, Anderson EA. Synthesis of the C1-C27 Fragment of Stambomycin D Validates Modular Polyketide Synthase-Based Stereochemical Assignments. Org Lett 2021; 23:7439-7444. [PMID: 34494848 PMCID: PMC8491158 DOI: 10.1021/acs.orglett.1c02650] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
![]()
The
stambomycins
are a family of bioactive macrolides isolated
from Streptomyces ambofaciens. Aside from two stereocenters
installed through cytochrome P450 oxidations, their stereochemistry
has been predicted by sequence analysis of the polyketide synthase.
We report a synthesis of the C1–C27 fragment of stambomycin
D, the spectroscopic data of which correlates well with that of the
natural product, further validating predictive sequence analysis as
a powerful tool for stereochemical assignment of complex polyketide
natural products.
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Affiliation(s)
- Jieyan Lim
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Venkaiah Chintalapudi
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Haraldur G Gudmundsson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Minh Tran
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, U.K
| | - Alice Bernasconi
- Sezione Chimica Generale e Organica "A. Marchesini", Università degli Studi di Milano, Via G. Venezian 21, 20133 Milano, Italy
| | - Araceli Blanco
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad de Salamanca, 37008 Salamanca, Spain
| | - Lijiang Song
- Department of Chemistry and Warwick Integrative Synthetic Biology Centre, University of Warwick, Coventry, CV4 7AL, U.K
| | - Gregory L Challis
- Department of Chemistry and Warwick Integrative Synthetic Biology Centre, University of Warwick, Coventry, CV4 7AL, U.K.,Department of Biochemistry and Molecular Biology and ARC Centre of Excellence for Innovations in Peptide and Protein Science, Biomedicine Discovery Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Edward A Anderson
- Chemistry Research Laboratory, University of Oxford, 12 Mansfield Road, Oxford, OX1 3TA, U.K
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6
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Wang W, Qian H, Ma S. Rh‐Catalyzed Reaction of Propargylic Alcohols with Aryl Boronic Acids–Switch from β‐OH Elimination to Protodemetalation. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Weiyi Wang
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University, 220 Handan Lu Shanghai 200433 China
| | - Hui Qian
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University, 220 Handan Lu Shanghai 200433 China
| | - Shengming Ma
- Research Center for Molecular Recognition and Synthesis, Department of ChemistryFudan University, 220 Handan Lu Shanghai 200433 China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic ChemistryChinese Academy of Sciences, 345 Lingling Lu Shanghai 200032 China
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7
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Gallagher AG, Tian H, Torres-Herrera OA, Yin S, Xie A, Lange DM, Wilson JK, Mueller LG, Gau MR, Carroll PJ, Martinez-Solorio D. Access to Highly Functionalized Cyclopentenones via Diastereoselective Pauson-Khand Reaction of Siloxy-Tethered 1,7-Enynes. Org Lett 2019; 21:8646-8651. [PMID: 31613103 DOI: 10.1021/acs.orglett.9b03255] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A diastereoselective Co2(CO)8-mediated Pauson-Khand reaction (PKR) of siloxy-tethered 1,7-enynes for the synthesis of cyclopentaoxasilinones has been developed. This transformation can be performed on a multigram scale and is characterized by a broad substrate scope, functional group compatibility, and high chemo- and diastereoselectivity. Oxidation of the resulting cyclopentaoxasilinones delivers stereoenriched β-alkylated cyclopentenones, which are inaccessible by intermolecular PKRs. This research provides a practical solution to the challenges associated with the classical intermolecular PKR.
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Affiliation(s)
- Austin G Gallagher
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Huan Tian
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Osmar A Torres-Herrera
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Shuai Yin
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Anxin Xie
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Daniel M Lange
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Jerica K Wilson
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Louis G Mueller
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
| | - Michael R Gau
- Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , United States
| | - Patrick J Carroll
- Department of Chemistry , University of Pennsylvania , 231 South 34th Street , Philadelphia , Pennsylvania 19104 , United States
| | - Dionicio Martinez-Solorio
- Department of Chemistry , Drexel University , 32 South 32nd Street , Philadelphia , Pennsylvania 19104 , United States
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8
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Laserna V, Porter MJ, Sheppard TD. Gold-Catalyzed Hydroamination of Propargylic Alcohols: Controlling Divergent Catalytic Reaction Pathways To Access 1,3-Amino Alcohols, 3-Hydroxyketones, or 3-Aminoketones. J Org Chem 2019; 84:11391-11406. [PMID: 31418573 DOI: 10.1021/acs.joc.9b00988] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A versatile approach to the valorization of propargylic alcohols is reported, enabling controlled access to three different products from the same starting materials. First, a general method for the hydroamination of propargylic alcohols with anilines is described using gold catalysis to give 3-hydroxyimines with complete regioselectivity. These 3-hydroxyimines can be reduced to give 1,3-amino alcohols with high syn selectivity. Alternatively, by using a catalytic quantity of aniline, 3-hydroxyketones can be obtained in high yield directly from propargylic alcohols. Further manipulation of the reaction conditions enables the selective formation of 3-aminoketones via a rearrangement/hydroamination pathway. The utility of the new chemistry was exemplified by the one-pot synthesis of a selection of N-arylpyrrolidines and N-arylpiperidines. A mechanism for the hydroamination has been proposed on the basis of experimental studies and density functional theory calculations.
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Affiliation(s)
- Victor Laserna
- Department of Chemistry, Christopher Ingold Laboratories , University College London , 20 Gordon Street , London WC1H 0AJ , U.K
| | - Michael J Porter
- Department of Chemistry, Christopher Ingold Laboratories , University College London , 20 Gordon Street , London WC1H 0AJ , U.K
| | - Tom D Sheppard
- Department of Chemistry, Christopher Ingold Laboratories , University College London , 20 Gordon Street , London WC1H 0AJ , U.K
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9
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Zhuang Z, Li CL, Xiang Y, Wang YH, Yu ZX. An enyne cycloisomerization/[5+1] reaction sequence to synthesize tetrahydroisoquinolinones from enyne-enes and CO. Chem Commun (Camb) 2018; 53:2158-2161. [PMID: 28139785 DOI: 10.1039/c6cc09925d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An enyne cycloisomerization/[5+1] reaction sequence was developed to synthesize tetrahydroisoquinolinones from linear enyne-enes and CO. The first step is a gold(i)-catalyzed enyne cycloisomerization, generating six-membered-ring-fused vinylcyclopropanes. The second step is a rhodium(i)-catalyzed [5+1] reaction of vinylcyclopropanes with CO. This two-step reaction could also be carried out in one-pot without isolating the cycloisomerization product generated from the first step of this sequence.
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Affiliation(s)
- Zhe Zhuang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry, Peking University, Beijing, 100871, China.
| | - Chen-Long Li
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry, Peking University, Beijing, 100871, China.
| | - Yu Xiang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry, Peking University, Beijing, 100871, China.
| | - Yu-Hao Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry, Peking University, Beijing, 100871, China.
| | - Zhi-Xiang Yu
- Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering, College of Chemistry, Peking University, Beijing, 100871, China.
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10
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Xu D, Sun Q, Quan Z, Wang X, Sun W. Cobalt-Catalyzed Dimerization and Homocoupling of Terminal Alkynes. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700587] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Daqian Xu
- College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou 730070 Gansu China
| | - Qiangsheng Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Chinese Academy of Sciences; Lanzhou 730000 China
| | - Zhengjun Quan
- College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou 730070 Gansu China
| | - Xicun Wang
- College of Chemistry and Chemical Engineering; Northwest Normal University; Lanzhou 730070 Gansu China
| | - Wei Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Chinese Academy of Sciences; Lanzhou 730000 China
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11
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Abstract
The Pauson-Khand [2+2+1] cycloaddition of alkynes, alkenes, and carbon monoxide has been a vibrant area of research for more than 40 years. This review highlights recent achievements in the Pauson-Khand reaction, particularly in catalytic and asymmetric variants. Discussion of regioselectivity and advances in substrate scope is also presented.
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Affiliation(s)
- J David Ricker
- University of Nevada, Reno, Department of Chemistry, Reno, NV 89557, USA
| | - Laina M Geary
- University of Nevada, Reno, Department of Chemistry, Reno, NV 89557, USA
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12
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13
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Behera TK, Jarhad DB, Mobin SM, Singh V. Molecular complexity and diversity from aromatics. Intramolecular cycloaddition of cyclohexa-2,4-dienones and sigmatropic shift in excited state: a unified approach towards synthesis of polycyclic frameworks related to crotogoudin, conidiogenol, and crinipellins. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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14
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Das D, Chakraborty TK. An overview of the recent synthetic studies toward penifulvins and other fenestranes. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.07.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Huang WC, Liu W, Wu XD, Ying J, Pu L. Enantioselective Alkyne Addition to Aliphatic, Aromatic, and Vinyl Aldehydes Using Zn, iPrI, H8BINOL, and Ti(OiPr)4. J Org Chem 2015; 80:11480-4. [DOI: 10.1021/acs.joc.5b02185] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wen-Cai Huang
- Department
of Pharmaceutical and Bioengineering, School of Chemical Engineering, Sichuan University, Chengdu, China 610065
- Department
of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Winnie Liu
- Department
of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Xue-Dan Wu
- Department
of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Jun Ying
- Department
of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Lin Pu
- Department
of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
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16
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Yang ZY, Liu TL, Zheng Y, Li S, Ma JA. Asymmetric Enynylation ofN-Sulfonyl Aldimines Catalyzed by Zn-BINOL Complexes. European J Org Chem 2015. [DOI: 10.1002/ejoc.201500400] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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17
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Pellissier H. Enantioselective titanium-promoted 1,2-additions of carbon nucleophiles to carbonyl compounds. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.03.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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18
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Ying J, Brown KB, Sandridge MJ, Hering BA, Sabat M, Pu L. Rh(I)-Catalyzed Chemo- and Stereoselective Domino Cycloaddition of Optically Active Propargyl 2,4-Hexadienyl Ethers. J Org Chem 2015; 80:3195-202. [DOI: 10.1021/acs.joc.5b00150] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jun Ying
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Kenneth B. Brown
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Matthew J. Sandridge
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Brooke A. Hering
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Michal Sabat
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
| | - Lin Pu
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319, United States
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19
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Ying J, Pu L. A Facile Asymmetric Approach to the Multicyclic Core Structure of Mangicol A. Chemistry 2014; 20:16301-7. [DOI: 10.1002/chem.201404142] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Indexed: 11/11/2022]
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20
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García JM, Odriozola JM, Razkin J, Lapuerta I, Odriozola A, Urruzuno I, Vera S, Oiarbide M, Palomo C. Catalytic Enantioselective Quick Route to Aldol-Tethered 1,6- and 1,7-Enynes from ω-Unsaturated Aldehydes. Chemistry 2014; 20:15543-54. [DOI: 10.1002/chem.201404452] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Indexed: 11/07/2022]
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21
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Hicklin RW, López Silva TL, Hergenrother PJ. Synthesis of bridged oxafenestranes from pleuromutilin. Angew Chem Int Ed Engl 2014; 53:9880-3. [PMID: 25045118 DOI: 10.1002/anie.201404765] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Indexed: 11/10/2022]
Abstract
Fenestranes are an intriguing class of highly strained molecules possessing a quaternary carbon with bonds that deviate from the canonical tetrahedral geometry. Herein we report the discovery that the natural product pleuromutilin can be used as a structurally complex starting material for the synthesis of a series of bridged cis,cis,cis,cis-[4.5.5.5]- and cis,cis,cis,cis-[4.5.7.5]oxafenestranes through a carbocation rearrangement cascade. X-ray crystallographic analysis of several cis,cis,cis,cis-[4.5.5.5]oxafenestranes shows a significant planarization of the central tetracoordinate carbon atom and demonstrates the influence of bridgehead substituents and bridging rings on planarity.
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Affiliation(s)
- Robert W Hicklin
- Department of Chemistry, University of Illinois at Urbana-Champaign, 261 RAL, Box 36-5, 600 S. Mathews, Urbana, IL 61801 (USA)
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22
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Raji Reddy C, Kumaraswamy P, Singarapu KK. Sequential Allylic Substitution/Pauson–Khand Reaction: A Strategy to Bicyclic Fused Cyclopentenones from MBH-Acetates of Acetylenic Aldehydes. J Org Chem 2014; 79:7880-8. [PMID: 25105763 DOI: 10.1021/jo500962d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Chada Raji Reddy
- Division of Natural Products Chemistry, ‡Centre for NMR & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
| | - Paridala Kumaraswamy
- Division of Natural Products Chemistry, ‡Centre for NMR & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
| | - Kiran K. Singarapu
- Division of Natural Products Chemistry, ‡Centre for NMR & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, India
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23
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Hicklin RW, López Silva TL, Hergenrother PJ. Synthesis of Bridged Oxafenestranes from Pleuromutilin. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404765] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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24
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Cai H, Nie J, Zheng Y, Ma JA. Lithium Binaphtholate-Catalyzed Enantioselective Enyne Addition to Ketones: Access to Enynylated Tertiary Alcohols. J Org Chem 2014; 79:5484-93. [DOI: 10.1021/jo5005839] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hua Cai
- Department of
Chemistry, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, and Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jing Nie
- Department of
Chemistry, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, and Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Yan Zheng
- Department of
Chemistry, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, and Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jun-An Ma
- Department of
Chemistry, Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, and Collaborative Innovation Centre of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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25
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Pu L. Asymmetric functional organozinc additions to aldehydes catalyzed by 1,1'-bi-2-naphthols (BINOLs). Acc Chem Res 2014; 47:1523-35. [PMID: 24738985 PMCID: PMC4033666 DOI: 10.1021/ar500020k] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Indexed: 12/03/2022]
Abstract
Chiral alcohols are ubiquitous in organic structures. One efficient method to generate chiral alcohols is the catalytic asymmetric addition of a carbon nucleophile to a carbonyl compound since this process produces a C-C bond and a chiral center simultaneously. In comparison with the carbon nucleophiles such as an organolithium or a Grignard reagent, an organozinc reagent possesses the advantages of functional group tolerance and more mild reaction conditions. Catalytic asymmetric reactions of aldehydes with arylzincs, vinylzincs, and alkynylzincs to generate functional chiral alcohols are discussed in this Account. Our laboratory has developed a series of 1,1'-bi-2-naphthol (BINOL)-based chiral catalysts for the asymmetric organozinc addition to aldehydes. It is found that the 3,3'-dianisyl-substituted BINOLs are not only highly enantioselective for the alkylzinc addition to aldehydes, but also highly enantioselective for the diphenylzinc addition to aldehydes. A one-step synthesis has been achieved to incorporate Lewis basic amine groups into the 3,3'-positions of the partially hydrogenated H8BINOL. These H8BINOL-amine compounds have become more generally enantioselective and efficient catalysts for the diphenylzinc addition to aldehydes to produce various types of chiral benzylic alcohols. The application of the H8BINOL-amine catalysts is expanded by using in situ generated diarylzinc reagents from the reaction of aryl iodides with ZnEt2, which still gives high enantioselectivity and good catalytic activity. Such a H8BINOL-amine compound is further found to catalyze the highly enantioselective addition of vinylzincs, in situ generated from the treatment of vinyl iodides with ZnEt2, to aldehydes to give the synthetically very useful chiral allylic alcohols. We have discovered that the unfunctionalized BINOL in combination with ZnEt2 and Ti(O(i)Pr)4 can catalyze the terminal alkyne addition to aldehydes to produce chiral propargylic alcohols of high synthetic utility. The reaction was conducted by first heating an alkyne with ZnEt2 in refluxing toluene to generate an alkynylzinc reagent, which can then add to a broad range of aldehydes at room temperature in the presence of BINOL and Ti(O(i)Pr)4 with high enantioselectivity. It was then found that the addition of a catalytic amount of dicyclohexylamine (Cy2NH) allows the entire process to be conducted at room temperature without the need to generate the alkynylzincs at elevated temperature. This BINOL-ZnEt2-Ti(O(i)Pr)4-Cy2NH catalyst system can be used to catalyze the reaction of structurally diverse alkynes with a broad range of aldehydes at room temperature with high enantioselectivity and good catalytic activity. The work described in this Account demonstrates that BINOL and its derivatives can be used to develop highly enantioselective catalysts for the asymmetric organozinc addition to aldehydes. These processes have allowed the efficient synthesis of many functional chiral alcohols that are useful in organic synthesis.
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Affiliation(s)
- Lin Pu
- Department of Chemistry, University
of Virginia, Charlottesville, Virginia 22904-4319, United States
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Song T, Zheng LS, Ye F, Deng WH, Wei YL, Jiang KZ, Xu LW. Modular Synthesis of Ar-BINMOL-Phos for Catalytic Asymmetric Alkynylation of Aromatic Aldehydes with Unexpected Reversal of Enantioselectivity. Adv Synth Catal 2014. [DOI: 10.1002/adsc.201301128] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Saravanan T, Jana S, Chadha A. Utilization of whole cell mediated deracemization in a chemoenzymatic synthesis of enantiomerically enriched polycyclic chromeno[4,3-b] pyrrolidines. Org Biomol Chem 2014; 12:4682-90. [DOI: 10.1039/c4ob00615a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Boudhar A, Charpenay M, Blond G, Suffert J. Fenestranes in Synthesis: Unique and Highly Inspiring Scaffolds. Angew Chem Int Ed Engl 2013; 52:12786-98. [DOI: 10.1002/anie.201304555] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 06/18/2013] [Indexed: 11/10/2022]
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Boudhar A, Charpenay M, Blond G, Suffert J. Fenestrane in der Synthese: einzigartige und inspirierende Grundgerüste. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304555] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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