☆ 4.7 Article

Metal-free homo-/cross-anion-cation coupling of cyclic diaryl λ3-bromanes

ORGANIC CHEMISTRY FRONTIERS (2023)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Article Chemistry, Multidisciplinary

Orbital analysis of bonding in diarylhalonium salts and relevance to periodic trends in structure and reactivity

Shubhendu S. Karandikar et al.

Summary: Diarylhalonium compounds play important roles as reagents and catalysts in organic synthesis, with the key reactivity of the three center, four electron bond requiring refinement for broader applicability. The combination of Density Functional Theory, Natural Bond Orbital Theory, and X-ray structure data can provide insights into the bonding and structure of these compounds.

CHEMICAL SCIENCE (2022)

添加到收藏夹

Article Chemistry, Organic

Decarbonylative/decarboxylative [4+2] annulation of phthalic anhydrides and cyclic iodoniums towards triphenylenes

Lingyu Huang et al.

Summary: A palladium-catalyzed decarbonylative/decarboxylative [4 + 2] annulation of phthalic anhydrides with cyclic diaryliodonium salts to synthesize triphenylenes has been developed. The reaction shows broad substrate scope with a high yield of up to 99%, and it provides an efficient and fast way to access functionalized triphenylenes in only one hour.

ORGANIC & BIOMOLECULAR CHEMISTRY (2022)

添加到收藏夹

Article Chemistry, Organic

Cyclic Diaryl λ3-Bromanes: A Rapid Access to Molecular Complexity via Cycloaddition Reactions

Matteo Lanzi et al.

Summary: This study reported the synthesis of dissymetric 2,3,2',3',4-substituted biaryls via pericyclic reactions of cyclic diaryl lambda(3)-bromanes. The method provides functional group tolerance and atom economy, allowing access to molecular complexity in a single reaction step. Continuous flow protocol has been designed for scale-up, while postfunctionalizations have been developed leveraging the residual Br-atom.

ORGANIC LETTERS (2021)

添加到收藏夹

Article Chemistry, Physical

Chiral Hypervalent Bromine(III) (Bromonium Salt): Hydrogen- and Halogen-Bonding Bifunctional Asymmetric Catalysis by Diaryl-λ3-bromanes

Yasushi Yoshida et al.

Summary: This study reports the design and development of chiral cyclic diarylbromonium salts, enabling highly selective Lewis acid XB catalysis with products reaching up to 96% ee.

ACS CATALYSIS (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Cyclic Diaryl λ3-Bromanes as Original Aryne Precursors

Matteo Lanzi et al.

Summary: A general, safe, and high-yielding strategy to access cyclic diaryl lambda(3)-bromanes is reported in this study, featuring reactivity complementary to that of lambda(3)-iodanes to generate arynes under mild reaction conditions in the presence of a weak base. Mechanistic studies unambiguously support the aryne generation mechanism.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Electrochemical Generation of Hypervalent Bromine(III) Compounds

Igors Sokolovs et al.

Summary: In contrast to hypervalent iodine(III) compounds, little research has been done on isoelectronic bromine(III) compounds. A new method for preparing chelation-stabilized lambda(3)-bromanes was presented in this study, demonstrating their synthetic utility in oxidative reactions. The reactivity of stable bromine(III) species can be unlocked by the addition of a Lewis or a Bronsted acid, leading to the formation of C-C, C-N, and C-O bonds.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Benchtop-Stable Hypervalent Bromine(III) Compounds: Versatile Strategy and Platform for Air- and Moisture-Stable λ3-Bromanes

Kazunori Miyamoto et al.

Summary: The study successfully synthesized air/moisture-stable 3-bromanes using a BBX strategy for the first time. X-ray crystallography and spectroscopic analysis showed that the bromine(III) center is effectively stabilized through intramolecular hypervalent bonding.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2021)

添加到收藏夹

Article Chemistry, Organic

Divergent synthesis of unsymmetrical azobenzenes via Cu-catalyzed C-N coupling

Yuzhou Wang et al.

Summary: An efficient metal-catalyzed tandem reaction was developed for the synthesis of unsymmetrical azobenzenes, eliminating the need for extra deprotection steps. Additionally, a novel three-component reaction process was discovered to assemble azobenzenes in good yields.

ORGANIC CHEMISTRY FRONTIERS (2021)

添加到收藏夹

Article Chemistry, Multidisciplinary

Bromonium salts: diaryl-λ3-bromanes as halogen-bonding organocatalysts

Yasushi Yoshida et al.

Summary: Novel, stable bromonium salts have been synthesized and utilized for the first time as catalysts in the Michael reaction, achieving excellent product yield (up to 96%).

CHEMICAL COMMUNICATIONS (2021)

添加到收藏夹

Article Chemistry, Organic

Cu-Catalyzed tandemN-arylation of phthalhydrazides with cyclic iodoniums to yield dihydrobenzo[c]cinnolines

Rongrong Xie et al.

ORGANIC & BIOMOLECULAR CHEMISTRY (2020)

添加到收藏夹

Article Chemistry, Multidisciplinary

Competing Pathways in O-Arylations with Diaryliodonium Salts: Mechanistic Insights

Elin Stridfeldt et al.

CHEMISTRY-A EUROPEAN JOURNAL (2017)

添加到收藏夹

Review Chemistry, Multidisciplinary

Advances in Synthetic Applications of Hypervalent Iodine Compounds

Akira Yoshimura et al.

CHEMICAL REVIEWS (2016)

添加到收藏夹

Article Chemistry, Organic

Metal-free C-H amination of unactivated hydrocarbons with sulfonylimino-λ3-bromanes generated in situ from (diacetoxybromo)benzene

Kazunori Miyamoto et al.

ORGANIC & BIOMOLECULAR CHEMISTRY (2015)

添加到收藏夹

Article Chemistry, Multidisciplinary

Mechanism of the Reactions of Alcohols with o-Benzynes

Patrick H. Willoughby et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2014)

添加到收藏夹

Article Multidisciplinary Sciences

Highly Regioselective Amination of Unactivated Alkanes by Hypervalent Sulfonylimino-λ3-Bromane

Masahito Ochiai et al.

SCIENCE (2011)

添加到收藏夹

Article Chemistry, Multidisciplinary

Hypervalent λ3-Bromane Strategy for Baeyer-Villiger Oxidation: Selective Transformation of Primary Aliphatic and Aromatic Aldehydes to Formates, Which is Missing in the Classical Baeyer-Villiger Oxidation

Masahito Ochiai et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2010)

添加到收藏夹

Article Chemistry, Multidisciplinary

Hypervalent Bromine Compounds: Smaller, More Reactive Analogues of Hypervalent Iodine Compounds

Umar Farooq et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2009)

添加到收藏夹

Review Chemistry, Multidisciplinary

Diaryliodonium Salts: A Journey from Obscurity to Fame

Eleanor A. Merritt et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2009)

添加到收藏夹

Article Chemistry, Multidisciplinary

Difluoro-λ3-bromane-Induced Hofmann Rearrangement of Sulfonamides: Synthesis of Sulfamoyl Fluorides

Masahito Ochiai et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2009)

添加到收藏夹

Review Chemistry, Multidisciplinary

Chemistry of Polyvalent Iodine

Viktor V. Zhdankin et al.

CHEMICAL REVIEWS (2008)

添加到收藏夹

Article Chemistry, Multidisciplinary

Difluoro-λ3-bromane-induced oxidative carbon-carbon bond-forming reactions:: Ethanol as an electrophilic partner and alkynes as nucleophiles

Masahito Ochiai et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2008)

添加到收藏夹

Article Chemistry, Multidisciplinary

Thermal and catalytic transylidations between halonium ylides and synthesis and reaction of stable aliphatic chloronium ylides

Masahito Ochiai et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2008)

添加到收藏夹

Article Chemistry, Multidisciplinary

A new type of imido group donor:: Synthesis and characterization of sulfonylimino-λ3-bromane that acts as a nitrenoid in the aziridination of olefins at room temperature under metal-free conditions

Masahito Ochiai et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2007)

添加到收藏夹

Article Chemistry, Organic

N-Cyanomethyl-β-chloro amines:: chiral building blocks for the synthesis of azacrown ethers

Francois Couty et al.

TETRAHEDRON LETTERS (2006)

添加到收藏夹

Article Chemistry, Multidisciplinary

Synthesis, structure, and reaction of 1-alkynyl(aryl)-λ3-bromanes

M Ochiai et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2003)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.