ChemInform Abstract: Environmentally Benign Aqueous Zinc Tetrafluoroborate-Catalyzed One-Pot Biginelli Condensation at Room Temperature.

A copper(II)-catalyzed multi-component one-pot approach for the synthesis of 1,3-oxazines at room temperature is reported here. Methanol is used as the solvent as well as the carbon source. The methylene carbon of the oxazine product comes from methanol via formaldehyde. tert-Butyl hydroperoxide is used as the oxidant. The reaction uses an environmentally benign metal catalyst and oxidant. No inert atmosphere or precaution is required for the reaction. Most importantly, the reaction avoids the use of carcinogenic formaldehyde.

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ZnO-beta zeolite mediated simple and efficient method for the one-pot synthesis of quinoxaline derivatives at room temperature

Open Chemistry ◽

10.2478/s11532-009-0151-7 ◽

2010 ◽

Vol 8 (2) ◽

pp. 320-325 ◽

Cited By ~ 11

Author(s):

Santosh Katkar ◽

Pravinkumar Mohite ◽

Lakshman Gadekar ◽

Balasaheb Arbad ◽

Machhindra Lande

Keyword(s):

Efficient Method ◽

Room Temperature ◽

Environmentally Benign ◽

Beta Zeolite ◽

Reaction Conditions ◽

One Pot ◽

One Pot Synthesis ◽

Quinoxaline Derivatives ◽

The One ◽

Work Up

AbstractA rapid and an efficient one-pot method for the synthesis of quinoxalines catalysed by ZnO-beta zeolite at room temperature is described. This environmentally benign method provides several advantages over methods that are currently employed such as a simple work-up, mild reaction conditions, good to excellent yields, and a process to recover and reuse the catalyst for several cycles with consistent activity.

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A simple one-pot environmentally benign synthesis of ascorbic acid-capped CdSe nanoparticles at room temperature

Materials Letters ◽

10.1016/j.matlet.2012.01.121 ◽

2012 ◽

Vol 75 ◽

pp. 84-86 ◽

Cited By ~ 7

Author(s):

Oluwatobi S. Oluwafemi ◽

Sandile P. Songca

Keyword(s):

Ascorbic Acid ◽

Room Temperature ◽

Cdse Nanoparticles ◽

Environmentally Benign ◽

One Pot ◽

Benign Synthesis

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An Efficient One Pot, Multicomponent Synthesis of 1, 3-Thiazolidin-4-Ones Using L-Proline as Catalyst in Water

Letters in Organic Chemistry ◽

10.2174/1570178618666210119121734 ◽

2021 ◽

Vol 18 ◽

Author(s):

Yatin U. Gadkari ◽

Rajesh D. Shanbhag ◽

Vikas N. Telvekar

Keyword(s):

Energy Efficient ◽

Room Temperature ◽

Thioglycolic Acid ◽

Current Approach ◽

Environmentally Benign ◽

Multicomponent Synthesis ◽

One Pot ◽

The One ◽

Aqueous Conditions ◽

Aromatic Heterocyclic

: An efficient methodology for the synthesis of 1,3-thiazolidin-4-ones using L-Proline as catalyst under aqueous conditions has been developed. The one-pot, multicomponent reaction of aromatic/heterocyclic aldehyde, aromatic amine and thioglycolic acid at room temperature give 1,3-thiazolidin-4-ones in moderate to good yields. Further, the current approach is notably greener than traditional methods with E-factor of 3.1 and the eco scale score of 96. The developed protocol offers several features, such as being simple, environmentally benign, energy-efficient, economical, mild conditions, shorter reaction time.

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A one-pot method for the synthesis of 3-(hetero-)aryl-1,4,2-dioxazol-5-ones

Canadian Journal of Chemistry ◽

10.1139/cjc-2019-0419 ◽

2020 ◽

Vol 98 (3) ◽

pp. 158-163 ◽

Cited By ~ 1

Author(s):

Toren Hynes ◽

David S. Hall ◽

Alexander W.H. Speed ◽

Jason D. Masuda ◽

J.R. Dahn

Keyword(s):

Ethyl Acetate ◽

Lithium Ion Batteries ◽

Hydroxamic Acid ◽

Room Temperature ◽

Lithium Ion ◽

Environmentally Benign ◽

One Pot ◽

Electrolyte Additives ◽

Reaction Proceeds ◽

Halogenated Solvents

3-R-1,4,2-dioxazol-5-ones are a class of compounds that are increasingly finding diverse uses, including as regioselective amidation reagents and as electrolyte additives that enable long cycling lifetimes in rechargeable lithium-ion batteries. Conventional methods for their synthesis tend to be slow and time-consuming, requiring isolation and thorough drying of a hydroxamic acid intermediate, followed by a separate cyclization step with N,N′-carbonyldiimidazole. Furthermore, the cyclization is typically performed in dichloromethane, an environmentally harmful solvent. This work demonstrates a new one-pot method for the synthesis of these compounds that eliminates the need for isolation of the intermediate or the use of halogenated solvents. The reaction is mainly performed using environmentally benign ethyl acetate and a relatively small amount of N,N-dimethylformamide. The reaction proceeds readily at room temperature and requires no expensive metal catalysts to function.

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ChemInform Abstract: A Practicable Environmentally Benign One-Pot Synthesis of 2-Arylbenzofurans at Room Temperature.

ChemInform ◽

10.1002/chin.201230120 ◽

2012 ◽

Vol 43 (30) ◽

pp. no-no

Author(s):

Lian-Yan Liao ◽

Gang Shen ◽

Xue Zhang ◽

Xin-Fang Duan

Keyword(s):

Room Temperature ◽

Environmentally Benign ◽

One Pot ◽

One Pot Synthesis

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A practicable environmentally benign one-pot synthesis of 2-arylbenzofurans at room temperature

Green Chemistry ◽

10.1039/c2gc16181h ◽

2012 ◽

Vol 14 (3) ◽

pp. 695 ◽

Cited By ~ 15

Author(s):

Lian-Yan Liao ◽

Gang Shen ◽

Xue Zhang ◽

Xin-Fang Duan

Keyword(s):

Room Temperature ◽

Environmentally Benign ◽

One Pot ◽

One Pot Synthesis

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Room Temperature Alkali Metal Reduction of Carbon Dioxide

10.26434/chemrxiv.12665336 ◽

2020 ◽

Author(s):

Lucas A. Freeman ◽

Akachukwu D. Obi ◽

Haleigh R. Machost ◽

Andrew Molino ◽

Asa W. Nichols ◽

...

Keyword(s):

Alkali Metal ◽

Alkali Metals ◽

Room Temperature ◽

Chemical Reduction ◽

Bond Cleavage ◽

Open Shell ◽

Metal Reduction ◽

One Pot ◽

Earth Abundant ◽

Electron Reduction

The reduction of the relatively inert carbon–oxygen bonds of CO2 to access useful CO2-derived organic products is one of the most important fundamental challenges in synthetic chemistry. Facilitating this bond-cleavage using earth-abundant, non-toxic main group elements (MGEs) is especially arduous because of the difficulty in achieving strong inner-sphere interactions between CO2 and the MGE. Herein we report the first successful chemical reduction of CO2 at room temperature by alkali metals, promoted by a cyclic(alkyl)(amino) carbene (CAAC). One-electron reduction of CAAC-CO2 adduct (1) with lithium, sodium or potassium metal yields stable monoanionic radicals clusters [M(CAAC–CO2)]n(M = Li, Na, K, 2-4) and two-electron alkali metal reduction affords open-shell, dianionic clusters of the general formula [M2(CAAC–CO2)]n (5-8). It is notable that these crystalline clusters of reduced CO2 may also be isolated via the “one-pot” reaction of free CO2 with free CAAC followed by the addition of alkali metals – a reductive process which does not occur in the absence of carbene. Each of the products 2-8 were investigated using a combination of experimental and theoretical methods.

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A Series of Metal-Organic Frameworks for Selective CO2 Capture and Catalytic Oxidative Carboxylation of Olefins

10.26434/chemrxiv.7068509 ◽

2018 ◽

Author(s):

Huong T. D. Nguyen ◽

Y B. N. Tran ◽

Hung N. Nguyen ◽

Tranh C. Nguyen ◽

Felipe Gándara ◽

...

Keyword(s):

Room Temperature ◽

Gas Adsorption ◽

New Materials ◽

One Pot ◽

Acid Gas ◽

Naphthalene Diimide ◽

Styrene Carbonate ◽

Metal Organic ◽

Adsorption Of Co ◽

The One

Three novel lanthanide metal˗organic frameworks (Ln-MOFs), namely MOF-590, -591, and -592 were constructed from a naphthalene diimide tetracarboxylic acid. Gas adsorption measurements of MOF-591 and -592 revealed good adsorption of CO2 (low pressure, at room temperature) and moderate CO2 selectivity over N2 and CH4. Accordingly, breakthrough measurements were performed on a representative MOF-592, in which the separation of CO2 from binary mixture containing N2 and CO2 was demonstrated without any loss in performance over three consecutive cycles. Moreover, MOF-590, MOF-591, and MOF-592 exhibited catalytic activity in the one-pot synthesis of styrene carbonate from styrene and CO2 under mild conditions (1 atm CO2, 80 °C, and solvent-free). Among the new materials, MOF-590 revealed a remarkable efficiency with exceptional conversion (96%), selectivity (95%), and yield (91%).

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A Study on the Rearrangement of Dialkyl 1-Aryl-1-hydroxymethylphosphonates to Benzyl Phosphates

Current Organic Chemistry ◽

10.2174/1385272824666200226114306 ◽

2020 ◽

Vol 24 (4) ◽

pp. 465-471 ◽

Cited By ~ 2

Author(s):

Zita Rádai ◽

Réka Szabó ◽

Áron Szigetvári ◽

Nóra Zsuzsa Kiss ◽

Zoltán Mucsi ◽

...

Keyword(s):

Quantum Chemical ◽

Room Temperature ◽

Phase Transfer ◽

One Pot ◽

Substrate Dependence ◽

Triethylbenzylammonium Chloride ◽

One Step ◽

The Pudovik Reaction ◽

The One ◽

Solid Liquid

The phospha-Brook rearrangement of dialkyl 1-aryl-1-hydroxymethylphosphonates (HPs) to the corresponding benzyl phosphates (BPs) has been elaborated under solid-liquid phase transfer catalytic conditions. The best procedure involved the use of triethylbenzylammonium chloride as the catalyst and Cs2CO3 as the base in acetonitrile as the solvent at room temperature. The substrate dependence of the rearrangement has been studied, and the mechanism of the transformation under discussion was explored by quantum chemical calculations. The key intermediate is an oxaphosphirane. The one-pot version starting with the Pudovik reaction has also been developed. The conditions of this tandem transformation were the same, as those for the one-step HP→BP conversion.

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