Iron or boron-catalyzed C–H arylthiation of substituted phenols at room temperature

2014 ◽  
Vol 50 (64) ◽  
pp. 8875-8877 ◽  
Author(s):  
Hua Tian ◽  
Changjin Zhu ◽  
Haijun Yang ◽  
Hua Fu
Keyword(s):  
Room Temperature ◽  
Environmentally Friendly ◽  
Substituted Phenols ◽  
Environmentally Friendly Method

A simple, efficient and environmentally friendly method for iron or boron-catalyzed C–H arylthiation of substituted phenols at room temperature has been developed, and the corresponding diaryl sulfides were prepared in good to excellent yields.

scholarly journals Anthranilic acids from isatin: an efficient, versatile and environmentally friendly method

2015 ◽  
Vol 87 (3) ◽  
pp. 1525-1529 ◽  
Author(s):  
GABRIEL F. RIO ◽  
BÁRBARA V. SILVA ◽  
SABRINA T. MARTINEZ ◽  
ANGELO C. PINTO
Keyword(s):  
Reaction Time ◽  
Nitrogen Atom ◽  
Aromatic Ring ◽  
Room Temperature ◽  
Environmentally Friendly ◽  
Reaction Conditions ◽  
Anthranilic Acids ◽  
Environmentally Friendly Method

This paper describes the preparation of a series of 16 anthranilic acids in yields ranging from 51 to 97%, by treating the isatins with NaOH and H2O2. Independently of the nature of the substituent on the aromatic ring, the reactions were complete in 15 min at room temperature, whereas those of isatins containing a substituent on the nitrogen atom required longer reaction time for completion (45 min) under the same reaction conditions.

Study on a polyacrylate-based waterborne coating: facile preparation, convenient self-healing behavior and photoluminescence properties

2020 ◽  
Vol 8 (36) ◽  
pp. 12638-12647
Author(s):  
Bo Wu ◽  
Anqian Yuan ◽  
Yao Xiao ◽  
Yi Wang ◽  
Jingxin Lei
Keyword(s):  
Room Temperature ◽  
Environmentally Friendly ◽  
Waterborne Coating ◽  
Self Healing ◽  
Photoluminescence Properties ◽  
Facile Preparation ◽  
Environmentally Friendly Method

A facile and environmentally friendly method towards mechanically robust, highly transparent, room temperature self-healing coatings.

A versatile method to prepare size- and shape-controlled copper nanocubes using an aqueous phase green synthesis

RSC Advances ◽  
2016 ◽  
Vol 6 (94) ◽  
pp. 91949-91955 ◽  
Author(s):  
Thulitha Abeywickrama ◽  
Niharika Neerudu Sreeramulu ◽  
Lan Xu ◽  
Hemali Rathnayake
Keyword(s):  
Aqueous Solution ◽  
Green Synthesis ◽  
Aqueous Phase ◽  
Room Temperature ◽  
Environmentally Friendly ◽  
Size And Shape ◽  
Controlled Morphology ◽  
Shape Controlled ◽  
Environmentally Friendly Method

A versatile, simple, and environmentally friendly method of preparing copper nanocubes with controlled morphology in aqueous solution at room temperature is demonstrated to make Cu nanocubes with sizes of 100 ± 35 nm.

scholarly journals Investigation an environmentally friendly method under magnetic field as a green solvent for the synthesis of brookite phase nanoparticles at room temperature

2021 ◽  
Author(s):  
Yahya Absalan ◽  
Mostafa Gholizadeh ◽  
Vladimir Viktorovich Kopylov ◽  
Leonid Alekseevich Butsov ◽  
Olga Kovalchukova
Keyword(s):  
Magnetic Field ◽  
Room Temperature ◽  
High Surface ◽  
Environmentally Friendly ◽  
Green Solvent ◽  
Magnetized Water ◽  
The Us ◽  
Environmentally Friendly Method ◽  
Brookite Phase ◽  
High Surface Activity

Abstract TiO2 nanoparticles in the brookite phase were synthesized within an environmentally friendly method by magnetized water obtained by the US-patent magnetizing device (US10507450B2), which changes the properties of all types of the solvents with no limitation (protic or aprotic). Furthermore, this study is the first report on the synthesis of brookite TiO2 nanoparticle through magnetized water at room temperature. The procedure was tested by five different water; ordinary, 15, 30, 45, and 60min-magnetized water. The products were analyzed by various techniques including XRD, FESEM, ICP, BJH-plot, t-plot, Langmuir plot, BET, TEM, and FTIR. The result showed that the products obtained from 30 min-magnetized water were the most properly indexed TiO2 brookite phase with high surface activity. This sample could be a suitable green photocatalyst.

scholarly journals Application of beta zeolite in allylation reaction aiming formation of new C-C bonds

Cerâmica ◽  
2020 ◽  
Vol 66 (379) ◽  
pp. 243-249
Author(s):  
V. K. S. A. Macedo ◽  
C. S. Santos ◽  
M. I. S. de Mello ◽  
J. A. B. L. R. Alves ◽  
J. M. F. Barros ◽  
...  
Keyword(s):  
Green Chemistry ◽  
Room Temperature ◽  
Reaction Times ◽  
Environmentally Friendly ◽  
Zeolite Beta ◽  
Beta Zeolite ◽  
Reaction Cycle ◽  
Homoallylic Alcohols ◽  
Environmentally Friendly Method

Abstract This study describes the formation of new C-C bonds through the allylation reaction of different aldehydes promoted by beta zeolite. This environmentally friendly method was characterized by its efficiency, versatility, and chemoselectivity in the formation of different homoallylic alcohols. Homoallylic alcohols were obtained in good yields (80% to 96%), short reaction times (30 to 75 min) at room temperature, and without the need for additional purifications. In addition, water was used as a co-solvent, ensuring the method a development in the field of green chemistry. Moreover, it was found that the zeolite beta can be reused for up to one reaction cycle without loss of its efficiency.

scholarly journals Organophotocatalytic selective deuterodehalogenation of aryl or alkyl chlorides

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Yanjun Li ◽  
Ziqi Ye ◽  
Yu-Mei Lin ◽  
Yan Liu ◽  
Yumeng Zhang ◽  
...  
Keyword(s):  
Room Temperature ◽  
Sodium Formate ◽  
Bioactive Molecules ◽  
Co Catalyst ◽  
Aryl Chlorides ◽  
Aryl Amine ◽  
Drug Molecules ◽  
Photocatalytic System ◽  
Site Selective ◽  
Environmentally Friendly Method

AbstractDevelopment of practical deuteration reactions is highly valuable for organic synthesis, analytic chemistry and pharmaceutic chemistry. Deuterodehalogenation of organic chlorides tends to be an attractive strategy but remains a challenging task. We here develop a photocatalytic system consisting of an aryl-amine photocatalyst and a disulfide co-catalyst in the presence of sodium formate as an electron and hydrogen donor. Accordingly, many aryl chlorides, alkyl chlorides, and other halides are converted to deuterated products at room temperature in air (>90 examples, up to 99% D-incorporation). The mechanistic studies reveal that the aryl amine serves as reducing photoredox catalyst to initiate cleavage of the C-Cl bond, at the same time as energy transfer catalyst to induce homolysis of the disulfide for consequent deuterium transfer process. This economic and environmentally-friendly method can be used for site-selective D-labeling of a number of bioactive molecules and direct H/D exchange of some drug molecules.

scholarly journals Green-Synthesized Phosphorescent Carbon Dot Composite for Multilevel Anti-Counterfeiting

2021 ◽  
Author(s):  
wenjie Jiang ◽  
Lan Liu ◽  
Yueyue Wu ◽  
Peng Zhang ◽  
Feiyang Li ◽  
...  
Keyword(s):  
Room Temperature ◽  
Environmentally Friendly ◽  
Carbon Dot

Room temperature phosphorescent (RTP) materials are rising and gaining considerable attention due to their special photo capture-release ability. Herein, a kind of environmentally friendly RTP C composite was devised by...

A simple and environmentally friendly method for the synthesis of N-phenylanthranilic acid derivatives

2006 ◽  
Vol 2006 (5) ◽  
pp. 342-344 ◽  
Author(s):  
Hanakere R. Girisha ◽  
Gejjalagere R. Srinivasa ◽  
D. Channe Gowda
Keyword(s):  
Environmentally Friendly ◽  
Environmentally Friendly Method

Morphology Evolution and Luminescence Properties of YF3: Sm Nano-/Microcrystals

2012 ◽  
Vol 463-464 ◽  
pp. 112-118
Author(s):  
Feng Tao ◽  
Geng Zhu ◽  
Zhi Jun Wang ◽  
Feng Pan ◽  
Yu Feng Sun ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Growth Mechanism ◽  
Room Temperature ◽  
Red Light ◽  
Environmentally Friendly ◽  
Morphology Evolution ◽  
Flat Panel Display ◽  
Flat Panel ◽  
Display Devices ◽  
Potential Applications

Abstract. Recently, there has been increasting interest in the doping of nano-/microcrystal hosts with Sm3+. However, very few examples of Sm3+doped YF3-based nanophosphors have been reported. In this paper, a variety of uniform YF3:Sm nano-/microcrystals have been successfully prepared by a facile, effective, and environmentally friendly hydrothermal method. The morphology evolution process has been investigated by quenching the reaction at different time. Based on the results, a possible growth mechanism is presented in detail. The as-obtained YF3:Sm nano-/microcrystals show strong yellow and red light emissions under room temperature, which is quite different from those reported previously and might find potential applications in fields such as light phosphor powers and advanced flat panel display devices.

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