1
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Liu TT, Cui YS. One-Pot Access to Boron-Doped Fused Heterocycles via Domino Cyclization of Bis-Diazidoboranes with Isonitrile. Chemistry 2023; 29:e202302683. [PMID: 37753737 DOI: 10.1002/chem.202302683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 09/28/2023]
Abstract
Boron-doped fused heterocycles have shown great potential in the field of functional materials. This study reports on the synthesis of a new class of bis-diazidoboranes and the discovery of their cycloaddition reaction with isonitriles. Triply fused boron-doped heterocyclic compounds were constructed in a one-pot process through a domino cycloaddition, providing an effective route for constructing complex boron-doped heterocyclic systems.
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Affiliation(s)
- Tong-Tong Liu
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Yun-Shu Cui
- Department of Chemistry, Fudan University, Shanghai, 200438, China
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2
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Zhu L, Kinjo R. Reactions of main group compounds with azides forming organic nitrogen-containing species. Chem Soc Rev 2023; 52:5563-5606. [PMID: 37519098 DOI: 10.1039/d3cs00290j] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/01/2023]
Abstract
Since the seminal discovery of phenyl azide by Grieß in 1864, a variety of organic azides (R-N3) have been developed and extensively studied. The amenability of azides to a number of reactions has expanded their utility as building blocks not only in organic synthesis but also in bioorthogonal chemistry and materials science. Over the decades, it has been demonstrated that the reactions of main group compounds with azides lead to diverse N-containing main group molecules. In view of the pronounced progress in this area, this review summarizes the reactions of main group compounds with azides, emphatically introducing their reaction patterns and mechanisms. The reactions of forming inorganic nitrogen species are not included in this review.
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Affiliation(s)
- Lizhao Zhu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Nanyang Link 21, Singapore 637371, Singapore.
| | - Rei Kinjo
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Nanyang Link 21, Singapore 637371, Singapore.
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3
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Vogler D, Schöner M, Kaifer E, Himmel H. Bistriazoles Connected Through a B-B Bridge, Synthesized by Highly Selective Dipolar Cycloaddition Reactions of a Diazido-diborane(4). Chemistry 2022; 28:e202201389. [PMID: 35703332 PMCID: PMC9544427 DOI: 10.1002/chem.202201389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Indexed: 11/11/2022]
Abstract
In this work we report the first cycloaddition reactions between a diazido diborane(4) and terminal alkynes, providing unique access to bis-1,2,3-triazoles connected by a B-B bridge. The catalyst-free reactions are highly selective, yielding exclusively the thermodynamically disfavored bis-1,4-triazoles. The reactions are enabled by the high thermal stability of the diazido-diborane [B(hpp)(N3 )]2 (hpp=1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-α]pyrimidinate). Due to the tetra-coordinate boron atoms in this reagent, the reactions are tolerant with respect to the introduction of Lewis-basic groups at the alkyne. The scope and limitations of the new reactions are discussed.
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Affiliation(s)
- Daniel Vogler
- Anorganisch-Chemisches InstitutRuprecht-Karls Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Maximilian Schöner
- Anorganisch-Chemisches InstitutRuprecht-Karls Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Elisabeth Kaifer
- Anorganisch-Chemisches InstitutRuprecht-Karls Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Hans‐Jörg Himmel
- Anorganisch-Chemisches InstitutRuprecht-Karls Universität HeidelbergIm Neuenheimer Feld 27069120HeidelbergGermany
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4
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Prieschl D, Bélanger-Chabot G, Guo X, Dietz M, Müller M, Krummenacher I, Lin Z, Braunschweig H. Synthesis of Complex Boron-Nitrogen Heterocycles Comprising Borylated Triazenes and Tetrazenes Under Mild Conditions. J Am Chem Soc 2020; 142:1065-1076. [PMID: 31830413 DOI: 10.1021/jacs.9b12336] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reactions of organic azides with diaryl(dihalo)diboranes(4) were explored, resulting in the observation of a number of surprising reactivity patterns. The reaction of phenyl azide with 1,2-diaryl-1,2-dihalodiboranes(4) resulted in the formation of five-membered rings comprising diboryl-triazenes with retention of the boron-boron bond, while the reaction of the peculiar 1,1-di(9-anthryl)-2,2-difluorodiborane(4) with phenyl azide yielded a six-membered ring bearing a diboryl-triazene, whereby the B-B bond was ruptured by the insertion of an arylnitrene-like reactive intermediate. Both types of heterocycles feature unprecedented connectivity patterns and are very rare examples of boryl triazenes beyond the more common 1,2,3-triazolatoboranes. They are also the product of a unique type of aryl migration from a boron center to the phenyl azide γ-nitrogen center. Lastly, the substitution of 1,2-diaryl-1,2-dihalodiboranes(4) with azide groups, using trimethylsilyl azide as the transfer reagent, yielded boryl-tetrazaboroles and diboryldiazadiboretidines (as side-products), invoking the intermediacy of the first N-boryl-substituted iminoboranes, which are BN isosteres of monoborylated alkynes. The synthetic results are complemented with mechanistic proposals derived from quantum-chemical calculations.
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Affiliation(s)
- Dominic Prieschl
- Institute for Inorganic Chemistry , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany.,Institute for Sustainable Chemistry & Catalysis with Boron , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany
| | - Guillaume Bélanger-Chabot
- Institute for Inorganic Chemistry , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany.,Institute for Sustainable Chemistry & Catalysis with Boron , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany
| | - Xueying Guo
- Department of Chemistry , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , Hong Kong , China
| | - Maximilian Dietz
- Institute for Inorganic Chemistry , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany.,Institute for Sustainable Chemistry & Catalysis with Boron , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany
| | - Marcel Müller
- Institute for Inorganic Chemistry , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany.,Institute for Sustainable Chemistry & Catalysis with Boron , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany
| | - Ivo Krummenacher
- Institute for Inorganic Chemistry , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany.,Institute for Sustainable Chemistry & Catalysis with Boron , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany
| | - Zhenyang Lin
- Department of Chemistry , The Hong Kong University of Science and Technology , Clear Water Bay , Kowloon , Hong Kong , China
| | - Holger Braunschweig
- Institute for Inorganic Chemistry , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany.,Institute for Sustainable Chemistry & Catalysis with Boron , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany
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5
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Uhl W, Martinewski K, Bruchhage JS, Hepp A, Layh M, Dielmann F, Mehlmann P. Cooperative activation of azides by an Al/N-based active Lewis pair – unexpected insertion of nitrogen atoms into C–Si bonds and formation of AlCN3 heterocycles. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2019. [DOI: 10.1515/znb-2019-0138] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The active Lewis pairs (ALPs) 2,6-Me2H8C5N–C(H) = C(SiMe3)–AlR2 (1a: R =
t
Bu, 1b, R =
i
Bu) have strained AlC2N heterocycles and relatively weak Al–N bonds. They react readily with a series of organic azides R′N3 [R′ = Ph, CH2C6H4(4-
t
Bu),
t
Bu, SiMe3, CH2Ph] by cleavage of the heterocycles and addition of the azides with their α-N atoms to the Al atom. The Al–N interactions result in an activation of the azide groups which insert into the C–Si bonds of the vinyl groups with their terminal γ-N atoms. Compounds with approximately planar five-membered AlCN3 heterocycles and intact N3 groups are formed in highly selective reactions.
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Affiliation(s)
- Werner Uhl
- Institut für Anorganische und Analytische Chemie der Universität Münster , Corrensstraße 30 , 48149 Münster , Germany
| | - Katja Martinewski
- Institut für Anorganische und Analytische Chemie der Universität Münster , Corrensstraße 30 , 48149 Münster , Germany
| | - Julia Silissa Bruchhage
- Institut für Anorganische und Analytische Chemie der Universität Münster , Corrensstraße 30 , 48149 Münster , Germany
| | - Alexander Hepp
- Institut für Anorganische und Analytische Chemie der Universität Münster , Corrensstraße 30 , 48149 Münster , Germany
| | - Marcus Layh
- Institut für Anorganische und Analytische Chemie der Universität Münster , Corrensstraße 30 , 48149 Münster , Germany
| | - Fabian Dielmann
- Institut für Anorganische und Analytische Chemie der Universität Münster , Corrensstraße 30 , 48149 Münster , Germany
| | - Paul Mehlmann
- Institut für Anorganische und Analytische Chemie der Universität Münster , Corrensstraße 30 , 48149 Münster , Germany
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6
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Bera M, Sahoo SK, Maiti D. Room-Temperature meta-Functionalization: Pd(II)-Catalyzed Synthesis of 1,3,5-Trialkenyl Arene and meta-Hydroxylated Olefin. ACS Catal 2016. [DOI: 10.1021/acscatal.6b00675] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Milan Bera
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Santosh K. Sahoo
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department
of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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7
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Singh MS, Chowdhury S, Koley S. Progress in 1,3-dipolar cycloadditions in the recent decade: an update to strategic development towards the arsenal of organic synthesis. Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.02.031] [Citation(s) in RCA: 142] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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8
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Fan L, Stephan DW. PNPCB heterocycles via thermal and Lewis acid catalyzed trans-hydroborations. Dalton Trans 2016; 45:9229-34. [DOI: 10.1039/c6dt01659f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of iPr2P(BH3)N3 and R2PCCR affords compounds of the form R2P(CCR)NP(BH3)iPr2 which undergo subsequent thermally induced or Lewis acid catalyzed intramolecular hydroboration to give PNPCB heterocycles R2P(CCHPh)NP(BH2)iPr2.
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Affiliation(s)
- Louie Fan
- Department of Chemistry
- University of Toronto
- Toronto
- USA
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9
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Patra T, Watile R, Agasti S, Naveen T, Maiti D. Sequential meta-C–H olefination of synthetically versatile benzyl silanes: effective synthesis of meta-olefinated toluene, benzaldehyde and benzyl alcohols. Chem Commun (Camb) 2016; 52:2027-30. [DOI: 10.1039/c5cc09446a] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Template assisted sequential meta-C–H bis-olefination was achieved for synthetically versatile benzyl silanes with post synthetic modifications towards different useful functionalities.
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Affiliation(s)
- Tuhin Patra
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Rahul Watile
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Soumitra Agasti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Togati Naveen
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
| | - Debabrata Maiti
- Department of Chemistry
- Indian Institute of Technology Bombay
- Powai
- India
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10
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Bag S, Patra T, Modak A, Deb A, Maity S, Dutta U, Dey A, Kancherla R, Maji A, Hazra A, Bera M, Maiti D. Remote para-C-H Functionalization of Arenes by a D-Shaped Biphenyl Template-Based Assembly. J Am Chem Soc 2015; 137:11888-91. [PMID: 26361337 DOI: 10.1021/jacs.5b06793] [Citation(s) in RCA: 259] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Site-selective C-H functionalization has emerged as an efficient tool in simplifying the synthesis of complex molecules. Most often, directing group (DG)-assisted metallacycle formation serves as an efficient strategy to ensure promising regioselectivity. A wide variety of ortho- and meta-C-H functionalizations stand as examples in this regard. Yet despite this significant progress, DG-assisted selective para-C-H functionalization in arenes has remained unexplored, mainly because it involves the formation of a geometrically constrained metallacyclic transition state. Here we report an easily recyclable, novel Si-containing biphenyl-based template that directs efficient functionalization of the distal p-C-H bond of toluene by forming a D-shaped assembly. This DG allows the required flexibility to support the formation of an oversized pre-transition state. By overcoming electronic and steric bias, para-olefination and acetoxylation were successfully performed while undermining o- and m-C-H activation. The applicability of this D-shaped biphenyl template-based strategy is demonstrated by synthesizing various complex molecules.
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Affiliation(s)
- Sukdev Bag
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Tuhin Patra
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Atanu Modak
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Arghya Deb
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Soham Maity
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Uttam Dutta
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Aniruddha Dey
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Rajesh Kancherla
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Arun Maji
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Avijit Hazra
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Milan Bera
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay , Powai, Mumbai 400076, India
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11
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Flagstad T, Petersen MT, Nielsen TE. A Four-Component Reaction for the Synthesis of Dioxadiazaborocines. Angew Chem Int Ed Engl 2015; 54:8395-7. [PMID: 26068978 DOI: 10.1002/anie.201502989] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 04/17/2015] [Indexed: 11/05/2022]
Abstract
A four-component reaction for the synthesis of heterocyclic boronates is reported. Readily available hydrazides, α-hydroxy aldehydes, and two orthogonally reactive boronic acids are combined in a single step to give structurally distinct bicyclic boronates, termed dioxadiazaborocines (DODA borocines). In this remarkable process, one boronic acid reacts as a carbon nucleophile and the other as a boron electrophile to provide enantio- and diastereomerically pure heterocyclic boronates with multiple stereocenters in high yields.
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Affiliation(s)
- Thomas Flagstad
- Department of Chemistry, Technical University of Denmark, 2800 Kgs. Lyngby (Denmark)
| | - Mette T Petersen
- Department of Chemistry, Technical University of Denmark, 2800 Kgs. Lyngby (Denmark)
| | - Thomas E Nielsen
- Department of Chemistry, Technical University of Denmark, 2800 Kgs. Lyngby (Denmark). .,Singapore Centre on Environmental Life Sciences Engineering, Nanyang Technological University, Singapore 637551 (Singapore).
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12
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13
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Melen RL, Stephan DW. Cycloaddition reactions of (C6F5)2BN3 with dialkyl acetylenedicarboxylates. Dalton Trans 2015; 44:5045-8. [PMID: 25687829 DOI: 10.1039/c5dt00316d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The 1,3-dipolar cycloaddition reactions of the electron deficient boron azide, (C6F5)2BN3 (1) with the electron-poor acetylenes RO2CC≡CCO2R (R = Me, Et) afforded the new mono- and bis-1,2,3-triazole derivatives and .
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Affiliation(s)
- Rebecca L Melen
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6.
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