Results 71 to 80 of about 3,487 (237)

Synthesis and circularly polarized luminescence properties of BINOL-derived bisbenzofuro[2,3-b:3’,2’-e]pyridines (BBZFPys)

open access: yesBeilstein Journal of Organic Chemistry, 2020
A series of optically active bisbenzofuro[2,3-b:3’,2’-e]pyridine (BBZFPy) derivatives was synthesized starting with the readily available (S)- and (R)-1,1’-bi-2-naphthols through a palladium-catalyzed multiple intramolecular C–H/C–H coupling as the key ...
Ryo Takishima   +4 more
doaj   +1 more source

Nucleophilic Reactions of Cyclobutenones and the Related 4,4‐Dichlorocyclobutenone Derivatives

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Cyclobutenone derivates and their 4,4‐dichloro counterparts have an uninterrupted attention as useful synthons in the synthesis of complex organic molecules. Their nucleophilic reactions remain underexplored. This review brings attention to these reactions, whose outcome is not straightforward.
Sarah J. Wright   +2 more
wiley   +1 more source

Leveraging Isomerization of Azo Dyes and Imines for the Facile Synthesis of Oxadiazepines and Related Heterocycles

open access: yesJournal of Heterocyclic Chemistry, EarlyView.
A robust method for synthesizing substituted oxadiazepines and related heterocycles via intramolecular SNAr is detailed. Under mild conditions, this methodology has been leveraged to afford products of varying electronic and aryl nature in up to 99% yields.
Matthew W. Reeves   +4 more
wiley   +1 more source

A New Nano Silica Gel Supported by Thionyl Chloride as a Solid Acid for the Efficient Diazotization of Aniline Derivatives: Application and Synthesis of Azo Dyes

open access: yesE-Journal of Chemistry, 2012
A new nano silicagel supported by thionyl chloride as a solid acid was synthesized and used as a increasing the production yield of dye to affect the efficient diazotization of arylamines.
Mohammad Mirjalili   +2 more
doaj   +1 more source

Silicon differentially protects PSII and PSI photochemistry and preserves fatty acid metabolism in salt‐stressed Sorghum bicolor (L.)

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Silicon (Si) has been demonstrated to be an important element to enhance crop tolerance against salinity. Nevertheless, mechanisms underlying Si's mitigation of salt stress remains insufficiently explored and understood. This study aims to provide new insights into Si's impact on salt‐stressed Sorghum bicolor (L.) supplied or not ...
Farah Bounaouara   +12 more
wiley   +1 more source

Enantioselective Organocatalytic Sulfenylation of β‑Naphthols

open access: yes, 2018
An enantioselective sulfenylation of β-naphthols has been developed for the first time using a newly synthesized cinchona-derived thiourea as the catalyst and N-(arylthio) succinimide (or phthalimide) as an electrophilic sulfur source.
Ling Zhou (51948)   +4 more
core   +2 more sources

Solvent free one pot synthesis of amidoalkyl naphthols over phosphotungstic acid

open access: yesJournal of Saudi Chemical Society, 2017
Montmorillonite KSF clay was effectively modified by the encapsulation of phosphotungstic acid into the clay layers via sonication followed by incipient wet impregnation method.
Divya P. Narayanan   +3 more
doaj   +1 more source

White light emitting molecular logic gates

open access: yesSmart Molecules, EarlyView.
White light emitting smart molecules with Boolean logic computing ability are surveyed. Abstract White light emitting (WLE) materials are of considerable interest with commercial and societal applications in video displays and lighting devices. A characteristic property of WLE materials is the luminescence profile spanning from 380 to 700 nm.
Davide Benedetto Tiz   +2 more
wiley   +1 more source

Facile Synthesis of 2-Substituted 1,2-Dihydro-1-naphthols and 2-Substituted 1-Naphthols

open access: yes, 2016
The palladium-catalyzed ring opening of dimethoxy oxabenzonorbornadiene with aryl or vinyl halides occurred under very mild conditions to give substituted 1,2-dihydronaphthols that were oxidized with IBX to furnish substituted naphthols in excellent ...
Chi-Li Chen (1585348)   +1 more
core   +1 more source

Chiral Phosphoric Acid-Catalyzed Enantioselective Aza-Friedel–Crafts Addition of Naphthols with Isatin-Derived Ketimines

open access: yes, 2022
The enantioselective Friedel–Crafts addition of naphthols with isatin-derived ketimines was developed with H8-BINOL-derived chiral biaryl phosphoric acid.
Ting Wang (16292)   +5 more
core   +1 more source

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