Iodine-catalyzed regioselective C-3 arylation of indoles with p-quinols

Dua, Neha; Peddinti, Rama Krishna

doi:10.1007/s12039-020-1742-2

Cited by 5 publications

(4 citation statements)

References 20 publications

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“…Iodine was used as a reagent for coupling reactions (Scheme 32). [92] Bronsted base-catalyzed [3 + 3] cycloaddition was also reported between para-quinol 294 and azomethine imines 297 that led to functionally rich tricyclic-oxadiazine 298. The method was found to be highly diastereoselective and chemoselective (Scheme 32).…”

Section: Scheme 29 Reactions Of Para-quinolmentioning

confidence: 99%

Molecular Complexity from Aromatics: Recent Advances in the Chemistry of paraQuinol and Masked para‐Quinone Monoketal

Chandra

Patel

2020

ChemistrySelect

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Synthesis of complex organic molecules from simple, cheap, and readily available starting materials is one of the most challenging and desirable factors in organic synthesis. In the last two decades, various methods have been developed for the de-aromatization reaction of planar aromatics compounds which lead to reactive intermediates like 2,5-cyclohexadienone ketal and para-quinol having a non-planar framework. Recently, there is an upsurge of interest in the development of the chemistry of these intermediates due to their inherent dual electrophilic and nucleophilic character. The presence of diverse functionality makes them important scaffolds and thus these are intensively utilized for the development of methodologies towards the synthesis of the highly functionalized and diverse chemical framework. These synthons have also been used in the total synthesis of many natural products. Interestingly, these are also adaptable for asymmetric synthesis. This review is a summary of the recent development of methods for 2,5-cyclohexadienone ketal and para-quinol synthesis and their application in natural product synthesis.

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Section: Scheme 29 Reactions Of Para-quinolmentioning

confidence: 99%

Molecular Complexity from Aromatics: Recent Advances in the Chemistry of paraQuinol and Masked para‐Quinone Monoketal

Chandra

Patel

2020

ChemistrySelect

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“…This is because the Zr 4+ ion is chemically more stable than that of the Ti 4+ due to its larger ionic radius (0.087 nm) than Ti 4+ (0.068 nm) [5,8,9]. Many studies have been brought on the BZT structure reporting the role of Zr 4+ in achieving high dielectric constant, low dielectric loss, and other electronic properties of BT [4,6,8,10,11].…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, among different oxide perovskites, the optical properties and photoluminescence features of BZT are very intriguing to the scientific community [7,12,13]. The BZT possesses a contribution to the development of numerous microelectronic, optoelectronic, and energy conversion devices [2,6,10,14,15]. The Zr/Ti ratio in BZT functions in determining the optical and electrical properties [2,10,12].…”

Section: Introductionmentioning

confidence: 99%

“…The BZT possesses a contribution to the development of numerous microelectronic, optoelectronic, and energy conversion devices [2,6,10,14,15]. The Zr/Ti ratio in BZT functions in determining the optical and electrical properties [2,10,12]. However, studies on the synthesis and microstructural and optical features investigation of BZT thin-film especially deposited on a quartz substrate are limited.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Optical Properties of Zirconium Co-Doped Barium Titanate Thin Films on Quartz Substrates

Sandi

Iriani

Fasquelle

2022

KEM

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The thin films of Zr co-doped BT (BZT) with the Zr concentrations of 0, 3%, and 5% have been deposited on the quartz substrates via the sol-gel technique with a spin coater. The microstructure and optical properties of the samples were identified by XRD and UV-Vis Spectrophotometer to investigate the properties influenced by the Zr number modification. The XRD patterns exhibited that the samples were a single-phase tetragonal structure and a shift of (101) peak was observed toward a lower angle with increasing Zr content confirming an enlargement in the lattice parameter and cell volume of the samples. On the other hand, the lattice strain and crystallite sizes reduce together with more Zr content. The optical properties examination demonstrated that the BT and BZT samples were highly transparent (~70-80%) in the visible wavelength and the absorption edges exchanged toward a lower wavelength due to the Zr doping particularly on the BZT5. The refractive index values were high categorized at ~ 4, 3.5, and 3.3 for BT, BZT3, and BZT5, respectively. Moreover, BZT possesses the lowest bandgap (3.57 eV) followed by BT (3.61) and BZT5 (3.72 eV)

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Strategies Employing Transition‐Metal Free Conditions for C−C Bond Formation in Indoles

Ghodake,

Paul,

Bhattacharya

2024

ChemistrySelect

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Indole motifs are omnipresent in nature and can be found in many natural products as well as pharmaceuticals. It is for this reason synthetic transformations of indole have become a topic of interest for the organic and medicinal chemist community for decades. In this review, we have emphasized the functionalization of indoles via transition‐metal‐free approaches. This review touches on many aspects in different sub‐sections, which gives a proposition of the tactics employed for the functionalization of indoles and an overview of the road ahead.

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Iodine-catalyzed regioselective C-3 arylation of indoles with p-quinols

Cited by 5 publications

References 20 publications

Molecular Complexity from Aromatics: Recent Advances in the Chemistry of paraQuinol and Masked para‐Quinone Monoketal

Molecular Complexity from Aromatics: Recent Advances in the Chemistry of paraQuinol and Masked para‐Quinone Monoketal

Microstructure and Optical Properties of Zirconium Co-Doped Barium Titanate Thin Films on Quartz Substrates

Strategies Employing Transition‐Metal Free Conditions for C−C Bond Formation in Indoles

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