Antagonist Concepts of Polypyrrole Actuators: Bending Hybrid Actuator and Mirrored Trilayer Linear Actuator

Following the natural muscle antagonist actuation principle, different adaptations for “artificial muscles” are introduced in this work. Polypyrrole (PPy) films of different polymerization techniques (potentiostatic and galvanostatic) were analyzed and their established responses were combined in several ways, resulting in beneficial actuation modes. A consecutive “one-pot” electrosynthesis of two layers with the different deposition regimes resulted in an all-PPy bending hybrid actuator. While in most cases the mixed-ion activity of conductive polymers has been considered a problem or a drawback, here for the first time, the nearly equal expansions upon oxidation and reduction of carefully selected conditions further allowed to fabricate a “mirrored” trilayer laminate, which behaved as a linear actuator.

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An Expeditious One-Pot Three-Component Synthesis of 4-Aryl-3,4-dihydrobenzo[g] quinoline-2,5,10(1H)-triones under Green Conditions

Current Organic Chemistry ◽

10.2174/1385272823666191108123330 ◽

2020 ◽

Vol 23 (23) ◽

pp. 2626-2634

Author(s):

Saiedeh Kamalifar ◽

Hamzeh Kiyani

Keyword(s):

Reaction Medium ◽

Meldrum's Acid ◽

Meldrum’S Acid ◽

One Pot ◽

One Pot Synthesis ◽

Substituted Benzaldehydes ◽

High Yields ◽

First Time ◽

Green Conditions

: An efficient and facial one-pot synthesis of 4-aryl-3,4-dihydrobenzo[g]quinoline- 2,5,10(1H)-triones was developed for the first time. The process proceeded via the three-component cyclocondensation of 2-amino-1,4-naphthoquinone with Meldrum’s acid and substituted benzaldehydes under green conditions. The fused 3,4-dihydropyridin-2(1H)- one-ring naphthoquinones have been synthesized with good to high yields in refluxing ethanol as a green reaction medium. This protocol is simple and effective as well as does not involve the assistance of the catalyst, additive, or hazardous solvents.

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Amino- and sulfo-bifunctionalized hyper-crosslinked organic nanotube frameworks as efficient catalysts for one-pot cascade reactions

New Journal of Chemistry ◽

10.1039/c8nj04514c ◽

2019 ◽

Vol 43 (5) ◽

pp. 2269-2273 ◽

Cited By ~ 3

Author(s):

Guojie Meng ◽

Shengguang Gao ◽

Ying Liu ◽

Li Zhang ◽

Chunmei Song ◽

...

Keyword(s):

Cascade Reactions ◽

One Pot ◽

First Time

The synthesis of amino- and sulfo-bifunctionalized hyper-crosslinked organic nanotube frameworks for one-pot cascade reactions was reported for the first time.

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Pt NPs@GO as a highly efficient and reusable catalyst for one-pot synthesis of acridinedione derivatives

RSC Advances ◽

10.1039/c5ra06441d ◽

2015 ◽

Vol 5 (61) ◽

pp. 49295-49300 ◽

Cited By ~ 65

Author(s):

Handan Pamuk ◽

Burak Aday ◽

Fatih Şen ◽

Muharrem Kaya

Keyword(s):

Aromatic Aldehydes ◽

Reusable Catalyst ◽

One Pot ◽

Highly Efficient ◽

One Pot Synthesis ◽

First Time

Pt NPs@GO has been used for the first time for synthesizing acridinedione from dimedone, aromatic aldehydes and various amines as a catalyst.

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Catalyst-Free One-Pot Synthesis of Novel Heteroarylamine Substituted Furo[3,2-c]coumarins

Synlett ◽

10.1055/s-0036-1591582 ◽

2018 ◽

Vol 29 (12) ◽

pp. 1589-1592 ◽

Cited By ~ 6

Author(s):

Abolfazl Olyaei ◽

Mahnaz Saraei ◽

Reyhaneh Khoeiniha

Keyword(s):

Michael Addition ◽

Aldol Condensation ◽

Ring Closure ◽

Dehydration Reaction ◽

One Pot ◽

Catalyst Free ◽

One Pot Synthesis ◽

Tandem Process ◽

First Time

A high-yielding cyclocondensation of 4-hydroxycoumarin, phenylglyoxal monohydrate, and heteroarylamines proceeds without catalysis, which gives novel functionalized furo[3,2-c]coumarins and heteroarylamino alkylation of coumarin products in acetonitrile under reflux, is reported for the first time. This tandem process involves sequentially an aldol condensation, Michael addition, a ring closure, and dehydration reaction.

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Palladium-promoted sulfur atom migration on carboranes: facile B(4)−S bond formation from mononuclear Pd-B(4) complexes

Pure and Applied Chemistry ◽

10.1515/pac-2017-0609 ◽

2018 ◽

Vol 90 (4) ◽

pp. 607-616

Author(s):

Yin-Ping Wang ◽

Yue-Jian Lin ◽

Guo-Xin Jin

Keyword(s):

Sulfur Atom ◽

Bond Formation ◽

Reaction Process ◽

One Pot ◽

Leaving Group ◽

Atom Migration ◽

First Time

AbstractFor the first time, carborane complexes containing a B(4)–S bond were obtained directly by heating mononuclear Pd-B(4)-bound carborane complexes. A possible mechanism involved in sulfur atom migration is presented in which the leaving group, pyridine, benzyl isocyanide or PPh3, is demonstrated to be the trigger of the reaction process. In this work, efficient routes are developed through one-pot reactions to prepare B(4)-S carborane derivatives.

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Lewis acid-catalyzed tandem cyclization of in situ generated o-quinone methides and arylsulfonyl hydrazides for a one-pot entry to 3-sulfonylbenzofurans

Organic Chemistry Frontiers ◽

10.1039/c9qo01196j ◽

2019 ◽

Vol 6 (24) ◽

pp. 3929-3933 ◽

Cited By ~ 2

Author(s):

Fan-Xiao Meng ◽

Ruo-Nan Wang ◽

Hong-Li Huang ◽

Shu-Wen Gong ◽

Qian-Li Li ◽

...

Keyword(s):

Lewis Acid ◽

Quinone Methides ◽

One Pot ◽

Acid Catalyzed ◽

Tandem Cyclization ◽

First Time

Lewis acid-mediated one-pot tandem cyclization of o-QMs with arylsulfonyl hydrazides was described for the first time and the corresponding 3-sulfonylbenzofuran products were obtained in moderate to good yields.

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Synthesis of new bimetallic phosphate (Al/Ag3PO4) and study for its Catalytic performance in the synthesis of 1,2-dihydro-l-phenyl-3H-naphth [1,2-e]-[1,3] oxazin-3-one derivatives

Mediterranean Journal of Chemistry ◽

10.13171/mjc02108091579elhallaoui ◽

2021 ◽

Vol 11 (3) ◽

pp. 215

Author(s):

Achraf El Hallaoui ◽

Tourya Ghailane ◽

Soukaina Chehab ◽

Youssef Merroun ◽

Rachida Ghailane ◽

...

Keyword(s):

Reaction Times ◽

Catalytic Performance ◽

X Ray Diffraction ◽

One Pot ◽

X Ray ◽

Silver Sulfate ◽

Triple Super Phosphate ◽

Aryl Aldehyde ◽

Ft Ir ◽

First Time

This work aims to prepare a new bimetallic phosphate catalyst using a new simple and effective method. This new catalyst was ready for the first time by a modification of Triple Super Phosphate (TSP) fertilizer with silver sulfate (AgSO4), followed by the impregnation of the aluminum atoms using aluminum nitrate (Al(NO3)3). The use of Al/Ag3PO4, for the first time as a heterogeneous catalyst in organic chemistry, offers a new, efficient, and green pathway for synthesizing 1,2-dihydro-l-phenyl-3H-naphth[1,2-e]-[1,3]oxazin-3-one derivatives by one-pot three-component cyclocondensation of b-naphthol, aryl aldehyde, and urea. The structure and the morphology of the prepared catalyst were characterized by spectroscopic methods such as X-Ray Diffraction (XRD), Fourier Transform Infrared spectroscopy (FT-IR), and dispersive X-ray spectrometry coupled with a scanning electron microscope (EDX-SEM). In addition, the optimization of the reaction parameters was carried out considering the effect of catalyst amount, the temperature, and the solvent. The procedure described herein allowed a comfortable preparation of oxazine derivatives with excellent yields, short reaction times, and in the absence of organic solvent.

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PhotoATRP Induced Self-Assembly (PhotoATR-PISA) Enables Simplified Synthesis of Responsive Polymer Nanoparticles in One-Pot

10.26434/chemrxiv.12988559 ◽

2020 ◽

Author(s):

Ali Shahrokhinia ◽

Randall Scanga ◽

Priyanka Biswas ◽

James Reuther

Keyword(s):

Self Assembly ◽

Glycidyl Methacrylate ◽

Uv Light ◽

Copper Catalyst ◽

Crosslinking Agent ◽

Polymer Nanoparticles ◽

One Pot ◽

Responsive Polymer ◽

Catalyst Systems ◽

First Time

ABSTRACT: Photo-controlled atom transfer radical polymerization (PhotoATRP) was implemented, for the first time, to accomplish polymerization induced self-assembly (PISA) mediated by UV light (λ = 365 nm) using ppm levels (ca. < 20 ppm) of copper catalyst at ambient temperature. Using CuIIBr2/tris(pyridin-2-ylmethyl)amine (TPMA) catalyst systems, PISA was per-formed all in one-pot starting from synthesis of solvophilic poly(oligo(ethylene oxide) methyl ether methacrylate) (POEGMA) blocks to core-crosslinked nanoparticles (NPs) utilizing poly(glycidyl methacrylate) (PGMA) and N,N-cystamine bismethacrylamide (CBMA) as the solvophobic copolymer and crosslinking agent, respectively. Sequential chain-extensions were performed for PGMA demonstrating capabilities for accessing multi-block copolymers with temporal control via switching the UV light on and off. Further, core-crosslinking of PISA nanoparticles was performed via the slow incorporation of the CBMA enabling one-pot crosslinking during the PISA process. Finally, the disulfide installed in the CBMA core-crosslinks allowed for the stimuli-triggered dissociation of nanoparticles using DL-dithiothreitol at acidic pH.

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Direct insight into crystallization and stability of hybrid perovskite CH3NH3PbI3via solvothermal synthesis

Journal of Materials Chemistry A ◽

10.1039/c5ta03616j ◽

2015 ◽

Vol 3 (31) ◽

pp. 15854-15857 ◽

Cited By ~ 18

Author(s):

Ying Chen ◽

Shuang Yang ◽

Xiao Chen ◽

Yi Chu Zheng ◽

Yu Hou ◽

...

Keyword(s):

Single Crystals ◽

Solvothermal Synthesis ◽

One Pot ◽

Hybrid Perovskite ◽

First Time ◽

Solvothermal Conditions ◽

Insight Into

We report a one-pot solvothermal approach to synthesize cuboid shaped CH3NH3PbI3 single crystals. Growth and dissolution phenomena of perovskite crystals were discovered for the first time under solvothermal conditions.

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One-pot synthesis of the new Hydroxamic acid and its complexes with metals

Letters in Organic Chemistry ◽

10.2174/1570178619666220111121743 ◽

2022 ◽

Vol 19 ◽

Author(s):

Gulu Abbasova ◽

Ajdar Medjidov

Keyword(s):

Nmr Spectroscopy ◽

Thermogravimetric Analysis ◽

Hydroxamic Acid ◽

Uv Spectroscopy ◽

Molar Ratio ◽

One Pot ◽

Ethanol Medium ◽

Physicochemical Methods ◽

Colored Complexes ◽

First Time

Abstract: A one-pot conversion of 2-hydroxy-1-naphthoic aldehyde to hydroxamic acid was described. An efficient photoorganocatalytic method of synthesis was developed. The obtained hydroxamic acid was identified by various physicochemical methods such as IR, UV- and NMR-spectroscopy. Solid colored complexes of copper (II) and iron (II), respectively, green and brown colours with the obtained hydroxamic acid were synthesized in ethanol medium for the first time. The molar ratio of ligand and metal in the complex was 2:1. Their structures were established using IR, UV- spectroscopy and thermogravimetric analysis.

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