1
|
Jiang N, Liu PZ, Pan ZZ, Wang SQ, Peng Q, Yin L. Asymmetric Synthesis of Trisubstituted Vicinal Diols through Copper(I)-Catalyzed Diastereoselective and Enantioselective Allylation of Ketones with Siloxypropadienes. Angew Chem Int Ed Engl 2024; 63:e202402195. [PMID: 38410020 DOI: 10.1002/anie.202402195] [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: 01/31/2024] [Revised: 02/25/2024] [Accepted: 02/26/2024] [Indexed: 02/28/2024]
Abstract
Chiral trisubstituted vicinal diols are a type of important organic compounds, serving as both common structure units in bioactive natural products and chiral auxiliaries in asymmetric synthesis. Herein, by using siloxypropadienes as the precursors of allyl copper(I) species, a copper(I)-catalyzed diastereoselective and enantioselective reductive allylation of ketones was achieved, providing both syn-diols and anti-diols in good to excellent enantioselectivity. DFT calculations show that cis-γ-siloxy-allyl copper species are generated favorably with either 1-TBSO-propadiene or 1-TIPSO-propadiene. Moreover, the steric difference of TBS group and TIPS group distinguishes the face selectivity of acetophenone, leading to syn-selectivity for 1-TBSO-propadiene and anti-selectivity for 1-TIPSO-propadiene. Easy transformations of the products were performed, demonstrating the synthetic utility of the present method. Moreover, one chiral diol prepared in the above transformations was used as a suitable organocatalyst for the catalytic asymmetric reductive self-coupling of aldimines generated in situ with B2(neo)2.
Collapse
Affiliation(s)
- Nan Jiang
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Pei-Zhi Liu
- State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Biosensing and Molecular Recognition College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
| | - Zhi-Zhou Pan
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Si-Qing Wang
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| | - Qian Peng
- State Key Laboratory of Elemento-Organic Chemistry and Tianjin Key Laboratory of Biosensing and Molecular Recognition College of Chemistry, Nankai University, 94 Weijin Road, Tianjin, 300071, China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin, 300192, China
| | - Liang Yin
- Key Laboratory of Fluorine and Nitrogen Chemistry and Advanced Materials Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China
| |
Collapse
|
2
|
Diallo AG, Paris D, Faye D, Gaillard S, Lautens M, Renaud JL. Dual Ni/Organophotoredox Catalyzed Allylative Ring Opening Reaction of Oxabenzonorbornadienes and Analogs. ACS Catal 2022. [DOI: 10.1021/acscatal.2c00512] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Abdoul G. Diallo
- Normandie University, LCMT, ENSICAEN, UNICAEN, CNRS, 14000 Caen, France
| | - Déborah Paris
- Normandie University, LCMT, ENSICAEN, UNICAEN, CNRS, 14000 Caen, France
| | - Djiby Faye
- Normandie University, LCMT, ENSICAEN, UNICAEN, CNRS, 14000 Caen, France
- University of Cheikh Anta Diop de Dakar, Department of Chemistry, Faculty of Sciences, 10700 Dakar, Sénégal
| | - Sylvain Gaillard
- Normandie University, LCMT, ENSICAEN, UNICAEN, CNRS, 14000 Caen, France
| | - Mark Lautens
- Davenport Research Laboratories, Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Jean-Luc Renaud
- Normandie University, LCMT, ENSICAEN, UNICAEN, CNRS, 14000 Caen, France
| |
Collapse
|
3
|
Xiang M, Pfaffinger DE, Krische MJ. Allenes and Dienes as Chiral Allylmetal Pronucleophiles in Catalytic Enantioselective C=X Addition: Historical Perspective and State-of-The-Art Survey. Chemistry 2021; 27:13107-13116. [PMID: 34185926 PMCID: PMC8446312 DOI: 10.1002/chem.202101890] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Indexed: 12/18/2022]
Abstract
The use of allenes and 1,3-dienes as chiral allylmetal pronucleophiles in intermolecular catalytic enantioselective reductive additions to aldehydes, ketones, imines, carbon dioxide and other C=X electrophiles is exhaustively catalogued together with redox-neutral hydrogen auto-transfer processes. Coverage is limited to processes that result in both C-H and C-C bond formation. The use of alkynes as latent allylmetal pronucleophiles and multicomponent C=X allylations involving allenes and dienes is not covered. As illustrated in this review, the ability of allenes and 1,3-dienes to serve as tractable non-metallic pronucleophiles has evoked many useful transformations that have no counterpart in traditional allylmetal chemistry.
Collapse
Affiliation(s)
- Ming Xiang
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX 78712-1167 (USA)
| | - Dana E. Pfaffinger
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX 78712-1167 (USA)
| | - Michael J. Krische
- University of Texas at Austin, Department of Chemistry, 105 E 24th St. (A5300), Austin, TX 78712-1167 (USA)
| |
Collapse
|
4
|
Santana CG, Krische MJ. From Hydrogenation to Transfer Hydrogenation to Hydrogen Auto-Transfer in Enantioselective Metal-Catalyzed Carbonyl Reductive Coupling: Past, Present, and Future. ACS Catal 2021; 11:5572-5585. [PMID: 34306816 PMCID: PMC8302072 DOI: 10.1021/acscatal.1c01109] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Atom-efficient processes that occur via addition, redistribution or removal of hydrogen underlie many large volume industrial processes and pervade all segments of chemical industry. Although carbonyl addition is one of the oldest and most broadly utilized methods for C-C bond formation, the delivery of non-stabilized carbanions to carbonyl compounds has relied on premetalated reagents or metallic/organometallic reductants, which pose issues of safety and challenges vis-à-vis large volume implementation. Catalytic carbonyl reductive couplings promoted via hydrogenation, transfer hydrogenation and hydrogen auto-transfer allow abundant unsaturated hydrocarbons to serve as substitutes to organometallic reagents, enabling C-C bond formation in the absence of stoichiometric metals. This perspective (a) highlights past milestones in catalytic hydrogenation, hydrogen transfer and hydrogen auto-transfer, (b) summarizes current methods for catalytic enantioselective carbonyl reductive couplings, and (c) describes future opportunities based on the patterns of reactivity that animate transformations of this type.
Collapse
Affiliation(s)
| | - Michael J Krische
- University of Texas at Austin, Department of Chemistry, Austin, TX 78712, USA
| |
Collapse
|
5
|
Zhao QR, Jiang R, You SL. Ir-catalyzed Sequential Asymmetric Allylic Substitution/Olefin Isomerization for the Synthesis of Axially Chiral Compounds. ACTA CHIMICA SINICA 2021. [DOI: 10.6023/a21070320] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
6
|
Wu S, Xing Y, Wang J, Guo X, Zhu H, Li W. Axially chiral N,N'-dioxides ethers for catalysis in enantioselective allylation of aldehydes. Chirality 2019; 31:947-957. [PMID: 31456306 DOI: 10.1002/chir.23122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 06/16/2019] [Accepted: 07/12/2019] [Indexed: 01/14/2023]
Abstract
A series of axially chiral ethers synthesized from biscarboline N,N'-dioxides, (S)-1a to (S)-1n, was investigated in enantioselectivity addition reactions of allyltrichlorosilane with a series of substituted aldehydes, including bulky substituted aldehydes. High enantioselectivities (up to 96%ee) were achieved using the catalyst (S)-1k at 1 mol % loading.
Collapse
Affiliation(s)
- Shijie Wu
- College of Pharmacy, Hebei University, Baoding, China
| | - Yongfei Xing
- College of Pharmacy, Hebei University, Baoding, China
| | - Jie Wang
- College of Pharmacy, Hebei University, Baoding, China
| | - Xingchen Guo
- College of Pharmacy, Hebei University, Baoding, China
| | - Huajie Zhu
- College of Pharmacy, Hebei University, Baoding, China
| | - Wan Li
- College of Pharmacy, Hebei University, Baoding, China
| |
Collapse
|
7
|
Schwartz LA, Krische MJ. Hydrogen-Mediated C−C Bond Formation: Stereo- and Site-Selective Chemical Synthesis Beyond Stoichiometric Organometallic Reagents. Isr J Chem 2017. [DOI: 10.1002/ijch.201700088] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Leyah A. Schwartz
- University of Texas at Austin; Department of Chemistry, Welch Hall (A5300); 105 E 24 St. Austin TX 78712 USA
| | - Michael J. Krische
- University of Texas at Austin; Department of Chemistry, Welch Hall (A5300); 105 E 24 St. Austin TX 78712 USA
| |
Collapse
|
8
|
Kim SW, Zhang W, Krische MJ. Catalytic Enantioselective Carbonyl Allylation and Propargylation via Alcohol-Mediated Hydrogen Transfer: Merging the Chemistry of Grignard and Sabatier. Acc Chem Res 2017; 50:2371-2380. [PMID: 28792731 DOI: 10.1021/acs.accounts.7b00308] [Citation(s) in RCA: 210] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Merging the characteristics of transfer hydrogenation and carbonyl addition, we have developed a new class of catalytic enantioselective C-C bond formations. In these processes, hydrogen transfer between alcohols and π-unsaturated reactants generates carbonyl-organometal pairs that combine to deliver products of addition. On the basis of this mechanistic paradigm, lower alcohols are converted directly to higher alcohols in the absence of premetalated reagents or discrete alcohol-to-carbonyl redox reactions. In certain cases, due to a pronounced kinetic preference for primary versus secondary alcohol dehydrogenation, diols and higher polyols are found to engage in catalytic stereo- and site-selective C-C bond formation-a capability that further enhances efficiency by enabling skeletal construction events without extraneous manipulations devoted to the installation and removal of protecting groups. While this Account focuses on redox-neutral couplings of alcohols, corresponding aldehyde reductive couplings mediated by 2-propanol were developed in parallel for most of the catalytic transformations reported herein. Mechanistically, two distinct classes of alcohol C-H functionalizations have emerged, which are distinguished by the mode of pronucleophile activation, specifically, processes wherein alcohol oxidation is balanced by (a) π-bond hydrometalation or (b) C-X bond reductive cleavage. Each pathway offers access to allylmetal or allenylmetal intermediates and, therefrom, enantiomerically enriched homoallylic or homopropargylic alcohol products, respectively. In the broadest terms, carbonyl addition mediated by premetalated reagents has played a central role in synthetic organic chemistry for well over a century, but the requisite organometallic reagents pose issues of safety, require multistep syntheses, and generate stoichiometric quantities of metallic byproducts. The concepts and catalytic processes described in this Account, conceived and developed wholly within the author's laboratory, signal a departure from the use of stoichiometric organometallic reagents in carbonyl addition. Rather, they reimagine carbonyl addition as a hydrogen autotransfer process or cross-coupling in which alcohol reactants, by virtue of their native reducing ability, drive the generation of transient organometallic nucleophiles and, in doing so, serve dually as carbonyl proelectrophiles. The catalytic allylative and propargylative transformations developed to date display capabilities far beyond their classical counterparts, and their application to the total synthesis of type-I polyketide natural products have evoked a step-change in efficiency. More importantly, the present data suggest that diverse transformations traditionally reliant on premetalated reagents may now be conducted catalytically without stoichiometric metals. This Account provides the reader and potential practitioner with a catalog of enantioselective alcohol-mediated carbonyl additions-a user's guide, 10-year retrospective, and foundation for future work in this emerging area of catalytic C-C bond formation.
Collapse
Affiliation(s)
- Seung Wook Kim
- Department of Chemistry, University of Texas at Austin, Welch
Hall (A5300), 105 East 24th Street, Austin, Texas 78712, United States
| | - Wandi Zhang
- Department of Chemistry, University of Texas at Austin, Welch
Hall (A5300), 105 East 24th Street, Austin, Texas 78712, United States
| | - Michael J. Krische
- Department of Chemistry, University of Texas at Austin, Welch
Hall (A5300), 105 East 24th Street, Austin, Texas 78712, United States
| |
Collapse
|
9
|
Guidotti BB, Coelho F. Sequential Morita–Baylis–Hillman/Achmatowicz reactions: an expeditious access to pyran-3(6H)-ones with a unique substitution pattern. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.09.120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
10
|
Affiliation(s)
- Dong Wang
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| | - Didier Astruc
- ISM, Université de Bordeaux, 351 Cours de la Libération, 33405 Talence Cedex, France
| |
Collapse
|
11
|
|
12
|
Nicklaus CM, Minnaard AJ, Feringa BL, de Vries JG. Synthesis of renewable fine-chemical building blocks by reductive coupling between furfural derivatives and terpenes. CHEMSUSCHEM 2013; 6:1631-1635. [PMID: 23857755 DOI: 10.1002/cssc.201300179] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Revised: 05/05/2013] [Indexed: 06/02/2023]
Abstract
Sugar and Spice…: The use of renewable resources to produce fine chemicals is an underdeveloped area. A waste-free technology will be necessary to further convert platform chemicals, readily available from biomass. We show that furfurals, which can be obtained from C5 sugars, can be coupled with terpenes in up to 95% yield through ruthenium-catalyzed reductive couplings developed by Krische et al.
Collapse
Affiliation(s)
- Céline M Nicklaus
- Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747 AG Groningen (The Netherlands), Fax: (+31) 50-363-4296
| | | | | | | |
Collapse
|
13
|
Cao H, Zhan H, Cen J, Lin J, Lin Y, Zhu Q, Fu M, Jiang H. Copper-Catalyzed C–O Bond Formation: An Efficient One-Pot Highly Regioselective Synthesis of Furans from (2-Furyl)Carbene Complexes. Org Lett 2013; 15:1080-3. [DOI: 10.1021/ol400080e] [Citation(s) in RCA: 118] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Hua Cao
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. of China, and School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Haiying Zhan
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. of China, and School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jinghe Cen
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. of China, and School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jingxin Lin
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. of China, and School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Yuanguang Lin
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. of China, and School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Qiuxia Zhu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. of China, and School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Minling Fu
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. of China, and School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou 510006, P. R. of China, and School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| |
Collapse
|
14
|
Gnanamani E, Someshwar N, Ramanathan CR. Conformationally Rigid Chiral Pyridine N-Oxides as Organocatalyst: Asymmetric Allylation of Aldehydes. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201200115] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
15
|
Bolduc KL, Larsen SD, Sherman DH. Efficient, divergent synthesis of cryptophycin unit A analogues. Chem Commun (Camb) 2012; 48:10.1039/c2cc32417b. [PMID: 22617820 PMCID: PMC3494784 DOI: 10.1039/c2cc32417b] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A flexible and divergent synthesis of cryptophycin unit A analogues is described. This method relies on iridium-catalysed stereo- and enantioselective crotylation and chemoselective one-pot oxidative olefination to access common intermediate . Heck, cross metathesis, and Suzuki-Miyaura reactions are illustrated for the generation of methyl ester unit A analogues .
Collapse
Affiliation(s)
- Kyle L. Bolduc
- Life Sciences Institute and Departments of Medicinal Chemistry, Chemistry, and Microbiology & Immunology, University of Michigan, Ann Arbor, MI 48109, United States
| | - Scott D. Larsen
- Life Sciences Institute and Departments of Medicinal Chemistry, Chemistry, and Microbiology & Immunology, University of Michigan, Ann Arbor, MI 48109, United States
| | - David H. Sherman
- Life Sciences Institute and Departments of Medicinal Chemistry, Chemistry, and Microbiology & Immunology, University of Michigan, Ann Arbor, MI 48109, United States
| |
Collapse
|
16
|
Leung JC, Patman RL, Sam B, Krische MJ. Alkyne-aldehyde reductive C-C coupling through ruthenium-catalyzed transfer hydrogenation: direct regio- and stereoselective carbonyl vinylation to form trisubstituted allylic alcohols in the absence of premetallated reagents. Chemistry 2011; 17:12437-43. [PMID: 21953608 DOI: 10.1002/chem.201101554] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Revised: 08/11/2011] [Indexed: 11/08/2022]
Abstract
Nonsymmetric 1,2-disubstituted alkynes engage in reductive coupling to a variety of aldehydes under the conditions of ruthenium-catalyzed transfer hydrogenation by employing formic acid as the terminal reductant and delivering the products of carbonyl vinylation with good to excellent levels of regioselectivity and with complete control of olefin stereochemistry. As revealed in an assessment of the ruthenium counterion, iodide plays an essential role in directing the regioselectivity of C-C bond formation. Isotopic labeling studies corroborate reversible catalytic propargyl C-H oxidative addition in advance of the C-C coupling, and demonstrate that the C-C coupling products do not experience reversible dehydrogenation by way of enone intermediates. This transfer hydrogenation protocol enables carbonyl vinylation in the absence of stoichiometric metallic reagents.
Collapse
Affiliation(s)
- Joyce C Leung
- University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station, A5300, Austin, TX 78712-1167, USA
| | | | | | | |
Collapse
|
17
|
Liu C, Liao S, Li Q, Feng S, Sun Q, Yu X, Xu Q. Discovery and Mechanistic Studies of a General Air-Promoted Metal-Catalyzed Aerobic N-Alkylation Reaction of Amides and Amines with Alcohols. J Org Chem 2011; 76:5759-73. [DOI: 10.1021/jo200862p] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Chuanzhi Liu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P.R. China
| | - Shiheng Liao
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P.R. China
| | - Qiang Li
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P.R. China
| | - Sunlin Feng
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P.R. China
| | - Qing Sun
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P.R. China
| | - Xiaochun Yu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P.R. China
| | - Qing Xu
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P.R. China
| |
Collapse
|
18
|
Duan Y, Chen M, Ye Z, Wang D, Chen Q, Zhou Y. An Enantioselective Approach to 2,3‐Disubstituted Indolines through Consecutive Brønsted Acid/Pd‐Complex‐Promoted Tandem Reactions. Chemistry 2011; 17:7193-7. [DOI: 10.1002/chem.201100576] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Ying Duan
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian 116023 (P.R. China), Fax: (+86) 411‐84379220
| | - Mu‐Wang Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian 116023 (P.R. China), Fax: (+86) 411‐84379220
| | - Zhi‐Shi Ye
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian 116023 (P.R. China), Fax: (+86) 411‐84379220
| | - Duo‐Sheng Wang
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian 116023 (P.R. China), Fax: (+86) 411‐84379220
| | - Qing‐An Chen
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian 116023 (P.R. China), Fax: (+86) 411‐84379220
| | - Yong‐Gui Zhou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), 457 Zhongshan Road, Dalian 116023 (P.R. China), Fax: (+86) 411‐84379220
| |
Collapse
|
19
|
Gao X, Zhang YJ, Krische MJ. Iridium-Catalyzed anti-Diastereo- and Enantioselective Carbonyl (α-Trifluoromethyl)allylation from the Alcohol or Aldehyde Oxidation Level. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201008296] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
20
|
Gao X, Zhang YJ, Krische MJ. Iridium-catalyzed anti-diastereo- and enantioselective carbonyl (α-trifluoromethyl)allylation from the alcohol or aldehyde oxidation level. Angew Chem Int Ed Engl 2011; 50:4173-5. [PMID: 21472938 DOI: 10.1002/anie.201008296] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2010] [Revised: 02/28/2011] [Indexed: 11/10/2022]
Affiliation(s)
- Xin Gao
- University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station-A5300, Austin, TX 78712-1167, USA
| | | | | |
Collapse
|
21
|
Hassan A, Zbieg JR, Krische MJ. Enantioselective iridium-catalyzed vinylogous Reformatsky-aldol reaction from the alcohol oxidation level: linear regioselectivity by way of carbon-bound enolates. Angew Chem Int Ed Engl 2011; 50:3493-6. [PMID: 21381171 PMCID: PMC3162040 DOI: 10.1002/anie.201100646] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Indexed: 11/12/2022]
Affiliation(s)
- Abbas Hassan
- University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station—A5300, Austin, TX 78712-1167 (USA)
| | - Jason R. Zbieg
- University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station—A5300, Austin, TX 78712-1167 (USA)
| | - Michael J. Krische
- University of Texas at Austin, Department of Chemistry and Biochemistry, 1 University Station—A5300, Austin, TX 78712-1167 (USA)
| |
Collapse
|
22
|
Affiliation(s)
- Takeyuki Suzuki
- The Institute of Scientific and Industrial Research, Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| |
Collapse
|
23
|
Gao X, Townsend IA, Krische MJ. Enhanced anti-diastereo- and enantioselectivity in alcohol-mediated carbonyl crotylation using an isolable single component iridium catalyst. J Org Chem 2011; 76:2350-4. [PMID: 21375283 DOI: 10.1021/jo200068q] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The cyclometalated iridium complex (S)-I derived from [Ir(cod)Cl](2), 4-cyano-3-nitrobenzoic acid, allyl acetate, and (S)-SEGPHOS is conveniently isolated by precipitation or through conventional silica gel flash chromatography. This single-component precatalyst allows alcohol mediated carbonyl crotylations to be performed at significantly lower temperature, resulting in enhanced levels of anti-diastereo- and enantioselectivity. Most significantly, the chromatographically isolated precatalyst (S)-I enables carbonyl crotylations that are not possible under previously reported conditions involving in situ generation of (S)-I.
Collapse
Affiliation(s)
- Xin Gao
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, USA
| | | | | |
Collapse
|
24
|
Hassan A, Zbieg JR, Krische MJ. Enantioselective Iridium-Catalyzed Vinylogous Reformatsky-Aldol Reaction from the Alcohol Oxidation Level: Linear Regioselectivity by Way of Carbon-Bound Enolates. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100646] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
25
|
Rössle M, Del Valle DJ, Krische MJ. Synthesis of the cytotrienin A core via metal catalyzed C-C coupling. Org Lett 2011; 13:1482-5. [PMID: 21323372 DOI: 10.1021/ol200160p] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A synthetic approach to the C17-benzene ansamycins via metal catalyzed C-C coupling is described. Key bond formations include direct iridium catalyzed carbonyl crotylation from the alcohol oxidation level followed by chelation-controlled Sakurai-Seyferth dienylation to form the stereotriad, which is attached to the arene via Suzuki cross-coupling. The diene-containing carboxylic acid is prepared using rhodium catalyzed acetylene-aldehyde reductive C-C coupling mediated by gaseous hydrogen. Finally, ring-closing metathesis delivers the cytotrienin core.
Collapse
Affiliation(s)
- Michael Rössle
- University of Texas at Austin, Department of Chemistry and Biochemistry, Austin, Texas 78712, United States
| | | | | |
Collapse
|
26
|
Zbieg JR, Fukuzumi T, Krische MJ. Iridium Catalyzed Hydro-hydroxyalkylation of Butadiene: Carbonyl Crotylation. Adv Synth Catal 2010; 352:2416-2420. [PMID: 21165157 PMCID: PMC3001632 DOI: 10.1002/adsc.201000599] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Exposure of alcohols 1a-1i to butadiene in the presence of a cyclometallated iridium catalyzed derived from allyl acetate, 4-methoxy-3-nitrobenzoic acid and BIPHEP (2,2'-bis(diphenylphosphino)biphenyl) results in hydrogen transfer to generate aldehyde-allyliridium pairs, which engage in C-C coupling to form products of carbonyl crotylation. Under related conditions using 1,4-butanediol as hydrogen donor, butadiene reductively couples to aldehydes 2e-2g and 2i to furnish carbonyl crotylation products 3e-3g and 3i. Thus, butadiene mediated carbonyl crotylation occurs with equal facility from the alcohol or aldehyde oxidation level with complete levels of branched regioselectivity.
Collapse
Affiliation(s)
- Jason R. Zbieg
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712, USA, Fax: (+1)-512-471-8696;
| | - Takeo Fukuzumi
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712, USA, Fax: (+1)-512-471-8696;
| | - Michael J. Krische
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, TX 78712, USA, Fax: (+1)-512-471-8696;
| |
Collapse
|
27
|
Han SB, Gao X, Krische MJ. Iridium-catalyzed anti-diastereo- and enantioselective carbonyl (trimethylsilyl)allylation from the alcohol or aldehyde oxidation level. J Am Chem Soc 2010; 132:9153-6. [PMID: 20540509 DOI: 10.1021/ja103299f] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Using the ortho-cyclometalated pi-allyl iridium precatalyst (R)-I derived from [Ir(cod)Cl](2), 4-cyano-3-nitrobenzoic acid, (R)-SEGPHOS, and allyl acetate, enantioselective transfer hydrogenation of alpha-(trimethylsilyl)allyl acetate in the presence of aldehydes 2a-i mediated by 2-propanol delivers products of (trimethylsilyl)allylation 4a-i in good isolated yields and with exceptional levels of anti-diastereoselectivity and enantioselectivity (90-99% ee). In the absence of 2-propanol, but under otherwise identical reaction conditions, carbonyl (trimethylsilyl)allylation is achieved directly from the alcohol oxidation level to furnish an equivalent set of adducts 4a-i with roughly equivalent isolated yields and stereoselectivities. To evaluate the synthetic utility of the reaction products 4a-i, adduct 4g was converted to the 1,4-ene-diol 5g via dioxirane-mediated oxidative desilylation with allylic transposition, the allylic alcohol 6g via protodesilylation with allylic transposition, and the gamma-lactam 7g via chlorosulfonyl isocyanate-mediated cycloaddition.
Collapse
Affiliation(s)
- Soo Bong Han
- Department of Chemistry and Biochemistry, University of Texas at Austin, Austin, Texas 78712, USA
| | | | | |
Collapse
|
28
|
Han SB, Kim IS, Han H, Krische MJ. Enantioselective Carbonyl Reverse Prenylation from the Alcohol or Aldehyde Oxidation Level Employing 1,1-Dimethylallene as the Prenyl Donor. J Am Chem Soc 2010. [DOI: 10.1021/ja105736a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|