1
|
Kitzinger KM, Johnson JS. Oxidative Spirocyclization of β-Furyl Amides for the Assembly of Spiro-γ-butenolide-γ-butyrolactones. Org Lett 2023; 25:7446-7450. [PMID: 37788144 PMCID: PMC10591763 DOI: 10.1021/acs.orglett.3c03100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
The synthesis of heretofore unknown γ-spirobutenolides has been achieved via an m-CPBA-mediated oxidation of β-furyl amides. The reaction employs a tethered amide, ostensibly a poorly reactive carbonyl, as a nontraditional nucleophile resulting in spirolactone formation and concurrent amide cleavage. The transformation exhibits functional group tolerance and compatibility with complex compounds. In situ 1H NMR spectroscopic studies reveal the identities of key intermediates in the oxidation-spirolactonization-oxidation cascade, suggesting a plausible mechanistic pathway. The distinct diastereofaces of the electrophilic butenolide product may be used for diastereoselective cycloaddition and conjugate addition reactions.
Collapse
Affiliation(s)
- Katelyn M Kitzinger
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Jeffrey S Johnson
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| |
Collapse
|
2
|
Bal A, Dinda TK, Mal P. A Mechanochemical Aliphatic Iodination (and Bromination) by Cascaded Cyclization. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ankita Bal
- NISER: National Institute of Science Education and Research School of Chemical Sciences INDIA
| | - Tarun Kumar Dinda
- NISER: National Institute of Science Education and Research School of Chemical Sciences INDIA
| | - Prasenjit Mal
- NISER Bhubaneswar School of Chemical Sciences PO Bhimpur-PadanpurVia JatniDistrict Khurda 752050 Bhubaneswar INDIA
| |
Collapse
|
3
|
Yan J, Zhou Z, He Q, Chen G, Wei H, Xie W. The applications of catalytic asymmetric halocyclization in natural product synthesis. Org Chem Front 2022. [DOI: 10.1039/d1qo01395e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Catalytic asymmetric halocyclization of olefinic substrate has evolved rapidly and been well utilized as a practical strategy for constructing enantioenriched cyclic skeletons in natural product synthesis.
Collapse
Affiliation(s)
- Jiahang Yan
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Zhiqiang Zhou
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Qiaoqiao He
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Guzhou Chen
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Hongbo Wei
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
| | - Weiqing Xie
- Shaanxi Key Laboratory of Natural Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, 22 Xinong Road, Yangling 712100, Shaanxi, China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province, Yangling, Shaanxi 712100, China
| |
Collapse
|
4
|
Gataullin RR. The first synthesis of benzo[e]cycloalk[g]oxazocinone atropisomers via lactonization of N-mesyl- or N-arylsulfonyl-N-[2-(1-cycloalken-1-yl)-6-methylphenyl]glycines. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.132388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
5
|
China H, Kumar R, Kikushima K, Dohi T. Halogen-Induced Controllable Cyclizations as Diverse Heterocycle Synthetic Strategy. Molecules 2020; 25:molecules25246007. [PMID: 33353126 PMCID: PMC7765919 DOI: 10.3390/molecules25246007] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2020] [Revised: 12/14/2020] [Accepted: 12/14/2020] [Indexed: 11/24/2022] Open
Abstract
In organic synthesis, due to their high electrophilicity and leaving group properties, halogens play pivotal roles in the activation and structural derivations of organic compounds. Recently, cyclizations induced by halogen groups that allow the production of diverse targets and the structural reorganization of organic molecules have attracted significant attention from synthetic chemists. Electrophilic halogen atoms activate unsaturated and saturated hydrocarbon moieties by generating halonium intermediates, followed by the attack of carbon-containing, nitrogen-containing, oxygen-containing, and sulfur-containing nucleophiles to give highly functionalized carbocycles and heterocycles. New transformations of halogenated organic molecules that can control the formation and stereoselectivity of the products, according to the difference in the size and number of halogen atoms, have recently been discovered. These unique cyclizations may possibly be used as efficient synthetic strategies with future advances. In this review, innovative reactions controlled by halogen groups are discussed as a new concept in the field of organic synthesis.
Collapse
Affiliation(s)
- Hideyasu China
- Department of Medical Bioscience, Nagahama Institute of Bio-Science and Technology, 1266, Tamuracho Nagahama-shi, Shiga 526-0829, Japan
- Correspondence: (H.C.); (T.D.)
| | - Ravi Kumar
- Department of Chemistry, J. C. Bose University of Science & Technology, YMCA, NH-2, Sector-6, Mathura Road, Faridabad, Haryana 121006, India;
| | - Kotaro Kikushima
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-0058, Japan;
| | - Toshifumi Dohi
- College of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga 525-0058, Japan;
- Correspondence: (H.C.); (T.D.)
| |
Collapse
|
6
|
Danyliuk IY, Vaskevych AI, Vaskevych RI, Rusanov EB, Vovk MV. Cyclosulfenylation of N-(1(2)-naphthyl) styrylacetamides as a synthetic route to 4(2)-arylthio naphtho[1,2-b]([2,1-b])azepin-2(4)-ones. J Sulphur Chem 2020. [DOI: 10.1080/17415993.2020.1855431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ivanna Yu. Danyliuk
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Alla I. Vaskevych
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
- “Enamine Ltd” Scientific Production Association, Kyiv, Ukraine
| | - Ruslan I. Vaskevych
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Eduard B. Rusanov
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| | - Mykhailo V. Vovk
- Institute of Organic Chemistry, National Academy of Sciences of Ukraine, Kyiv, Ukraine
| |
Collapse
|
7
|
Synthesis of naphtho[1,2‐
b
]‐, naphtho[2,1‐
b
]‐, and naphtho[2,3‐
b
]azepinones via proton‐induced cyclization of
N
‐1(2)‐naphthyl styrylacetamides. J Heterocycl Chem 2020. [DOI: 10.1002/jhet.3779] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
8
|
Das S, Ko N, Lee E, Kim SE, Lee BC. Stereoselective three-component cascade synthesis of α-substituted 2,4-dienamides from gem-difluorochloro ethanes. Chem Commun (Camb) 2019; 55:14355-14358. [PMID: 31720605 DOI: 10.1039/c9cc07100h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we describe a new transition metal-free Claisen rearrangement for the synthesis of α-substituted 2,4-dienamides. The one-pot, stereoselective three-component cascade reaction between a series of propargyl alcohols, amines, and gem-difluorochloro ethane derivatives afforded various polysubstituted 2,4-dienamides in good yields. This synthetic method for 1,1-captodative dienes, α-substituted 2,4-dienamides, can be utilized for preparing pharmaceutical analogues containing an indolin-2-one or lactone moiety.
Collapse
Affiliation(s)
- Shyamsundar Das
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, 13620, Republic of Korea.
| | | | | | | | | |
Collapse
|
9
|
Deng B, Rao CB, Zhang R, Li J, Liang Y, Zhao Y, Gao M, Dong D. A Formal [3+2] Annulation of
β
‐Oxoamides and 3‐Alkyl‐ or 3‐Aryl‐Substituted Prop‐2‐Ynyl Sulfonium Salts: Substrate‐Controlled Chemoselective Synthesis of Substituted
γ
‐Lactams and Furans. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900693] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Bicheng Deng
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Chitturi Bhujanga Rao
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Rui Zhang
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Jiacheng Li
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Yongjiu Liang
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Yanning Zhao
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
| | - Ming Gao
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| | - Dewen Dong
- Key Laboratory of Preparation and Application of Environmental Friendly Materials of the Ministry of EducationJilin Normal University Changchun 130103 People's Republic of China
- Key Laboratory of High-Performance Synthetic Rubber and its Composites, Changchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 People's Republic of China
| |
Collapse
|
10
|
Mehta S, Brahmchari D. Phosphazene Superbase-Mediated Regio- and Stereoselective Iodoaminocyclization of 2-(1-Alkynyl)benzamides for the Synthesis of Isoindolin-1-ones. J Org Chem 2019; 84:5492-5503. [DOI: 10.1021/acs.joc.9b00452] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Saurabh Mehta
- Department of Applied Chemistry, Delhi Technological University, Delhi, 110042, India
| | - Dhirendra Brahmchari
- Department of Applied Chemistry, Delhi Technological University, Delhi, 110042, India
| |
Collapse
|
11
|
Yamamoto S, Komiya Y, Kobayashi A, Minamikawa R, Oishi T, Sato T, Chida N. Asymmetric Total Synthesis of Fasicularin by Chiral N-Alkoxyamide Strategy. Org Lett 2019; 21:1868-1871. [DOI: 10.1021/acs.orglett.9b00478] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Shio Yamamoto
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Yukinori Komiya
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Akihiro Kobayashi
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Ryo Minamikawa
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Takeshi Oishi
- School of Medicine, Keio University, 4-1-1, Hiyoshi,
Kohoku-ku, Yokohama 223-8521, Japan
| | - Takaaki Sato
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Noritaka Chida
- Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| |
Collapse
|
12
|
Siitonen JH, Yu L, Danielsson J, Di Gregorio G, Somfai P. Formal Synthesis of ent-Cephalotaxine Using a One-Pot Parham-Aldol Sequence. J Org Chem 2018; 83:11318-11322. [PMID: 30015484 DOI: 10.1021/acs.joc.8b01540] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
A short formal synthesis of ent-Cephalotaxine is achieved. The approach features a new Lewis acid-mediated [2,3]-Stevens rearrangement of N-allylated prolineamide to generate a key quaternary stereogenic center. Additionally, a one-pot Parham-aldol sequence was developed to rapidly assemble two of the four rings in the cephalotaxine core.
Collapse
Affiliation(s)
- Juha H Siitonen
- Center for Analysis and Synthesis, Department of Chemistry , Lund University , Box 124, 221 00 Lund , Sweden
| | - Lu Yu
- Center for Analysis and Synthesis, Department of Chemistry , Lund University , Box 124, 221 00 Lund , Sweden
| | - Jakob Danielsson
- Center for Analysis and Synthesis, Department of Chemistry , Lund University , Box 124, 221 00 Lund , Sweden
| | - Giovanni Di Gregorio
- Center for Analysis and Synthesis, Department of Chemistry , Lund University , Box 124, 221 00 Lund , Sweden
| | - Peter Somfai
- Center for Analysis and Synthesis, Department of Chemistry , Lund University , Box 124, 221 00 Lund , Sweden
| |
Collapse
|
13
|
Brahmchari D, Verma AK, Mehta S. Regio- and Stereoselective Synthesis of Isoindolin-1-ones through BuLi-Mediated Iodoaminocyclization of 2-(1-Alkynyl)benzamides. J Org Chem 2018; 83:3339-3347. [DOI: 10.1021/acs.joc.7b02903] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Dhirendra Brahmchari
- Department of Applied Chemistry, Delhi Technological University, Delhi, 110042, India
| | - Akhilesh K. Verma
- Synthetic Organic Chemistry Research Laboratory, Department of Chemistry, University of Delhi, Delhi 110007, India
| | - Saurabh Mehta
- Department of Applied Chemistry, Delhi Technological University, Delhi, 110042, India
| |
Collapse
|
14
|
Wang Y, Wang KH, Su Y, Yang Z, Wen L, Liu L, Wang J, Huang D, Hu Y. Cascade Oxidation/Halogenoaminocyclization Reaction of Trifluoromethylated Homoallylic N-Acylhydrazines: Metal-free Synthesis of CF 3-Substituted Pyrazolines. J Org Chem 2018; 83:939-950. [PMID: 29268606 DOI: 10.1021/acs.joc.7b02934] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
An efficient and practical cascade oxidation/halogenoaminocyclization of trifluoromethylated homoallylic N-acylhydrazines is developed. The protocol enables an efficient access to various biologically interesting CF3-containing pyrazoline compounds from readily accessible trifluoromethylated homoallylic N-acylhydrazines in good to excellent yields under mild conditions without any other additives or catalysts. The produced pyrazoline compounds can be further manipulated to other more complicated derivatives through transformation of residual halogen atom.
Collapse
Affiliation(s)
- Yuxiang Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University , 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Ke-Hu Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University , 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Yingpeng Su
- College of Chemistry and Chemical Engineering, Northwest Normal University , 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Zheng Yang
- College of Chemistry and Chemical Engineering, Northwest Normal University , 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Lan Wen
- College of Chemistry and Chemical Engineering, Northwest Normal University , 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Lili Liu
- College of Chemistry and Chemical Engineering, Northwest Normal University , 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Juanjuan Wang
- College of Chemistry and Chemical Engineering, Northwest Normal University , 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Danfeng Huang
- College of Chemistry and Chemical Engineering, Northwest Normal University , 967 Anning East Road, Lanzhou 730070, P. R. China
| | - Yulai Hu
- College of Chemistry and Chemical Engineering, Northwest Normal University , 967 Anning East Road, Lanzhou 730070, P. R. China.,State Key Laboratory of Applied Organic Chemistry, Lanzhou University , Lanzhou 730000, P. R. China
| |
Collapse
|
15
|
Yamane Y, Miyazaki K, Nishikata T. Different Behaviors of a Cu Catalyst in Amine Solvents: Controlling N and O Reactivities of Amide. ACS Catal 2016. [DOI: 10.1021/acscatal.6b02309] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yu Yamane
- Graduate School of Science
and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Koichiro Miyazaki
- Graduate School of Science
and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| | - Takashi Nishikata
- Graduate School of Science
and Engineering, Yamaguchi University, 2-16-1 Tokiwadai, Ube, Yamaguchi 755-8611, Japan
| |
Collapse
|
16
|
He G, Wang Y, Lai C, Li W, Hong R. Stereoselective construction of skipped polyol enabled by oxonia-Cope rearrangement and iodolactonization: enantioselective synthesis of (+)-yashabushitriol. Sci China Chem 2016. [DOI: 10.1007/s11426-016-0073-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
17
|
Serguchev YA, Ponomarenko MV, Ignat’ev NV. Aza-fluorocyclization of nitrogen-containing unsaturated compounds. J Fluor Chem 2016. [DOI: 10.1016/j.jfluchem.2016.02.010] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
18
|
Bondarenko NA, Vas’kevich AI, Bol’but AV, Rusanov EB, Vovk MV. Electrophilic cyclization of N-allyl(propargyl)-5-amino-1H-pyrazole-4-carboxamides. Synthesis of 4-[(dihydro)oxazol-2-yl]-1H-pyrazol-5-amines. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2016. [DOI: 10.1134/s1070428015120209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
19
|
Cheng YA, Yu WZ, Yeung YY. An unexpected Bromolactamization of Olefinic Amides Using a Three-Component Co-catalyst System. J Org Chem 2015; 81:545-52. [PMID: 26679219 DOI: 10.1021/acs.joc.5b02390] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Reaction between (N,N-dimethylamino)pyridine and isocyanate unexpectedly produced a three-component mixture. By using this mixture as an unprecedented three-component catalyst system, a facile and selective bromolactamization of olefinic amides has been developed. The protocol confers enhanced selectivity of N- over O-cyclization, leading to the formation of a structurally diverse range of lactams including both small and medium ring sizes.
Collapse
Affiliation(s)
- Yi An Cheng
- Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore 117543
| | - Wesley Zongrong Yu
- Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore 117543
| | - Ying-Yeung Yeung
- Department of Chemistry, The Chinese University of Hong Kong , Shatin, NT, Hong Kong, China.,Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore 117543
| |
Collapse
|
20
|
Valiullina ZR, Akhmet’yanova VA, Ivanova NA, Erastov AS, Meshcheryakova ES, Miftakhov MS. Haloiminolactonization of cyclopentene α,α-dichlorocarboxamides. Tandem rearrangement of iminolactones in epoxylactones. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2015. [DOI: 10.1134/s1070428015110020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
21
|
Tandem transformations of cyclopentene α,α-dichlorocarboxamides into epoxy lactones induced by a γ-hydroxyl group; a short synthesis of the Corey epoxy lactone and its enantiomer. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.10.106] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
22
|
Deng QH, Chen JR, Wei Q, Zhao QQ, Lu LQ, Xiao WJ. Visible-light-induced photocatalytic oxytrifluoromethylation of N-allylamides for the synthesis of CF3-containing oxazolines and benzoxazines. Chem Commun (Camb) 2015; 51:3537-40. [PMID: 25644314 DOI: 10.1039/c4cc10217g] [Citation(s) in RCA: 112] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A visible-light-induced photocatalytic oxytrifluoromethylation reaction of N-allylamides has been developed for the efficient synthesis of CF3-containing oxazolines and benzoxazines under mild reaction conditions.
Collapse
Affiliation(s)
- Qiao-Hui Deng
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, 152 Luoyu Road, Wuhan, Hubei 430079, China.
| | | | | | | | | | | |
Collapse
|
23
|
Lourie LF, Serguchev YA, Bentya AV, Ponomarenko MV, Rusanov EB, Vovk MV, Fokin AA, Ignat’ev NV. Metal free electrophilic fluoro-cyclization of unsaturated N-hydroxy- and N-acetoxyamides with N–F reagents. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2015.04.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
24
|
Šmit BM, Pavlović RZ, Milenković DA, Marković ZS. Mechanism, kinetics and selectivity of selenocyclization of 5-alkenylhydantoins: an experimental and computational study. Beilstein J Org Chem 2015; 11:1865-75. [PMID: 26664604 PMCID: PMC4661018 DOI: 10.3762/bjoc.11.200] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Accepted: 09/12/2015] [Indexed: 12/29/2022] Open
Abstract
The mechanism and selectivity of a bicyclic hydantoin formation by selenium-induced cyclization are investigated. The proposed mechanism involves the intermediates formed by an electrophilic addition of the selenium reagent on a double bond of the starting 5-alkenylhydantoin prior the cyclization. These intermediates are readily converted into the more stable cyclic seleniranium cations. A key step of the mechanism is an intramolecular cyclization which is realized through an anti-attack of the internal nucleophile, the amidic nitrogen, to the seleniranium cation yielding the intermediate imidazolinium cations. Their deprotonation is followed by the formation of the fused bicyclic reaction products. Important intermediates and key transition states are studied by using density functional theory (DFT) methods. The pathways of the reaction are investigated in detail. There are two regioselective pathways related to 5-exo and 6-endo products. Theoretical calculations and the monitoring of the cyclization reaction using (1)H NMR spectroscopy are in a good agreement with the proposed mechanism and are consistent with our experimental results. The preferred pathway for formation of 5-exo products is confirmed.
Collapse
Affiliation(s)
- Biljana M Šmit
- Faculty of Science, University of Kragujevac, Radoja Domanovića 12 P.O. Box 60, 34000 Kragujevac, Serbia
| | - Radoslav Z Pavlović
- Faculty of Science, University of Kragujevac, Radoja Domanovića 12 P.O. Box 60, 34000 Kragujevac, Serbia
| | - Dejan A Milenković
- Bioengineering Research and Development Center, 34000 Kragujevac, Serbia
| | - Zoran S Marković
- Bioengineering Research and Development Center, 34000 Kragujevac, Serbia
- Department of Chemical-Technological Sciences, State University of Novi Pazar, Vuka Karadžića bb, 36300 Novi Pazar, Serbia
| |
Collapse
|
25
|
Nieto J, Andrés C, Pérez-Encabo A. 7-endo selenocyclization reactions on chiral 3-prenyl and 3-cinnamyl-2-hydroxymethylperhydro-1,3-benzoxazine derivatives. A way to enantiopure 1,4-oxazepanes. Org Biomol Chem 2015. [PMID: 26223944 DOI: 10.1039/c5ob01297j] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Enantiopure 1,4-oxazepane derivatives have been prepared by selenocyclofunctionalization of chiral 3-prenyl- and 3-cinnamyl-2-hydroxymethyl-substituted perhydro-1,3-benzoxazine derivatives. The 7-endo-cyclization occurs in high yields and diastereoselection. The regio- and stereochemistry of the cyclization products was dependent on the substitution pattern of the double bond, the nature of the hydroxyl group and the experimental conditions.
Collapse
Affiliation(s)
- Javier Nieto
- Instituto CINQUIMA and Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Valladolid, Paseo de Belén, 7, 47011 Valladolid, Spain.
| | | | | |
Collapse
|
26
|
Noto N, Miyazawa K, Koike T, Akita M. Anti-Diastereoselective Synthesis of CF3-Containing Spirooxazolines and Spirooxazines via Regiospecific Trifluoromethylative Spirocyclization by Photoredox Catalysis. Org Lett 2015; 17:3710-3. [PMID: 26181341 DOI: 10.1021/acs.orglett.5b01694] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A novel synthesis of CF3-containing spirooxazolines and spirooxazines has been developed. Regiospecific trifluoromethylative spirocyclization (CF3-spirocyclization) of cyclic alkenes bearing an amide pendant mediated by photoredox catalysis is a useful strategy for construction of a C(sp(3))-CF3 bond and an spirooxazoline or spirooxazine ring onto C═C bonds via a single step. The key intermediate is α-CF3-substituted carbocationic species smoothly generated from single-electron-transfer (SET) photoredox processes, which results in diastereoselective spirocyclization. This is the first example of synthesis of CF3-containing spirooxazolines and spirooxazines in anti-fashion with respect to the CF3 group and the oxygen atom of the spirocycles.
Collapse
Affiliation(s)
- Naoki Noto
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Kazuki Miyazawa
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Takashi Koike
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Munetaka Akita
- Chemical Resources Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| |
Collapse
|
27
|
Tang Y, Han R, Lv M, Chen Y, Yang P. Tandem synthesis of pyrroloisoquinolines through 5-endo iodolactamization, oxidative functionalization and α-amidoalkylation reaction. Tetrahedron 2015. [DOI: 10.1016/j.tet.2015.04.057] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
28
|
Christmann M, Hu J, Kitamura M, Stoltz B. Tetrahedron reports on organic chemistry. Tetrahedron 2015. [DOI: 10.1016/s0040-4020(15)00744-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
29
|
Chen J, Chen C, Chen J, Wang G, Qu H. Cu-catalyzed intramolecular aryl-etherification reactions of alkoxyl alkynes with diaryliodonium salts via cleavage of a stable C–O bond. Chem Commun (Camb) 2015; 51:1356-9. [DOI: 10.1039/c4cc08363f] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cu-catalyzed aryl-etherification reactions of alkoxyl alkynes with diaryliodonium salts are realized to produce oxo-heterocyclesviacleavage of a stable C–O bond.
Collapse
Affiliation(s)
- Jing Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Chao Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Junjie Chen
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Guohua Wang
- Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education)
- Department of Chemistry
- Tsinghua University
- Beijing 100084
- China
| | - Hongmei Qu
- Key Laboratory of Systems Bioengineering
- Ministry of Education
- Department of Pharmaceutical Engineering
- School of Chemical Engineering and Technology
- Tianjin University
| |
Collapse
|
30
|
Zhang ZQ, Liu F. CuX2-mediated oxybromination/aminochlorination of unsaturated amides: synthesis of iminolactones and lactams. Org Biomol Chem 2015; 13:6690-3. [DOI: 10.1039/c5ob00520e] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A CuX2-mediated halocyclization of γ,δ-unsaturated amides for the synthesis of functionalized iminolactones and lactams respectively is described.
Collapse
Affiliation(s)
- Zhi-Qiang Zhang
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| | - Feng Liu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases and Department of Medicinal Chemistry
- College of Pharmaceutical Sciences
- Soochow University
- Suzhou
- People's Republic of China
| |
Collapse
|
31
|
|
32
|
Takesue T, Fujita M, Sugimura T, Akutsu H. A Series of Two Oxidation Reactions of ortho-Alkenylbenzamide with Hypervalent Iodine(III): A Concise Entry into (3R,4R)-4-Hydroxymellein and (3R,4R)-4-Hydroxy-6-methoxymellein. Org Lett 2014; 16:4634-7. [DOI: 10.1021/ol502225p] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Takuya Takesue
- Graduate
School of Material
Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Morifumi Fujita
- Graduate
School of Material
Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Takashi Sugimura
- Graduate
School of Material
Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| | - Hiroki Akutsu
- Graduate
School of Material
Science, University of Hyogo, Kohto, Kamigori, Hyogo 678-1297, Japan
| |
Collapse
|
33
|
Egart B, Czekelius C. Stereoselective bromocyclization of allylated aldoxime ethers. Chem Asian J 2014; 9:2088-91. [PMID: 24956967 DOI: 10.1002/asia.201402234] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Indexed: 11/12/2022]
Abstract
The intramolecular bromoamination of allylated aldoxime ethers leads first to isoxazolidinium salts which then undergo a skeletal rearrangement to form bromo-5,6-dihydro-4H-1,3-oxazines. Aliphatic aldoxime ethers with α-protons undergo multiple brominations before rearrangement.
Collapse
Affiliation(s)
- Boris Egart
- Institute for Chemistry and Biochemistry, Freie Universität Berlin, Takustrasse 3, 14195 Berlin (Germany)
| | | |
Collapse
|
34
|
Li T, Xiang C, Zhang B, Yan J. Hypervalent Iodine Catalyzed Cyclization of Aryl-Substituted Alkanoic Acids. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201300311] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
35
|
Sugimura H, Sato S, Tokudome K, Yamada T. Stereoselective Formation of Tetrahydrofuran Rings via [3 + 2] Annulation: Total Synthesis of Plakortone L. Org Lett 2014; 16:3384-7. [DOI: 10.1021/ol501446w] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hideyuki Sugimura
- Department of Chemistry and
Biological Science, Aoyama Gakuin University, 5-10-1, Fuchinobe, Chuo-ku, Sagamihara-shi 252-5258, Japan
| | - Shougo Sato
- Department of Chemistry and
Biological Science, Aoyama Gakuin University, 5-10-1, Fuchinobe, Chuo-ku, Sagamihara-shi 252-5258, Japan
| | - Kensei Tokudome
- Department of Chemistry and
Biological Science, Aoyama Gakuin University, 5-10-1, Fuchinobe, Chuo-ku, Sagamihara-shi 252-5258, Japan
| | - Takeshi Yamada
- Department of Chemistry and
Biological Science, Aoyama Gakuin University, 5-10-1, Fuchinobe, Chuo-ku, Sagamihara-shi 252-5258, Japan
| |
Collapse
|
36
|
Yoritate M, Meguro T, Matsuo N, Shirokane K, Sato T, Chida N. Two-step Synthesis of Multi-Substituted Amines by Using anN-Methoxy Group as a Reactivity Control Element. Chemistry 2014; 20:8210-6. [DOI: 10.1002/chem.201402231] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Indexed: 11/09/2022]
|
37
|
Stoltz B, Motherwell W. Tetrahedron reports on organic chemistry. Tetrahedron 2013. [DOI: 10.1016/s0040-4020(13)01252-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
38
|
Vas’kevich AI, Tsizorik NM, Staninets VI, Vovk MV. Electrophilic intramolecular cyclization of functional derivatives of unsaturated compounds: IV. Cyclosulfenylation of 5-hexenoic acid amides and nucleophilic cleavage of reaction products. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2013. [DOI: 10.1134/s1070428013080125] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
39
|
Nguyen KH, Tomasi S, Le Roch M, Toupet L, Renault J, Uriac P, Gouault N. Gold-Mediated Synthesis and Functionalization of Chiral Halopyridones. J Org Chem 2013; 78:7809-15. [DOI: 10.1021/jo400827b] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Khanh Hung Nguyen
- Equipe PNSCM, UMR 6226, Université de Rennes 1, 2 avenue du Pr. Léon
Bernard 35043 Rennes Cedex, France
| | - Sophie Tomasi
- Equipe PNSCM, UMR 6226, Université de Rennes 1, 2 avenue du Pr. Léon
Bernard 35043 Rennes Cedex, France
| | - Myriam Le Roch
- Equipe PNSCM, UMR 6226, Université de Rennes 1, 2 avenue du Pr. Léon
Bernard 35043 Rennes Cedex, France
| | - Loïc Toupet
- IPR, UMR 6251, Institut de Physique
de Rennes, Université de Rennes 1, 263 avenue du général Leclerc, 35042 Rennes Cedex,
France
| | - Jacques Renault
- Equipe PNSCM, UMR 6226, Université de Rennes 1, 2 avenue du Pr. Léon
Bernard 35043 Rennes Cedex, France
| | - Philippe Uriac
- Equipe PNSCM, UMR 6226, Université de Rennes 1, 2 avenue du Pr. Léon
Bernard 35043 Rennes Cedex, France
| | - Nicolas Gouault
- Equipe PNSCM, UMR 6226, Université de Rennes 1, 2 avenue du Pr. Léon
Bernard 35043 Rennes Cedex, France
| |
Collapse
|
40
|
Márquez-Segovia I, Baeza A, Otero A, Nájera C. Intramolecular Bromoamination of ConjugatedN-Tosylaminodienes UsingN-Bromosuccinimide. Synthesis of Bromoallyl-SubstitutedN-Heterocycles and Their Applications as Building Blocks. European J Org Chem 2013. [DOI: 10.1002/ejoc.201300444] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
41
|
Liu H, Zheng K, Lu X, Wang X, Hong R. Study on the total synthesis of velbanamine: Chemoselective dioxygenation of alkenes with PIFA via a stop-and-flow strategy. Beilstein J Org Chem 2013; 9:983-90. [PMID: 23766815 PMCID: PMC3678578 DOI: 10.3762/bjoc.9.113] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Accepted: 04/18/2013] [Indexed: 11/23/2022] Open
Abstract
A "stop-and-flow" strategy was developed for the chemoselective dioxygenation of alkenes with a PIFA-initiated cyclization. This method is conceived for the desymmetrization of seco-diene, and a series of substituted 5-hydroxymethyl-γ-lactones were constructed after hydrolysis. This strategy also differentiates terminally substituted alkenes and constitutes a potentially novel synthetic approach for the efficient synthesis toward velbanamine.
Collapse
Affiliation(s)
- Huili Liu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhengjiang 321004, China
| | - Kuan Zheng
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiang Lu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| | - Xiaoxia Wang
- College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua, Zhengjiang 321004, China
| | - Ran Hong
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, China
| |
Collapse
|
42
|
Li Z, Song L, Li C. Silver-catalyzed radical aminofluorination of unactivated alkenes in aqueous media. J Am Chem Soc 2013; 135:4640-3. [PMID: 23506151 DOI: 10.1021/ja400124t] [Citation(s) in RCA: 269] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
We report herein a mild and catalytic intramolecular aminofluorination of unactivated alkenes. Thus, with the catalysis of AgNO3, the reactions of various N-arylpent-4-enamides with Selectfluor reagent in CH2Cl2/H2O led to the efficient synthesis of 5-fluoromethyl-substituted γ-lactams. A mechanism involving silver-catalyzed oxidative generation of amidyl radicals and silver-assisted fluorine atom transfer was proposed.
Collapse
Affiliation(s)
- Zhaodong Li
- Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai 200032, PR China
| | | | | |
Collapse
|
43
|
Tang Y, Lv M, Liu X, Feng H, Liu L. Synthesis of β-Halo-pyrrolidinones through a Tandem Sequence of 5-Endo Halolactamization and C–H Oxidative Functionalization. Org Lett 2013; 15:1382-5. [DOI: 10.1021/ol400208f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Yu Tang
- Tianjin Key Laboratory for Modern Drug Delivery & High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Mingcan Lv
- Tianjin Key Laboratory for Modern Drug Delivery & High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Xiaofan Liu
- Tianjin Key Laboratory for Modern Drug Delivery & High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Hejing Feng
- Tianjin Key Laboratory for Modern Drug Delivery & High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Liwei Liu
- Tianjin Key Laboratory for Modern Drug Delivery & High Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| |
Collapse
|
44
|
Egart B, Lentz D, Czekelius C. Diastereoselective Bromocyclization of O-Allyl-N-tosyl-hydroxylamines. J Org Chem 2013; 78:2490-9. [DOI: 10.1021/jo3026725] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Boris Egart
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195
Berlin, Germany
| | - Dieter Lentz
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195
Berlin, Germany
| | - Constantin Czekelius
- Institut
für Chemie und Biochemie, Freie Universität Berlin, Takustr. 3, 14195
Berlin, Germany
| |
Collapse
|
45
|
Vas’kevich AI, Tsyzoryk NM, Staninets VI, Rusanov EB, Vovk MV. Intramolecular electrophilic cyclization of functional derivatives of unsaturated compounds: III. Reaction of N,4-Diarylbut-3-enamides with arenesulfenyl chlorides. Synthesis of 5-aryl-4-arylsulfanyl-2,3,4,5-tetrahydro-1H-1-benzazepin-2-ones. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2013. [DOI: 10.1134/s107042801212007x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
46
|
Ikeuchi K, Ido S, Yoshimura S, Asakawa T, Inai M, Hamashima Y, Kan T. Catalytic desymmetrization of cyclohexadienes by asymmetric bromolactonization. Org Lett 2012; 14:6016-9. [PMID: 23148461 DOI: 10.1021/ol302908a] [Citation(s) in RCA: 108] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Asymmetric bromolactonization of prochiral cyclohexadiene derivatives with N-bromosuccimide proceeded in the presence of (DHQD)(2)PHAL as a chiral catalyst to afford the corresponding bromolactones with up to 93% ee. This reaction was also applicable to the kinetic resolution of a racemic cyclic ene-carboxylic acid, where the starting material was recovered with high enantioselectivity.
Collapse
Affiliation(s)
- Kazutada Ikeuchi
- School of Pharmaceutical Science, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | | | | | | | | | | | | |
Collapse
|
47
|
Schlemmer C, Andernach L, Schollmeyer D, Straub BF, Opatz T. Iodocyclization of o-Alkynylbenzamides Revisited: Formation of Isobenzofuran-1(3H)-imines and 1H-Isochromen-1-imines Instead of Lactams. J Org Chem 2012; 77:10118-24. [DOI: 10.1021/jo3017378] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Claudine Schlemmer
- Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14, D-55128 Mainz,
Germany
| | - Lars Andernach
- Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14, D-55128 Mainz,
Germany
| | - Dieter Schollmeyer
- Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14, D-55128 Mainz,
Germany
| | - Bernd F. Straub
- Institute of Organic
Chemistry, University of Heidelberg, Im
Neuenheimer Feld 270,
D-69120 Heidelberg, Germany
| | - Till Opatz
- Institute of Organic Chemistry, University of Mainz, Duesbergweg 10-14, D-55128 Mainz,
Germany
| |
Collapse
|
48
|
Abstract
The 1,2-diamine moiety is a ubiquitous structural motif present in a wealth of natural products, including non-proteinogenic amino acids and numerous alkaloids, as well as in pharmaceutical agents, chiral ligands and organic reagents. The biological activity associated with many of these systems and their chemical utility in general has ensured that the development of methods for their preparation is of critical importance. While a wide range of strategies for the preparation of 1,2-diamines have been established, the diamination of alkenes offers a particularly direct and efficient means of accessing these systems. The purpose of this review is to provide an overview of all methods of direct alkene diamination, metal-mediated or otherwise.
Collapse
Affiliation(s)
- Sam de Jong
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607-7061 USA
| | - Daniel G. Nosal
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607-7061 USA
| | - Duncan J. Wardrop
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL, 60607-7061 USA
| |
Collapse
|
49
|
Vas’kevich AI, Tsizorik NM, Rusanov EB, Staninets VI, Vovk MV. Intramolecular electrophilic cyclization of functional derivatives of unsaturated compounds: II. Synthesis and transformation of N-{(2Z)-5-[(arylsulfanyl)methyl]dihydrofuran-2(3H)-ylidene}-N-alkyl(aryl)aminium perchlorates. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2012. [DOI: 10.1134/s1070428012020078] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
50
|
Karila D, Leman L, Dodd RH. Copper-catalyzed iminoiodane-mediated aminolactonization of olefins: application to the synthesis of 5,5-disubstituted butyrolactones. Org Lett 2011; 13:5830-3. [PMID: 21995549 DOI: 10.1021/ol202436a] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A copper(I)-catalyzed reaction of a variety of 4-aryl-pent-4-enoates with nosyliminoiodane generated in situ provides the corresponding 5-aryl-5-nosylamidomethylbutyrolactones. The reaction presumably proceeds via an aziridine intermediate, which could be isolated in one case.
Collapse
Affiliation(s)
- Delphine Karila
- Institut de Chimie des Substances Naturelles, UPR 2301 CNRS, Avenue de la Terrasse, 91198 Gif-sur-Yvette, France
| | | | | |
Collapse
|