Selective and highly efficient synthesis of xanthenedione or tetraketone derivatives catalyzed by ZnO nanorod-decorated graphene oxide

2018 ◽  
Vol 42 (17) ◽  
pp. 14246-14262 ◽  
Author(s):  
Sepideh Hasanzadeh Banakar ◽  
Mohammad G. Dekamin ◽  
Amene Yaghoubi
Keyword(s):  
Graphene Oxide ◽  
Efficient Method ◽  
Zno Nanorods ◽  
Zno Nanorod ◽  
Efficient Synthesis ◽  
Highly Efficient

A new and efficient method for the pseudo three-component synthesis of diverse tetraketone or xanthenedione derivatives has been described in the presence of ZnO nanorods decorated graphene oxide.

Efficient synthesis of π-extended phenazasilines for optical and electronic applications

2014 ◽  
Vol 50 (99) ◽  
pp. 15760-15763 ◽  
Author(s):  
Huanhuan Li ◽  
Yang Wang ◽  
Kai Yuan ◽  
Ye Tao ◽  
Runfeng Chen ◽  
...  
Keyword(s):  
Organic Electronics ◽  
Efficient Method ◽  
Optoelectronic Properties ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Device Applications

The rhodium-catalyzed synthesis of phenazasilines from readily achievable biarylhydrosilanes is presented. This highly efficient method offers opportunities for preparing π-extended phenazasilines with enhanced optoelectronic properties for device applications in organic electronics.

Copper(II)-Promoted Oxidation/[3+2]Cycloaddition/Aromatization Cascade: Efficient Synthesis of Tetrasubstituted NH-Pyrrole from Chalcones and Iminodiacetates

Synlett ◽  
2019 ◽  
Vol 30 (12) ◽  
pp. 1442-1446 ◽  
Author(s):  
Zhang-qi Lin ◽  
Chao-dong Li ◽  
Zi-chun Zhou ◽  
Shuai Xue ◽  
Jian-rong Gao ◽  
...  
Keyword(s):  
Efficient Method ◽  
Cascade Reaction ◽  
Oxidative Cyclization ◽  
Efficient Synthesis ◽  
Reaction Conditions ◽  
Highly Efficient ◽  
Wide Range ◽  
Reaction Proceeds

A simple and highly efficient method for the preparation of tetrasubstituted NH-pyrrole from a wide range of chalcones and diethyl iminodiacetates via a Cu(OAc)2-promoted oxidation/[3+2]cycloaddition/aromatization cascade reaction has been developed. This reaction proceeds through dehydrogenations, deamination, and oxidative cyclization, affording the corresponding products in good to excellent yields. This convenient methodology for constructing tetrasubstituted NH-pyrroles has several advantages over existing methods, such as the use of easily accessible chalcones and readily available diethyl iminodiacetates, and mild reaction conditions. A wide range of substrates are tolerated.

Highly Efficient Synthesis of Multi-Substituted Allenes from Propargyl­ Acetates and Organoaluminum Reagents Mediated by Palladium

Synthesis ◽  
2017 ◽  
Vol 49 (16) ◽  
pp. 3643-3653 ◽  
Author(s):  
Qinghan Li ◽  
Zhen Zhang ◽  
Xuebei Shao ◽  
Gang Zhang ◽  
Xinying Li
Keyword(s):  
Efficient Method ◽  
Substitution Reaction ◽  
Efficient Synthesis ◽  
Highly Efficient

A simple and mild catalytic SN2′ substitution reaction of propargyl acetates with organoaluminum reagents is reported. The SN2′ substitution reaction of propargyl acetates with organoaluminum reagents mediated by Pd(PhP3)2Cl2 (1 mol%)/PPh3 (2 mol%)/K2CO3 in tetrahydrofuran at 60 °C for 3–4 hours afforded the corresponding multi-substituted allenes in good yields (up to 94%) with high selectivities (up to 99%). The process was simple and easily performed, which offers an efficient method to synthesize the multi-substituted allene derivatives.

scholarly journals An Improved, Highly Efficient Method for the Synthesis of Bisphenols

2011 ◽  
Vol 8 (4) ◽  
pp. 2016-2019 ◽  
Author(s):  
L. S. Patil ◽  
V. S. Suryawanshi ◽  
O. B. Pawar ◽  
N. D. Shinde
Keyword(s):  
Efficient Method ◽  
High Purity ◽  
Cetyltrimethylammonium Chloride ◽  
Efficient Synthesis ◽  
Cyclic Ketones ◽  
Substituted Phenols ◽  
Mercaptopropionic Acid ◽  
Highly Efficient

An efficient synthesis of bisphenols is described by condensation of substituted phenols with corresponding cyclic ketones in presence of cetyltrimethylammonium chloride and 3-mercaptopropionic acid as a catalyst in extremely high purity and yields.

A new mild, clean and highly efficient method for the preparation of graphene quantum dots without by-products

2015 ◽  
Vol 3 (34) ◽  
pp. 6871-6876 ◽  
Author(s):  
Chong Zhu ◽  
Siwei Yang ◽  
Gang Wang ◽  
Runwei Mo ◽  
Peng He ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Quantum Dots ◽  
Graphene Oxide ◽  
Tungsten Oxide ◽  
Hydroxyl Radicals ◽  
Efficient Method ◽  
Graphene Quantum Dots ◽  
Catalytic Decomposition ◽  
Highly Efficient ◽  
By Products

We demonstrated that graphene oxide can be oxidized and cut into graphene quantum dots by hydroxyl radicals which is obtained by catalytic decomposition of hydrogen peroxide with a tungsten oxide nanowire catalyst.

Synthesis and fast-response of a photodetector of hydrothermally grown ZnO nanorods through the use of a graphene oxide/ZnO seed layer

RSC Advances ◽  
2015 ◽  
Vol 5 (114) ◽  
pp. 94222-94226 ◽  
Author(s):  
Giwoong Nam ◽  
Jae-Young Leem
Keyword(s):  
Graphene Oxide ◽  
Hydrothermal Method ◽  
Seed Layer ◽  
Zno Nanorods ◽  
Fast Response ◽  
Zno Nanorod ◽  
Uv Detector

We used a hydrothermal method combined with a graphene oxide (GO)/ZnO seed layer to fabricate a ZnO nanorod based fast-response UV detector.

Highly efficient synthesis of 2-mercaptobenzothiazole derivatives in water: metal sulfide–disulfide dynamic interchange reaction

2017 ◽  
Vol 19 (4) ◽  
pp. 1102-1108 ◽  
Author(s):  
Chunqing Lou ◽  
Ning Zhu ◽  
Ronghua Fan ◽  
Hailong Hong ◽  
Limin Han ◽  
...  
Keyword(s):  
Efficient Method ◽  
Metal Sulfide ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Interchange Reaction ◽  
Water Metal

A convenient and efficient method for the synthesis of 2-mercaptobenzothiazoles from disulfide and CS2 was performed by dynamic interchange reaction between a disulfide and a metal sulfide in water.

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