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.

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.

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.

A Rapid and Efficient Synthesis of Azo Aromatic Diacyl Chlorides from Nitro Aromatic Acids

2011 ◽  
Vol 233-235 ◽  
pp. 206-209
Author(s):  
Ming Yan Qiu ◽  
Yong Sheng Niu ◽  
Ai Min Wei ◽  
Ai Qin Liu
Keyword(s):  
Efficient Method ◽  
High Purity ◽  
Aromatic Acids ◽  
Efficient Synthesis ◽  
Dimethyl Benzene ◽  
Nitro Aromatic

A rapid and efficient method has been developed for the synthesis of azo aromatic diacyl chlorides from nitro aromatic acids by using dimethyl benzene as solvent. The products are obtained in good yields with high purity.

A direct and simplistic bromination of commercially important organic compounds in aqueous media by eco-friendly AlBr3-Br2 reagent system

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Organic Compounds ◽  
Efficient Method ◽  
High Purity ◽  
Aqueous Media ◽  
Economical Method ◽  
Highly Efficient ◽  
System P ◽  
Environmentally Safe ◽  
Commercially Important

A facile, simplistic, highly efficient, environmentally safe, regioselective, controllable and economical method for the bromination of organic compounds using aqueous AlBr3-Br2 reagent system was investigated. As synthesized brominated organic compounds were characterize using advanced techniques. The yield was all synthesized brominated organic compounds was excellent with high purity. Results revealed that this direct and simple bromination of commercially important organic compounds in aqueous media in the presence of recycle of AlBr3-Br2 reagent system is efficient method and could possibly be extended for the synthesis of other organic compounds.

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 cyclic P-stereogenic phosphinamides from acyclic chiral precursors via radical oxidative intramolecular aryl C–H phosphinamidation

2017 ◽  
Vol 53 (43) ◽  
pp. 5826-5829 ◽  
Author(s):  
Yuan-Hui Chen ◽  
Xu-Long Qin ◽  
Fu-She Han
Keyword(s):  
Efficient Method ◽  
Efficient Synthesis ◽  
Highly Efficient

A highly efficient method for the synthesis of cyclic P-stereogenic phosphinamides from acyclic chiral precursors via radical oxidative C–H phosphinamidation, followed by the versatile synthesis of various P-stereogenic compounds, is presented.

Polyoxometalate-based supramolecular porous frameworks with dual-active centers toward highly-efficient synthesis of functionalized p-benzoquinones

2021 ◽  
Author(s):  
Shenzhen Chang ◽  
Yanhong Chen ◽  
Haiyan An ◽  
Qingshan Zhu ◽  
Huiyun Luo ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Raw Materials ◽  
Biologically Active ◽  
Efficient Synthesis ◽  
Substituted Phenols ◽  
Active Centers ◽  
Highly Efficient ◽  
Ideal Method

Selective oxidation of substituted phenols is an ideal method for preparing functionalized p-benzoquinones (p-BQs), which are served as versatile raw materials for the synthesis of a variety of biologically active...

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