Iron-Catalyzed Carboiodination of Alkynes

Deng, Weili; Li, Yajun; Li, Yougui; Bao, Hongli

doi:10.1055/s-0037-1609448

Cited by 13 publications

(4 citation statements)

References 11 publications

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“…The use of primer resins, such as epoxy resin, was found to be effective in filling the pores, limiting the sorption of water vapor, and preventing associated degradation effects [ 44 , 45 ]. Deng et al [ 46 ] compared different types of fillers, including alkyd, one-component polyurethane, and two-component polyurethane. Alkyd filler was found to have the highest adhesive strength for oak, while one-component polyurethane filler has the lowest.…”

Section: Discussionmentioning

confidence: 99%

The Influence of the Initial Treatment of Oak Wood on Increasing the Durability of Exterior Transparent Coating Systems

Dvořák,

Kvietková,

Šimůnková

et al. 2023

Polymers

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This study determined the impact of undertaking an initial treatment of oak wood by sealing its surface pores with epoxy resin, focusing on the durability of transparent coating systems when exposed outdoors. Throughout the exposure period, various parameters including color, gloss, surface wettability, and both macroscopic and microscopic surface evaluation were continuously monitored. The study involved two sets of samples: one set underwent the pretreatment, while the other did not. Subsequently, four coating systems were applied to the samples, comprising two solvent-based and two water-based coatings. The experiment was conducted over a period of two years, utilizing natural weathering methods within the premises of the Czech University of Life Sciences in Prague. The pretreatment with epoxy resin exhibited enhanced durability for all paint systems. The analysis showed a significant difference in gloss and color after 12 months of weathering exposure without any significant effect on surface wettability and sealing. However, after 24 months of the weathering exposure, no significant differences between the sealed and unsealed surface were observed. The most significant change in properties was noted for the water-based coatings used in coating systems number 3 and 4, and these coatings were rated as the best.

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Section: Discussionmentioning

confidence: 99%

The Influence of the Initial Treatment of Oak Wood on Increasing the Durability of Exterior Transparent Coating Systems

Dvořák,

Kvietková,

Šimůnková

et al. 2023

Polymers

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“…Alcohols react with N 2 O 3 to give nitrites. Alkyl nitrites [4] are commercially available nitrosating agents manufactured by the O-nitrosation of alcohols with HNO 2 (aq). [124,125] Grossi and coworkers [126] bubbled air and excess NO through the acetonitrile solution of C 5 -C 8 cycloalkyl alcohols ( 7) at 0 °C (Scheme 10a); the nitrosation proceeded via the in situ generated N 2 O 3 and gave nitrites (8) in 64-89 % yield (GC-MS) (Eq.…”

Section: O-nitrosationmentioning

confidence: 99%

“…In the nitrosative transformations using HNO 2 generated from nitrite and acid, N 2 O 3 is involved as reactive intermediate. [1,2] Dinitrogen trioxide is a powerful nitrosating agent that outmatches other existing reagents (such as NaNO 2 , [3] nitrites, [4,5] NOCl, [6] nitrosonium salts [7] etc.) in terms of reactivity and atom economy.…”

Section: Introduction: Dinitrogen Trioxide (N 2 O 3 )mentioning

confidence: 99%

Preparation of Dinitrogen Trioxide for Organic Synthesis: A Phase Equilibrium Approach

Chen,

Monbaliu

2024

Chemistry A European J

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Dinitrogen trioxide (N2O3) is a potent nitrosating agent featured with high reactivity and appealing atom economy. Because of its instability and the entanglement of chemical and phase equilibria, N2O3 has rarely been utilized in organic synthesis as a stock reagent with well‐defined composition. In this review, the preparations of pure N2O3 and its concentrated solution (> 0.1 M) are discussed from the aspect of phase equilibrium. Understanding the physical and chemical characteristics of N2O3, along with how reaction parameters (temperature, pressure, molar ratio) interact, plays a crucial role in managing the concentration of N2O3 in the liquid phase. This control holds practical significance in achieving quantitative reactions.

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“…To show the applicability of this transformation, the authors performed a series of cross-coupling reactions, demonstrating the neighboring perfluoroalkyl groups did not impede the reaction. In 2018, Bao and co-workers expanded on the carboiodination reaction ( Scheme 40 ) [ 151 ]. Their method allowed for the general alkyl chains, as well as ester and cyano moieties, to be added across the alkene.…”

Section: Reviewmentioning

confidence: 99%

Iron-catalyzed domino coupling reactions of π-systems

Pounder¹,

Tam²

2021

Beilstein J. Org. Chem.

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The development of environmentally benign, inexpensive, and earth-abundant metal catalysts is desirable from both an ecological and economic standpoint. Certainly, in the past couple decades, iron has become a key player in the development of sustainable coupling chemistry and has become an indispensable tool in organic synthesis. Over the last ten years, organic chemistry has witnessed substantial improvements in efficient synthesis because of domino reactions. These protocols are more atom-economic, produce less waste, and demand less time compared to a classical stepwise reaction. Although iron-catalyzed domino reactions require a mindset that differs from the more routine noble-metal, homogenous iron catalysis they bear the chance to enable coupling reactions that rival that of noble-metal-catalysis. This review provides an overview of iron-catalyzed domino coupling reactions of π-systems. The classifications and reactivity paradigms examined should assist readers and provide guidance for the design of novel domino reactions.

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Iron-Catalyzed Carboiodination of Alkynes

Cited by 13 publications

References 11 publications

The Influence of the Initial Treatment of Oak Wood on Increasing the Durability of Exterior Transparent Coating Systems

The Influence of the Initial Treatment of Oak Wood on Increasing the Durability of Exterior Transparent Coating Systems

Preparation of Dinitrogen Trioxide for Organic Synthesis: A Phase Equilibrium Approach

Iron-catalyzed domino coupling reactions of π-systems

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