Addition of Benzyne to 2-Hydroxypyrimidine to Synthesize 2-Aryloxypyrimidine Derivatives under Mild Conditions DOI Open Access
Wenpeng Wang,

Yang Chunhong,

Haichao Liu

et al.

Chinese Journal of Organic Chemistry, Journal Year: 2022, Volume and Issue: 42(11), P. 3835 - 3835

Published: Jan. 1, 2022

Pyrimidine aryl ether derivatives have attracted widespread attention from chemists for their diverse biological activity and pharmacological properties.In this paper, a series of pyrimidine-2-arylether were synthesized with moderate to good yield by using 2-(trimethylsilyl)phenyl trifluoromethanesulfonate as source benzyne react 2-hydroxypyrimidine.Compared the traditional method, method has advantages transition-metal-free, easy preparation 2-aryloxypyrimidine derivatives, wide functional group compatibility high yield.

Language: Английский

Aryne Chemistry: Generation Methods and Reactions Incorporating Multiple Arynes DOI
Nayoung Kim,

Myungsoo Choi,

Sung‐Eun Suh

et al.

Chemical Reviews, Journal Year: 2024, Volume and Issue: 124(20), P. 11435 - 11522

Published: Oct. 9, 2024

Arynes hold significance for the efficient fusion of (hetero) arenes with diverse substrates, advancing construction complex molecular frameworks. Employing multiple equivalents arynes is particularly effective in rapid formation polycyclic cores found optoelectronic materials and bioactive compounds. However, inherent reactivity often leads to side reactions, yielding unanticipated products underlining importance a detailed investigation into use fine-tune their reactivity. This review centers on methodologies syntheses organic reactions involving arynes, categorizing based mechanisms like cycloadditions, σ-bond insertions, nucleophilic additions, ene discusses aryne polymerization. The categorization these includes two primary approaches: first entails engagement within single step while second approach involves using equivalent sequentially across steps, both requiring strict control ensure precise participation each respective step. Additionally, provides an in-depth analysis selection precursors, organized chronologically by activation strategy, offering comprehensive background that supports main theme utilization. expectation remains this will be invaluable designing advanced engaging arynes.

Language: Английский

Citations

10

Pseudocyclic Arylbenziodoxaboroles as Water-Triggered Aryne Precursors in Reactions with Organic Sulfides DOI Creative Commons
Akira Yoshimura,

Kim Ngo,

Irina A. Mironova

et al.

Organic Letters, Journal Year: 2024, Volume and Issue: 26(9), P. 1891 - 1895

Published: Feb. 26, 2024

Pseudocyclic arylbenziodoxaboroles are unique aryne precursors under neutral aqueous conditions that selectively react with organic sulfides, forming the corresponding sulfonium salts. This reaction is compatible various substituents (alkyl, halogen, CN, NO

Language: Английский

Citations

5

Bromothiolation of Arynes for the Synthesis of 2-Bromobenzenethiol Equivalents DOI Creative Commons

Shinya Tabata,

Suguru Yoshida

Organic Letters, Journal Year: 2024, Volume and Issue: 26(18), P. 3816 - 3821

Published: April 30, 2024

A new method to synthesize o-bromobenzenethiol equivalents through aryne intermediates is disclosed. Various are prepared by the bromothiolation of with potassium xanthates. Aryl xanthates serve in synthesis diverse organosulfurs involving phenothiazines and thianthrenes further transformations.

Language: Английский

Citations

5

The Reaction of Aryl Thiols or Thioureas with o‐Diiodoarenes/NaH to Access o‐Iodoaryl Thioethers DOI

Min Hu,

Dianfan Liu,

Yuan Liu

et al.

Advanced Synthesis & Catalysis, Journal Year: 2024, Volume and Issue: 366(7), P. 1538 - 1544

Published: Feb. 8, 2024

Abstract Herein we report a method for the synthesis of thioethers by forging C(aryl)‐S bond via an aryne mechanism. The active species can be generated from o ‐diiodoarenes and NaH in THF at room temperature, then lead to arylations wide range aryl thiols thioureas. Different transition metal‐catalyzed cross‐coupling reactions, no disubstituted byproduct is formed our protocol. ‐iodoaryl thioether products are intermediates that could transformed into pharmaceutically interesting molecules.

Language: Английский

Citations

4

Recent Advances in Construction of C(sp2)–O Bonds via Aryne Participated Multicomponent Coupling Reactions DOI
Jiajing Tan, Ruirui Zhang, Peng Xia

et al.

Synthesis, Journal Year: 2022, Volume and Issue: 54(22), P. 5064 - 5076

Published: Jan. 24, 2022

Abstract Aryne chemistry is a powerful synthetic technique that forms new bonds to aromatic rings. The recent resurgence of aryne-based multicomponent coupling strategies has led an influx methodologies for the mild synthesis arene derivatives. In particular, these innovative discoveries broaden and streamline approaches toward phenol ether motifs, which are prevalent structural component across broad range related research fields. Herein, this review aims provide comprehensive overview progress in construction C(sp2)–O via aryne-induced reactions. Special attention been paid reaction design mechanistic pathways. 1 Introduction 2 Insertion-Based MCRs 3 Nucleophilic-Addition-Based 4 Cycloaddition-Based 5 Summary

Language: Английский

Citations

12

Synthesis of o-Sulfinylanilines from N-Alkyl Sulfoximines and Arynes DOI
Xianliang Wang, Marcus Frings, Kari Rissanen

et al.

The Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 88(4), P. 2666 - 2669

Published: Jan. 26, 2023

N-Alkyl sulfoximines react with arynes generated in situ under mild conditions providing o-sulfinylanilines good yields. The transformation is characterized by a broad substrate scope and functional group tolerance. structure of reaction product was confirmed single-crystal X-ray diffraction.

Language: Английский

Citations

6

Aryne Annulations for the Synthesis of Carbocycles and Heterocycles: An Updated Review DOI
Pranjal Gogoi, Manashi Sarmah,

Hemanta Hazarika

et al.

Synthesis, Journal Year: 2022, Volume and Issue: 54(22), P. 4932 - 4962

Published: May 30, 2022

Abstract Carbocycles and heterocycles are highly relevant structural moieties that have found countless applications in interdisciplinary areas. In this regard, the interesting chemistry of arynes has been embraced by researchers for synthesis structurally different polycyclic systems, i.e. carbocycles heterocycles. review, we intended to provide a comprehensive overview on annulative approach considering Kobayashi’s aryne intermediate as key reactive species with diverse nucleophilic electrophilic partners. The review highlights annulation reactions adopted (covering articles mainly from around 2010), showcasing their viability towards broad range substrates bearing functionalities. 1 Introduction 2 Synthesis 3 Heterocycles 4 Conclusions

Language: Английский

Citations

7

PPh3‐Mediated Nucleophilic Sulfonation of Sulfonyl Chlorides with Arynes: Access to Manifold Aryl Sulfones DOI

Hui‐Qi Yue,

Qiwei Li, Dawei Shi

et al.

European Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 26(39)

Published: Aug. 19, 2023

Abstract Sulfonyl chlorides are a class of cheap and readily available basic chemicals, which have routinely served as electrophilic reagents in their chemical transformations. Herein, we disclose novel PPh 3 ‐mediated nucleophilic sulfonation method sulfonyl with arynes. Different from the classical P(III)‐mediated reductive deoxygenation reaction chlorides, valence state sulfur atom has not been changed. This protocol exhibits broad functional group tolerance provides direct approach to variety aryl alkyl sulfones.

Language: Английский

Citations

4

Arynes Promoted Dehydrosulfurization of Thioamides: Access to Nitriles and Diaryl Sulfides DOI

Cuicui Liu,

Zhihua Cai,

Jinyun Luo

et al.

Organic Letters, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 30, 2024

An aryne-promoted dehydrosulfurization reaction of thioamides to give nitriles and diaryl sulfides in a one-pot manner is presented. Aromatic, heteroaromatic, aliphatic natural products drug-derived were obtained good excellent yields. Especially, selenoamide was also suitable substrate produced selenide nitrile high The D-labeled experiments indicated that the protons transfer sulfides.

Language: Английский

Citations

1

Regiocontrol by Halogen Substituent on Arynes: Generation of 3-Haloarynes and Their Synthetic Reactions DOI
Hideto Miyabe

Synthesis, Journal Year: 2022, Volume and Issue: 54(22), P. 5003 - 5016

Published: April 1, 2022

Abstract The use of arynes as highly reactive intermediates has attracted substantial attention in organic synthesis. To enhance the utility arynes, regiocontrol reactions unsymmetrically substituted is an important task. introduction halogen substituent at 3-position leads to sufficient for various synthetic reactions. This short review highlights 3-halo­arynes synthesis and discusses distortion models used explain regioselectivity, representative 3-haloarynes generated from polyhaloarenes, preparation easily activatable aryne precursors. 1 Introduction 2 Distortion Models 3 Reaction Precursors Activated by Organometallic Reagent or Base 4 Preparation Easily Activatable 5 Reactions 6 Concluding Remarks

Language: Английский

Citations

6