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Guo Q, Lai Z, Tian Z, Tang R, Ding T, Jiang X. Organocatalytic Enantioselective Chloroiminocyclization for the Synthesis of Imidazoline. Org Lett 2024; 26:5592-5596. [PMID: 38914478 DOI: 10.1021/acs.orglett.4c02057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Imidazoline is an important scaffold in organic synthesis and a pharmacophore in medicinal chemistry. We apply basic imines as nucleophiles for the catalytic asymmetric chloroiminocyclization to furnish tetrasubstituted stereocenter-containing imidazolines in excellent yields and enantioselectivities. The reaction can be conducted in the polar solvent acetonitrile under concentrated reaction conditions.
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Affiliation(s)
- Qifeng Guo
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Zhitao Lai
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Zeng Tian
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Ran Tang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Tengbo Ding
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University College of Pharmacy, Guangzhou 510632, China
| | - Xiaojian Jiang
- State Key Laboratory of Bioactive Molecules and Druggability Assessment, and International Cooperative Laboratory of Traditional Chinese Medicine Modernization and Innovative Drug Development of Chinese Ministry of Education (MOE), Jinan University College of Pharmacy, Guangzhou 510632, China
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2
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De S, Dan AK, Sahu R, Das D. Asymmetric Synthesis of Halocyclized Products by Using Various Catalysts: A State‐of‐the‐Art Review. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200817] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Soumik De
- NIT Silchar: National Institute of Technology Silchar Department of Chemistry QQ5R+3WM, NIT Road, Fakiratilla 788010 Silchar INDIA
| | - Aritra Kumar Dan
- KIIT School of Biotechnology Department of Biotechnology School Of Biotechnology, KIIT ,Campus 11, Patia 751024 Bhubaneswar INDIA
| | - Raghaba Sahu
- Seoul National University College of Pharmacy College of Pharmacy 1 Gwanak-ro, Gwanak-gu 08826 KOREA, REPUBLIC OF
| | - Debadutta Das
- RITE: Radhakrishna Institute of Technology and Engineering Chemistry Barunai Temple Rd, IDCO-01, IDCO Industrial Estate, Barunei 752057 Khordha INDIA
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3
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Broggini G, Loro C, Oble J, Foschi F, Papis M, Beccalli EM, Giofrè S, Poli G. Acid-Mediated Decarboxylative C–H Coupling between Arenes and O-Allyl Carbamates. Org Chem Front 2022. [DOI: 10.1039/d2qo00114d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Treatment of O-allyl N-tosyl carbamates with aromatic compounds in the presence of Cu(OTf)2 or TMSOTf as promoters, affords N-substituted 1-arylpropan-2-amines, 1,2-diarylpropanes, 1,1-diarylpropanes, or indanes, depending on the nature of the...
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4
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Ren LQ, He YS, Yang YT, Li ZF, Xue ZY, Li QH, Liu TL. Chlorocyclization/cycloreversion of allylic alcohols to vinyl chlorides. Org Chem Front 2021. [DOI: 10.1039/d1qo01218e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unprecedented chlorination of allylic alcohols: a simple mix-and-go procedure for the cyclization/cycloreversion of secondary and tertiary allylic alcohols with chloronium ions under mild conditions and practical access to remote carbonyl vinyl chlorides.
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Affiliation(s)
- Li-Qing Ren
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Yu-Shuai He
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Yu-Ting Yang
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Zhao-Feng Li
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Zhi-Yong Xue
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing & Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan 430073, China
| | - Qing-Hua Li
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
| | - Tang-Lin Liu
- School of Chemistry and Chemical Engineering, Southwest University, No. 2, Tiansheng Road, Beibei, Chongqing, 400715, China
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Struble TJ, Lankswert HM, Pink M, Johnston JN. Enantioselective Organocatalytic Amine-Isocyanate Capture-Cyclization: Regioselective Alkene Iodoamination for the Synthesis of Chiral Cyclic Ureas. ACS Catal 2018; 8:11926-11931. [PMID: 31131150 DOI: 10.1021/acscatal.8b03708] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ureas of chiral diamines are prominent features of therapeutics, chiral auxiliaries, and intermediates in complex molecule synthesis. Although many methods for diamine synthesis are available, metal-free enantioselective alkene functionalizations to make protected 1,2- and 1,3-diamines from simple achiral starting materials are rare, and a single reagent that accesses a cross-section of each congener with high enantiomeric excess is not available. We describe a method to synthesize enantioenriched cyclic 5- and 6-membered ureas from allylic amines and an isocyanate using a C2-symmetric BisAmidine (BAM) catalyst that delivers N-selectivity from an ambident sulfonyl imide intermediate, overcoming electronic and steric deactivation at nitrogen. The geometry of 1,2-disubstituted alkenes is correlated to 5-exo and 6-endo cyclizations without altering alkene face selectivity, which is unexpectedly opposite that observed with O-nucleophiles. Straightforward product manipulations to diamine and imidazolidinone derivatives are underscored by the synthesis of an NK1 antagonist.
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Affiliation(s)
- Thomas J. Struble
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235-1822, United States
| | - Hannah M. Lankswert
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235-1822, United States
| | - Maren Pink
- Indiana University Molecular Structure Center, Bloomington, Indiana 47405, United States
| | - Jeffrey N. Johnston
- Department of Chemistry and Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee 37235-1822, United States
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Horibe T, Ohmura S, Ishihara K. Selenium-Iodine Cooperative Catalyst for Chlorocyclization of Tryptamine Derivatives. Org Lett 2017; 19:5525-5528. [PMID: 28956932 DOI: 10.1021/acs.orglett.7b02613] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chlorocyclization of tryptamine derivatives has been developed with the use of a diphenyl diselenide-iodine cooperative catalyst. Various tryptamine derivatives can be smoothly converted to the corresponding C3a-chlorohexahydropyrrolo[2,3-b]indoles. Additionally, we demonstrate the formal total syntheses of (-)-psychotriasine and (-)-acetylardeemin by introducing nucleophiles to the C3a position of the products.
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Affiliation(s)
- Takahiro Horibe
- Graduate School of Engineering, Nagoya University , B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Shuhei Ohmura
- Graduate School of Engineering, Nagoya University , B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603, Japan
| | - Kazuaki Ishihara
- Graduate School of Engineering, Nagoya University , B2-3(611), Furo-cho, Chikusa, Nagoya 464-8603, Japan
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