One-Step Synthesis of Aromatic Terminal Alkynes from Their Corresponding Ketones under Microwave Irradiation.

ChemInform ◽  
2006 ◽  
Vol 37 (46) ◽  
Author(s):  
Mohammad Ghaffarzadeh ◽  
Mohammad Bolourtchian ◽  
Zohreh Hassanzadeh Fard ◽  
Mohammad Reza Halvagar ◽  
Farshid Mohsenzadeh
Keyword(s):  
Microwave Irradiation ◽  
Terminal Alkynes ◽  
One Step

One‐Step Synthesis of Aromatic Terminal Alkynes from Their Corresponding Ketones under Microwave Irradiation

2006 ◽  
Vol 36 (14) ◽  
pp. 1973-1981 ◽  
Author(s):  
Mohammad Ghaffarzadeh ◽  
Mohammad Bolourtchian ◽  
Zohreh Hassanzadeh Fard ◽  
Mohammad Reza Halvagar ◽  
Farshid Mohsenzadeh
Keyword(s):  
Microwave Irradiation ◽  
Terminal Alkynes ◽  
One Step

One-step Construction of Xanthone Scaffold Assisted by Microwave Irradiation to Optimize the Synthesis of DMXAA

2018 ◽  
Vol 34 (6) ◽  
pp. 918-922 ◽  
Author(s):  
Zhenlei Jiang ◽  
Jie Liu ◽  
Fan Zhou ◽  
Jianrun Zhang ◽  
Zhijun Liu ◽  
...  
Keyword(s):  
Microwave Irradiation ◽  
One Step

Microwave-Irradiated Preparation of Super Absorbent Resin by Graft Copolymerization of Starch and Acrylic Acid

2011 ◽  
Vol 291-294 ◽  
pp. 1335-1338
Author(s):  
Da Biao Zhao
Keyword(s):  
Acrylic Acid ◽  
Microwave Irradiation ◽  
Graft Copolymerization ◽  
Irradiation Time ◽  
Low Cost ◽  
Power Level ◽  
Conventional Heating ◽  
Simple Process ◽  
One Step ◽  
Microwave Power Level

Graft copolymerization of acrylic acid(AA) on starch to prepare super absorbent resin (SAR) under microwave irradiation were investigated using N,N-methylene bis-acrylamide as crosslinker and potassium persulfate as initiator. The influences of the amount of initiator and crosslinker, neutralization degree of acrylic acid(AA), ratio of starch to AA, microwave power level and irradiation time on the distilled water absorption amount of resin were investigated. The results indicated that it only needed 4min under the microwave level of 231W to obtain the resin with the maximum absorption amount of 1110g×g-1, under the conditions that 0.3wt% initiator, 0.02wt% crosslinker, 60% neutralization degree of acrylic acid, the ratio of starch to acrylic acid of 0.25. Under microwave irradiation, the synthesis and drying of super absorbent resin could be completed at one step without nitrogen. Compared to conventional heating method, the methods had the striking advantages of short reaction time, simple process and low cost.

scholarly journals A Sustainable Approach to the Low-Cost Recycling of Waste Glass Fibres Composites towards Circular Economy

2020 ◽  
Vol 12 (2) ◽  
pp. 641 ◽  
Author(s):  
Omid Zabihi ◽  
Mojtaba Ahmadi ◽  
Chao Liu ◽  
Roya Mahmoodi ◽  
Quanxiang Li ◽  
...  
Keyword(s):  
Microwave Irradiation ◽  
End Of Life ◽  
Epoxy Polymer ◽  
Irradiation Time ◽  
Low Cost ◽  
Chemical Oxidation ◽  
Reinforced Polymers ◽  
Practical Applications ◽  
Low Energy Consumption ◽  
One Step

For practical applications, both environmental and economic aspects are highly required to consider in the development of recycling of fibre reinforced polymers (FRPs) encountering their end-of-life. Here, a sustainable, low cost, and efficient approach for the recycling of the glass fibre (GF) from GF reinforced epoxy polymer (GFRP) waste is introduced, based on a microwave-assisted chemical oxidation method. It was found that in a one-step process using microwave irradiation, a mixture of hydrogen peroxide (H2O2) as a green oxidiser and tartaric acid (TA) as a natural organic acid could be used to decompose the epoxy matrix of a waste GFRP up to 90% yield. The recycled GFs with ~92.7% tensile strength, ~99.0% Young’s modulus, and ~96.2% strain-to-failure retentions were obtained when compared to virgin GFs (VGFs). This short microwave irradiation time using these green and sustainable recycling solvents makes this a significantly low energy consumption approach for the recycling of end-of-life GFRPs.

scholarly journals Enhanced electrochemical performance of α-MoO3/graphene nanocomposites prepared by an in situ microwave irradiation technique for energy storage applications

RSC Advances ◽  
2020 ◽  
Vol 10 (38) ◽  
pp. 22836-22847
Author(s):  
P. Nagaraju ◽  
M. Arivanandhan ◽  
A. Alsalme ◽  
A. Alghamdi ◽  
R. Jayavel
Keyword(s):  
Energy Storage ◽  
Microwave Irradiation ◽  
Electrochemical Performance ◽  
Graphene Sheets ◽  
Microwave Irradiation Method ◽  
Graphene Nanocomposites ◽  
One Step ◽  
Energy Storage Applications ◽  
Enhanced Electrochemical Performance

Nanoparticles of α-molybdenum oxide (α-MoO3) are directly grown on graphene sheets using a surfactant-free facile one step ultrafast in situ microwave irradiation method.

scholarly journals (3Z)-3-[(Z)-2-(2-Oxoindolin-3-ylidene)hydrazin-1-ylidene]indolin-2-one 0.17-hydrate

2014 ◽  
Vol 70 (6) ◽  
pp. o721-o721
Author(s):  
Yong-Hong Liu ◽  
Lei Zhao ◽  
Ming-Xuan Liu ◽  
Hai Lin ◽  
Jing-Jing Li
Keyword(s):  
Hydrogen Bonds ◽  
Microwave Irradiation ◽  
Organic Molecule ◽  
Condensation Reaction ◽  
Three Dimensional ◽  
Water Molecules ◽  
Inversion Symmetry ◽  
Compound C ◽  
One Step ◽  
The One

In the title compound, C16H10N4O2·0.17H2O, prepared by the one-step condensation reaction of isatin with hydrazine hydrate under microwave irradiation, the complete organic molecule is generated by crystallographic inversion symmetry and therefore exists in anS-transconformation. In the crystal, molecules are linked by N—H...O hydrogen bonds, generating a three-dimensional framework with [001] channels, which are occupied by the disordered water molecules.

Sign in / Sign up

Export Citation Format

Share Document