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Straub H, Ryabchuk P, Rubina M, Rubin M. Preparation of Chiral Enantioenriched Densely Substituted Cyclopropyl Azoles, Amines, and Ethers via Formal SN2′ Substitution of Bromocylopropanes. Molecules 2022; 27:molecules27207069. [PMID: 36296663 PMCID: PMC9609026 DOI: 10.3390/molecules27207069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 10/15/2022] [Accepted: 10/17/2022] [Indexed: 11/16/2022] Open
Abstract
Enantiomerically enriched cyclopropyl ethers, amines, and cyclopropylazole derivatives possessing three stereogenic carbon atoms in a small cycle are obtained via the diastereoselective, formal nucleophilic substitution of chiral, non-racemic bromocyclopropanes. The key feature of this methodology is the utilization of the chiral center of the cyclopropene intermediate, which governs the configuration of the two adjacent stereocenters that are successively installed via 1,4-addition/epimerization sequence.
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Affiliation(s)
- Hillary Straub
- Department of Chemistry, University of Kansas, Lawrence, KS 66045, USA
| | - Pavel Ryabchuk
- Department of Chemistry, University of Kansas, Lawrence, KS 66045, USA
| | - Marina Rubina
- Department of Chemistry, University of Kansas, Lawrence, KS 66045, USA
- Department of Chemistry, North Caucasus Federal University, 355009 Stavropol, Russia
| | - Michael Rubin
- Department of Chemistry, University of Kansas, Lawrence, KS 66045, USA
- Department of Chemistry, North Caucasus Federal University, 355009 Stavropol, Russia
- Correspondence:
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2
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Queen AE, Selmani A, Schoenebeck F. Hydrogermylation of Alkenes via Organophotoredox-Initiated HAT Catalysis. Org Lett 2021; 24:406-409. [PMID: 34914403 DOI: 10.1021/acs.orglett.1c04088] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
This Letter discloses the straightforward hydrogermylation of olefins under visible-light organophotoredox-initiated HAT catalysis conditions to yield primary and secondary alkyl germanes at room temperature. The protocol is operationally simple, metal-free, and tolerant of various functional groups. The synthesized alkyl germanes proved to be highly robust toward acidic, basic, or oxidizing conditions and chemical transformations of Csp2-GeEt3 or Csp2-BPin functionalities in their presence.
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Affiliation(s)
- Adele E Queen
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Aymane Selmani
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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3
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Prasad Raiguru B, Nayak S, Ranjan Mishra D, Das T, Mohapatra S, Priyadarsini Mishra N. Synthetic Applications of Cyclopropene and Cyclopropenone: Recent Progress and Developments. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000193] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
| | - Sabita Nayak
- Department of ChemistryRavenshaw University Cuttack Odisha India
| | | | - Tapaswini Das
- Department of ChemistryRavenshaw University Cuttack Odisha India
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Maslivetc V, Barrett C, Aksenov NA, Rubina M, Rubin M. Intramolecular nucleophilic addition of carbanions generated from N-benzylamides to cyclopropenes. Org Biomol Chem 2018; 16:285-294. [PMID: 29242861 PMCID: PMC5755969 DOI: 10.1039/c7ob02068f] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An unusual reaction is described, involving a formal intramolecular nucleophilic substitution of bromocyclopropanes with nitrogen ylides generated in situ from N-benzyl carboxamides. It is shown that this reaction involves cyclopropene intermediates and allows for the facile and expeditious preparation of 3-azabicyclo[3.1.0]hexan-2-one scaffolds.
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Affiliation(s)
- Vladimir Maslivetc
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA.
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5
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Yamanushkin P, Lu-Diaz M, Edwards A, Aksenov NA, Rubina M, Rubin M. Directed nucleophilic addition of phenoxides to cyclopropenes. Org Biomol Chem 2017; 15:8153-8165. [PMID: 28920624 DOI: 10.1039/c7ob01785e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The alkali metal-templated addition of aryloxides across the double bond of non-conjugated cyclopropenes is described. High cis-selectivity is achieved through a directing effect of a strategically positioned carboxamide functionality.
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Affiliation(s)
- Pavel Yamanushkin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA.
| | - Michael Lu-Diaz
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA. and Department of Chemistry, University of Puerto Rico at Mayaguez, Q-153, 259 Alfonso Valdez Blvd, Mayagüez, 00681, Puerto Rico
| | - Andrew Edwards
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA.
| | - Nicolai A Aksenov
- Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation
| | - Marina Rubina
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA. and Peoples' Friendship University of Russia, 6 Miklukho-Maklaya St., Moscow 117198, Russian Federation
| | - Michael Rubin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA. and Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation
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6
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Ryabchuk P, Matheny JP, Rubina M, Rubin M. Templated Assembly of Chiral Medium-Sized Cyclic Ethers via 8-endo-trig Nucleophilic Cyclization of Cyclopropenes. Org Lett 2016; 18:6272-6275. [PMID: 27978680 DOI: 10.1021/acs.orglett.6b03068] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pavel Ryabchuk
- Department
of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein Straße 29a, Rostock 18059, Germany
| | - Jonathon P. Matheny
- Department
of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States
| | - Marina Rubina
- Department
of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States
| | - Michael Rubin
- Department
of Chemistry, University of Kansas, 1251 Wescoe Hall Drive, Lawrence, Kansas 66045, United States
- Department
of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russian Federation
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7
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Affiliation(s)
- Igor V. Trushkov
- Department of Chemistry; M. V. Lomonosov Moscow State University; Leninskie Gory 1-3 Moscow 119991 Russia
- Federal Research Center of Pediatric Hematology, Oncology and Immunology n.a. Dmitry Rogachev; Samory Mashela 1 Moscow 117997 Russia
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8
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Alnasleh BK, Rubina M, Rubin M. Templated assembly of medium cyclic ethers via exo-trig nucleophilic cyclization of cyclopropenes. Chem Commun (Camb) 2016; 52:7494-6. [PMID: 27210442 DOI: 10.1039/c6cc02178f] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A novel method for the assembly of medium heterocycles via an intramolecular nucleophilic addition to cyclopropenes is described. The exo-trig nucleophilic cyclizations were shown to proceed very efficiently and in a highly diastereoselective fashion affording cis-fused bicyclic products possessing 7 to 10-membered medium rings; starting from a diastereomeric mixtures of bromocyclopropanes.
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Affiliation(s)
| | - Marina Rubina
- Department of Chemistry
- University of Kansas
- Lawrence
- USA
| | - Michael Rubin
- Department of Chemistry
- University of Kansas
- Lawrence
- USA
- Department of Chemistry
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9
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Edwards A, Bennin T, Rubina M, Rubin M. Synthesis of 1,5-Dioxocanes via the Two-Fold C-O Bond Forming Nucleophilic 4+4-Cyclodimerization of Cycloprop-2-en-1-ylmethanols. RSC Adv 2015; 5:71849-71853. [PMID: 26594355 DOI: 10.1039/c5ra14077c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
An efficient [4+4] cyclodimerization of cyclopropenemethanols operating via a two-fold strain release-driven addition of alkoxides across the double bond of cyclopropenes was investigated. This chemo- and diastereoselective transformation provided previously unknown 2,7-dioxatricyclo[7.1.0.04,6]decane scaffolds.
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Affiliation(s)
- Andrew Edwards
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence KS 66045-7582, USA
| | - Trevor Bennin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence KS 66045-7582, USA ; Department of Chemistry, Northland College, 1411 Ellis Avenue, Ashland, Wisconsin 54806-3999, USA
| | - Marina Rubina
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence KS 66045-7582, USA
| | - Michael Rubin
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence KS 66045-7582, USA ; Department of Chemistry, North Caucasus Federal University, 1a Pushkin St., Stavropol 355009, Russia
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10
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Maslivetc VA, Rubina M, Rubin M. One-pot synthesis of GABA amides via the nucleophilic addition of amines to 3,3-disubstituted cyclopropenes. Org Biomol Chem 2015; 13:8993-5. [PMID: 26243009 DOI: 10.1039/c5ob01462j] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
A one-pot synthesis of various GABA amides has been demostrated, employing the nucleophilic addition of primary and secondary amines across the double bond of cyclopropene-3-carboxamides, followed by ring-opening of the resulting donor-acceptor cyclopropanes and subsequent in situ reduction of enamine (imine) intermediates.
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Affiliation(s)
- Vladimir A Maslivetc
- Department of Chemistry, University of Kansas, 1251 Wescoe Hall Dr., Lawrence, KS 66045-7582, USA.
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11
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Xu H, Hu JL, Wang L, Liao S, Tang Y. Asymmetric Annulation of Donor–Acceptor Cyclopropanes with Dienes. J Am Chem Soc 2015; 137:8006-9. [DOI: 10.1021/jacs.5b04429] [Citation(s) in RCA: 165] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hao Xu
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Jiang-Lin Hu
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Lijia Wang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Saihu Liao
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
| | - Yong Tang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Lu, Shanghai 200032, China
- Collaborative Innovation
Center of Chemical Science and Engineering, Tianjin, China
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12
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Zhang M, Guo J, Gong Y. Highly Regioselective Cascade Formal Nucleophilic Substitution and Aldol Condensation of 2-Aroyl-1-chlorocyclopropanecarboxylic Esters. European J Org Chem 2014. [DOI: 10.1002/ejoc.201301866] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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13
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Zhang M, Luo F, Gong Y. Stereoselective Cascade Formal Nucleophilic Substitution and Mannich Reaction of Ethyl 2-Aroyl-1-chlorocyclopropanecarboxylates. J Org Chem 2014; 79:1335-43. [DOI: 10.1021/jo402739f] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Min Zhang
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, People’s Republic of China
| | - Fan Luo
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, People’s Republic of China
| | - Yuefa Gong
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, People’s Republic of China
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