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Hess A, Guelen HC, Alandini N, Mourati A, Guersoy YC, Knochel P. Preparation of Polyfunctionalized Aromatic Nitriles from Aryl Oxazolines. Chemistry 2022; 28:e202103700. [PMID: 34766655 PMCID: PMC9300023 DOI: 10.1002/chem.202103700] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Indexed: 12/17/2022]
Abstract
A selective ortho,ortho'-functionalization of readily available aryl oxazolines by two successive magnesiations with sBu2 Mg in toluene followed by trapping reactions with electrophiles, such as (hetero)aryl iodides or bromides, iodine, tosyl cyanide, ethyl cyanoformate or allylic bromides (39 examples, 62-99 % yield) is reported. Treatment of these aryl oxazolines with excess oxalyl chloride and catalytic amounts of DMF (50 °C, 4 h) provided the corresponding nitriles (36 examples, 73-99 % yield). Conversions of these nitriles to valuable heterocycles are reported, and a tentative mechanism is proposed.
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Affiliation(s)
- A. Hess
- Department ChemieLudwig-Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| | - H. C. Guelen
- Department ChemieLudwig-Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| | - N. Alandini
- Department ChemieLudwig-Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| | - A. Mourati
- Department ChemieLudwig-Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| | - Y. C. Guersoy
- Department ChemieLudwig-Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
| | - P. Knochel
- Department ChemieLudwig-Maximilians-Universität MünchenButenandtstrasse 5–13, Haus F81377MünchenGermany
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2
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Trejo-Maldonado M, Elizalde LE, Le Droumaguet B, Grande D. Synthesis of triazole-functionalized diblock copolymers as templates for porous materials. REACT FUNCT POLYM 2021. [DOI: 10.1016/j.reactfunctpolym.2021.104919] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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3
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Abstract
Lankacidins are a class of polyketide natural products isolated from Streptomyces spp. that show promising antimicrobial activity. Owing to their complex molecular architectures and chemical instability, structural assignment and derivatization of lankacidins are challenging tasks. Herein we describe three fully synthetic approaches to lankacidins that enable access to new structural variability within the class. We use these routes to systematically generate stereochemical derivatives of both cyclic and acyclic lankacidins. Additionally, we access a new series of lankacidins bearing a methyl group at the C4 position, a modification intended to increase chemical stability. In the course of this work, we discovered that the reported structures for two natural products of the lankacidin class were incorrect, and we determine the correct structures of 2,18-seco-lankacidinol B and iso-lankacidinol. We also evaluate the ability of several iso- and seco-lankacidins to inhibit the growth of bacteria and to inhibit translation in vitro. This work grants insight into the rich chemical complexity of this class of antibiotics and provides an avenue for further structural derivatization.
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Affiliation(s)
- Lingchao Cai
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Jinagsu Key Lab of Biomass-Based Green Fuels and Chemicals, Nanjing Forestry University, Nanjing, 210037 Jiangsu, China
- Department of Pharmaceutical Chemistry and Cardiovascular Research Institute, University of California at San Francisco, San Francisco, California 94158, United States
| | - Yanmin Yao
- Department of Pharmaceutical Chemistry and Cardiovascular Research Institute, University of California at San Francisco, San Francisco, California 94158, United States
| | - Seul Ki Yeon
- Department of Pharmaceutical Chemistry and Cardiovascular Research Institute, University of California at San Francisco, San Francisco, California 94158, United States
| | - Ian B Seiple
- Department of Pharmaceutical Chemistry and Cardiovascular Research Institute, University of California at San Francisco, San Francisco, California 94158, United States
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4
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Gan L, Jia X, Fang H, Liu G, Huang Z. Dehydrogenation of Primary Alkyl Azides to Nitriles Catalyzed by Pincer Iridium/Ruthenium Complexes. ChemCatChem 2020. [DOI: 10.1002/cctc.202000260] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lan Gan
- Department State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Institution Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Xiangqing Jia
- Department State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Institution Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Huaquan Fang
- Department State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Institution Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Guixia Liu
- Department State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Institution Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
| | - Zheng Huang
- Department State Key Laboratory of Organometallic Chemistry Center for Excellence in Molecular Synthesis Institution Shanghai Institute of Organic ChemistryUniversity of Chinese Academy of Sciences Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 P. R. China
- Chang-Kung Chuang InstituteEast China Normal University 3663 N. Zhongshan Rd. Shanghai 200062 P. R. China
- School of Chemistry and Material Sciences Hangzhou Institute of Advanced StudyUniversity of Chinese Academy of Sciences 1 Sub-lane Xiangshan Hangzhou 310024 P. R. China
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5
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Morisaki K, Morimoto H, Ohshima T. Recent Progress on Catalytic Addition Reactions to N-Unsubstituted Imines. ACS Catal 2020. [DOI: 10.1021/acscatal.0c01212] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kazuhiro Morisaki
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hiroyuki Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
| | - Takashi Ohshima
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan
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6
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Lee JM, Bae DY, Park JY, Jo HY, Lee E, Rhee YH, Park J. Concurrent Formation of N–H Imines and Carbonyl Compounds by Ruthenium-Catalyzed C–C Bond Cleavage of β-Hydroxy Azides. Org Lett 2020; 22:4608-4613. [DOI: 10.1021/acs.orglett.0c01145] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Jeong Min Lee
- Department of Chemistry, POSTECH, (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
| | - Dae Young Bae
- Department of Chemistry, POSTECH, (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
| | - Jin Yong Park
- Department of Chemistry, POSTECH, (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
| | - Hwi Yul Jo
- Department of Chemistry, POSTECH, (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
| | - Eunsung Lee
- Department of Chemistry, POSTECH, (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
| | - Young Ho Rhee
- Department of Chemistry, POSTECH, (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
| | - Jaiwook Park
- Department of Chemistry, POSTECH, (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
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7
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Lenstra DC, Wolf JJ, Mecinović J. Catalytic Staudinger Reduction at Room Temperature. J Org Chem 2019; 84:6536-6545. [PMID: 31050295 DOI: 10.1021/acs.joc.9b00831] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
We report an efficient catalytic Staudinger reduction at room temperature that enables the preparation of a structurally diverse set of amines from azides in excellent yields. The reaction is based on the use of catalytic amounts of triphenylphosphine as a phosphine source and diphenyldisiloxane as a reducing agent. Our catalytic Staudinger reduction exhibits a high chemoselectivity, as exemplified by reduction of azides over other common functionalities, including nitriles, alkenes, alkynes, esters, and ketones.
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Affiliation(s)
- Danny C Lenstra
- Institute for Molecules and Materials , Radboud University , Heyendaalseweg 135 , Nijmegen 6525 AJ , The Netherlands
| | - Joris J Wolf
- Institute for Molecules and Materials , Radboud University , Heyendaalseweg 135 , Nijmegen 6525 AJ , The Netherlands
| | - Jasmin Mecinović
- Institute for Molecules and Materials , Radboud University , Heyendaalseweg 135 , Nijmegen 6525 AJ , The Netherlands.,Department of Physics, Chemistry and Pharmacy , University of Southern Denmark , Campusvej 55 , Odense 5230 , Denmark
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8
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Li Y, Liu CF, Liu XY, Xu YJ, Dong L. Rhodium(iii)-catalyzed tandem reaction: efficient synthesis of dihydrobenzo thiadiazine 1-oxide derivatives. Org Chem Front 2019. [DOI: 10.1039/c9qo00112c] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A tandem annulation reaction triggered by rhodium(iii)-catalyzed C–H bond functionalizations has been well developed for highly efficient synthesis of dihydrobenzo thiadiazine 1-oxide derivatives from free NH-sulfoximine and two-component benzyl azides.
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Affiliation(s)
- Yang Li
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Chen-Fei Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Xin-Yang Liu
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
| | - Yan-Jun Xu
- College of Chemistry and Material Science
- Sichuan Normal University
- Chengdu
- China
| | - Lin Dong
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry
- West China School of Pharmacy
- Sichuan University
- Chengdu 610041
- China
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9
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Affiliation(s)
- Guobing Yan
- Department of Chemistry; Lishui University; Lishui Zhejiang 323000 People's Republic of China
| | - Yan Zhang
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 People's Republic of China
| | - Jianbo Wang
- Beijing National Laboratory of Molecular Sciences (BNLMS) and Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education; College of Chemistry; Peking University; Beijing 100871 People's Republic of China
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10
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Yan Y, Sun S, Cheng J. Palladium-Catalyzed Safe Cyanation of Aryl Iodides with Hexamethylenetetramine. J Org Chem 2017; 82:12888-12891. [DOI: 10.1021/acs.joc.7b02373] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yunjing Yan
- School of Petrochemical Engineering,
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, P. R. China
| | - Song Sun
- School of Petrochemical Engineering,
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, P. R. China
| | - Jiang Cheng
- School of Petrochemical Engineering,
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Changzhou University, Changzhou 213164, P. R. China
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11
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Park JY, Kim Y, Bae DY, Rhee YH, Park J. Ruthenium Bisammine Complex and Its Reaction with Aryl Azides. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00403] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jin Yong Park
- Department of Chemistry, POSTECH (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
| | - Yongjin Kim
- Department of Chemistry, POSTECH (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
| | - Dae Young Bae
- Department of Chemistry, POSTECH (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
| | - Young Ho Rhee
- Department of Chemistry, POSTECH (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
| | - Jaiwook Park
- Department of Chemistry, POSTECH (Pohang University of Science and Technology), Pohang 37673, Republic of Korea
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