1
|
Hicks EF, Inoue K, Stoltz BM. Enantioselective Total Synthesis of (-)-Hunterine A Enabled by a Desymmetrization/Rearrangement Strategy. J Am Chem Soc 2024; 146:4340-4345. [PMID: 38346145 PMCID: PMC10885145 DOI: 10.1021/jacs.3c13590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2024]
Abstract
The first enantioselective total synthesis of (-)-hunterine A is disclosed. Our strategy employs a catalytic asymmetric desymmetrization of a symmetrical diketone and subsequent Beckmann rearrangement to construct a 5,6-α-aminoketone. A convergent 1,2-addition joins a vinyl dianion nucleophile and the enantioenriched ketone. The endgame of the synthesis features an aza-Cope/Mannich reaction and azide-olefin dipolar cycloaddition to complete the pentacyclic ring system. The synthesis is completed through a regioselective aziridine ring opening.
Collapse
Affiliation(s)
- Elliot F Hicks
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Kengo Inoue
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| | - Brian M Stoltz
- The Warren and Katharine Schlinger Laboratory for Chemistry and Chemical Engineering, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, United States
| |
Collapse
|
2
|
Fujioka H. Development of New Innovative Synthetic Organic Chemistry Using Lone Pairs of Oxygen Atoms. Chem Pharm Bull (Tokyo) 2020; 68:907-945. [PMID: 32999145 DOI: 10.1248/cpb.c20-00178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Oxygen atoms have a lone pair of electrons, so they have high chelation ability, high nucleophilic ability, stabilizing ability of adjacent cations, and take a chelate or oxocarbenium ion structure with Lewis acids and metals. I took advantage of these properties to develop three new reactions, 1) asymmetric synthesis of chiral quaternary carbon centers, 2) asymmetric synthesis using acetal functions, and 3) organic chemistry using acetal-type reactive salt chemical species, and applied them to biologically active natural products synthesis. New reactions described here are all innovative and useful for natural products synthesis. In particular, the first asymmetric synthesis of fredericamycin A, and concise asymmetric synthesis of anthracycline antibiotics, scyphostatin, (+)-Sch 642305, (-)-stenine, clavolonine, (+)-rubrenolide, (+)-rubrynolide, (+)-centrolobine, and decytospolide A and B, etc., are noteworthy. Furthermore, since reactions using acetal-type reactive salt chemical species allow the coexistence of functional groups that normally cannot coexist, the reactions using reactive salts have potential to change the retrosynthesis planned based on conventional reactions.
Collapse
Affiliation(s)
- Hiromichi Fujioka
- The Institute of Scientific and Industrial Research, Osaka University
| |
Collapse
|
3
|
|
4
|
Ohta R, Fujioka H. Chemoselective Reduction and Alkylation of Carbonyl Functions Using Phosphonium Salts as an in Situ Protecting Groups. Chem Pharm Bull (Tokyo) 2017; 65:10-18. [DOI: 10.1248/cpb.c16-00222] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Reiya Ohta
- Graduate School of Pharmaceutical Sciences, Osaka University
| | | |
Collapse
|
5
|
Yahata K, Minami M, Watanabe K, Fujioka H. Selective Transformations of Carbonyl Functions in the Presence of α,β-Unsaturated Ketones: Concise Asymmetric Total Synthesis of Decytospolides A and B. Org Lett 2014; 16:3680-3. [DOI: 10.1021/ol501463p] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Kenzo Yahata
- Graduate School of Pharmaceutical
Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Masaki Minami
- Graduate School of Pharmaceutical
Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Kei Watanabe
- Graduate School of Pharmaceutical
Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Hiromichi Fujioka
- Graduate School of Pharmaceutical
Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| |
Collapse
|
6
|
Zhang A, Cai L, Yao Z, Xu F, Shen Q. Lanthanide-Catalyzed Selective Addition of Diethyl Phosphite to Chalcones. HETEROATOM CHEMISTRY 2013. [DOI: 10.1002/hc.21099] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Aijiao Zhang
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; Suzhou; 215123; People's Republic of China
| | - Lijian Cai
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; Suzhou; 215123; People's Republic of China
| | - Zhigang Yao
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; Suzhou; 215123; People's Republic of China
| | - Fan Xu
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; Suzhou; 215123; People's Republic of China
| | - Qi Shen
- College of Chemistry; Chemical Engineering and Materials Science; Soochow University; Suzhou; 215123; People's Republic of China
| |
Collapse
|
7
|
Jung SH, Jang SY. BF3·OEt2-Mediated Ring Opening of Oxetanes with Ylides Derived from the Phosphoniosilylation Products of Enones. B KOREAN CHEM SOC 2010. [DOI: 10.5012/bkcs.2010.31.11.3431] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
8
|
Tietze LF, Braun H, Steck PL, El Bialy SA, Tölle N, Düfert A. Efficient synthesis of cephalotaxine- and deoxyharringtonine analogues by a trimethylaluminium-mediated domino reaction. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.03.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
9
|
Kim JH, Jung SH. TBSOTf-assisted three component coupling of epoxides, THF, and ylides derived from the phosphoniosilylation products of enones and α,β-unsaturated lactones. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.04.067] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
10
|
Enders D, Saint‐Dizier A, Lannou M, Lenzen A. The Phospha‐Michael Addition in Organic Synthesis. European J Org Chem 2005. [DOI: 10.1002/ejoc.200500593] [Citation(s) in RCA: 286] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dieter Enders
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany, Fax: +49‐241‐809 2127
| | - Alexandre Saint‐Dizier
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany, Fax: +49‐241‐809 2127
| | - Marie‐Isabelle Lannou
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany, Fax: +49‐241‐809 2127
| | - Achim Lenzen
- Institut für Organische Chemie, RWTH Aachen, Landoltweg 1, 52074 Aachen, Germany, Fax: +49‐241‐809 2127
| |
Collapse
|
11
|
Facile β-Alkoxycarbonylation and β-Acylation of α,β-Unsaturated Lactones and Esters via the Phosphoniosilylation Process. B KOREAN CHEM SOC 2004. [DOI: 10.5012/bkcs.2004.25.11.1729] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
12
|
Facile Preparation of Alkylidenesuccinimides from Maleimides via the Phosphoniosilylation Process. B KOREAN CHEM SOC 2004. [DOI: 10.5012/bkcs.2004.25.7.1088] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
13
|
|
14
|
Lee K, Kim H, Miura T, Kiyota K, Kusama H, Kim S, Iwasawa N, Lee PH. Indium-mediated beta-allylation, beta-propargylation, and beta-allenylation onto alpha,beta-unsaturated ketones: reactions of in-situ-generated 3-tert-butyldimethylsilyloxyalk-2-enylsulfonium salts with in-situ-generated organoindium reagents. J Am Chem Soc 2003; 125:9682-8. [PMID: 12904034 DOI: 10.1021/ja035988m] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
3-tert-Butyldimethylsilyloxyalk-2-enylsulfonium salts, generated in situ from the reaction of alpha,beta-enones with dimethyl sulfide in the presence of TBSOTf, underwent a novel nucleophilic substitution with allylindiums to give silyl enol ethers of delta,epsilon-alkenyl ketones in good yields, which correspond to formal Michael addition products. In a similar manner, 1,4-propargylation of propargylindiums onto the sulfonium salts produced the corresponding silyl enol ethers of delta,epsilon-alkynyl ketones in good yields. Organoindium reagents derived from gamma-substituted propargyl bromide and indium afforded the corresponding silyl enol ethers of beta-allenyl ketones in good yields. The reaction proceeds via an addition-substitution mechanism involving the formation of allylic sulfonium salts. The presence of the intermediate sulfonium salt was confirmed by observation of the low-temperature (1)H NMR spectra.
Collapse
Affiliation(s)
- Kooyeon Lee
- Department of Chemistry, Kangwon National University, Chunchon 200-701, Republic of Korea
| | | | | | | | | | | | | | | |
Collapse
|
15
|
Fleming FF, Wang Q. Unsaturated nitriles: conjugate additions of carbon nucleophiles to a recalcitrant class of acceptors. Chem Rev 2003; 103:2035-77. [PMID: 12744700 DOI: 10.1021/cr020045d] [Citation(s) in RCA: 289] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fraser F Fleming
- Department of Chemistry and Biochemistry, Duquesne University, Pittsburgh, Pennsylvania 15282-1530, USA.
| | | |
Collapse
|
16
|
Lee PH, Seomoon D, Lee K, Heo Y. Highly efficient 1,4-addition of 1,3-diesters to conjugated enones by In/TMSCl. J Org Chem 2003; 68:2510-3. [PMID: 12636429 DOI: 10.1021/jo026600t] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Organoindium reagents derived from indium and diethyl bromomalonates were added to a wide range of conjugated enones in a 1,4-fashion in the presence of TMSCl under mild conditions, and corresponding oxo-1,3-diesters were obtained in good to excellent yields.
Collapse
Affiliation(s)
- Phil Ho Lee
- Department of Chemistry, Kangwon National University, Chunchon 200-701, Republic of Korea.
| | | | | | | |
Collapse
|
17
|
Kuroda H, Tomita I, Endo T. Novel phosphine-catalyzed zipper cyclization of aliphatic diyne-dione and yne-dione systems. Org Lett 2003; 5:129-31. [PMID: 12529122 DOI: 10.1021/ol020198n] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] An unexpected tri-n-butylphosphine-catalyzed zipper cyclization of diyne[bond]diones (1a-d) or yne-diones (1e and 1f) is described. Bicyclic ketones (2a, 2b, 2c, 2e, and 2f) with five- or six-membered rings fused to the five-membered ring were obtained from both aliphatic diyne-diones (1a-c) and yne-diones (1e and 1f) having tetra- or pentamethylene spacers. The bicyclic products (2) were produced with high diastereoselectivity.
Collapse
Affiliation(s)
- Hirofumi Kuroda
- Chemical Resources Laboratory, Tokyo Institute of Technology, Nagatsuta-cho 4259, Midori-ku, Yokohama 226-8502, Japan
| | | | | |
Collapse
|
18
|
|
19
|
|
20
|
Lee PH, Lee K, Kim S. A novel nucleophilic substitution of in situ generated 3-tert-butyldimethyl- silyloxyalk-2-enylsulfonium salts with allylindium reagents. Org Lett 2001; 3:3205-7. [PMID: 11574031 DOI: 10.1021/ol016542i] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[reaction: see text] In situ generated 3-tert-butyldimethylsilyloxyalk-2-enylsulfonium salts derived from the reaction of alpha,beta-enones with dimethyl sulfide in the presence of TBSOTf undergo a novel nucleophilic substitution with in situ generated allylindium reagents from indium and allyl halides to give silyl enol ethers of delta,epsilon-unsaturated ketones, which correspond to Michael addition products, in good yields.
Collapse
Affiliation(s)
- P H Lee
- Department of Chemistry, Kangwon National University, Chunchon 200-701, Republic of Korea
| | | | | |
Collapse
|
21
|
Affiliation(s)
- R Chinchilla
- Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, Apartado 99, 03080 Alicante, Spain
| | | |
Collapse
|
22
|
Lee PH, Cho M, Han IS, Kim S. Facile nucleophilic substitution of 3-tert-butyl-dimethylsilyloxyalk-2-enylphosphonium salts. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)01438-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
23
|
Lee PH, Lee B, Lee J, Park SK. Ring expansion reactionsvia endocyclic cleavage of cyclopropylcarbinyl radicals. Tetrahedron Lett 1999. [DOI: 10.1016/s0040-4039(99)00507-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
24
|
Lee PH, Lee J. SmI2-induced ring expansion reactions of alkyl (n+1)-oxobicyclo[n.1.0]alkane-1-carboxylates. Tetrahedron Lett 1998. [DOI: 10.1016/s0040-4039(98)01749-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
|
25
|
Opening of cyclopropyl ketones with SmI2. Synthesis of spirocyclic and bicyclic ketones by intramolecular trapping of an electrophile. Tetrahedron 1997. [DOI: 10.1016/s0040-4020(97)00499-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
26
|
Lee PH, Kim HS, Kim S. Efficient Transformation of α,β-Enone to Substituted Furans via Phosphoniosilylation. CHEM LETT 1994. [DOI: 10.1246/cl.1994.2401] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
27
|
Inanaga J, Baba Y, Hanamoto T. Organic Synthesis with Trialkylphosphine Catalysts. Conjugate Addition of Alcohols to α,β-Unsaturated Alkynic Acid Esters. CHEM LETT 1993. [DOI: 10.1246/cl.1993.241] [Citation(s) in RCA: 120] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
28
|
Pohmakotr M, Ratchataphusit J. 1-Lithio-2,2-diphenoxy-1-(phenylsulfonyl)cyclopropane as β-lithio acrylate and cyclopropanone acetal anion synthons. Tetrahedron 1993. [DOI: 10.1016/s0040-4020(01)80161-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
29
|
Huang PQ, Zhou WS. An Improved Method for the Syntheses of β-Substituted Cyclohexenones. SYNTHETIC COMMUN 1991. [DOI: 10.1080/00397919108021597] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
30
|
Arsoniosilylation of α,β-unsaturated carbonyl compounds. Direct synthesis of furans from α,β-enals. Tetrahedron Lett 1991. [DOI: 10.1016/0040-4039(91)80647-o] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
31
|
Kim S, Kim YG, Park JH. A simple procedure for α-alkoxyalkylation of α,β-enones via pyridiniosilylation. Tetrahedron Lett 1991. [DOI: 10.1016/s0040-4039(00)78903-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
32
|
Sunggak K, Youn CK. Allylic 1,3-rearrangement of 1-alkoxyallylphosphonium salts. Regiochemistry of reaction of 1-alkoxy-2-alkenylenephosphoranes with aldehydes. Tetrahedron Lett 1990. [DOI: 10.1016/0040-4039(90)80179-p] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
33
|
Dellaria JF, Sallin KJ. Wittig olefination in the absence of an exogenous base: A new synthesis of α-substituted primary allylic amines. Tetrahedron Lett 1990. [DOI: 10.1016/s0040-4039(00)94666-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
34
|
|