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...

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.

Triflic acid-catalyzed metal-free synthesis of (E)-2-cyanoacrylamides and 3-substituted azetidine-2,4-diones

2018 ◽  
Vol 42 (8) ◽  
pp. 6433-6440 ◽  
Author(s):  
Bapurao D. Rupanwar ◽  
Santosh S. Chavan ◽  
Anil M. Shelke ◽  
Gurunath M. Suryavanshi
Keyword(s):  
Biologically Active ◽  
Efficient Synthesis ◽  
Triflic Acid ◽  
Metal Free ◽  
Highly Efficient ◽  
Acid Catalyzed

A TfOH-catalyzed highly efficient synthesis of biologically active (E)-2-cyanoacrylamides and 3-substituted azetidine-2,4-diones has been reported with 64–94% yields under metal-free conditions.

Iron-Catalyzed Selective Oxidation ofN-Methyl Amines: Highly Efficient Synthesis of Methylene-Bridged bis-1,3-Dicarbonyl Compounds

2009 ◽  
Vol 11 (18) ◽  
pp. 4176-4179 ◽  
Author(s):  
Haijun Li ◽  
Zhiheng He ◽  
Xingwei Guo ◽  
Wenjuan Li ◽  
Xuhui Zhao ◽  
...  
Keyword(s):  
Selective Oxidation ◽  
Efficient Synthesis ◽  
Dicarbonyl Compounds ◽  
Highly Efficient

CuBr-catalyzed selective oxidation of N-azomethine: highly efficient synthesis of methine-bridged bis-indole compounds

2010 ◽  
Vol 8 (13) ◽  
pp. 2975 ◽  
Author(s):  
Jianguo Yang ◽  
Zhijing Wang ◽  
Fuyou Pan ◽  
Yongmin Li ◽  
Weiliang Bao
Keyword(s):  
Selective Oxidation ◽  
Efficient Synthesis ◽  
Highly Efficient ◽  
Indole Compounds

ChemInform Abstract: CuBr-Catalyzed Selective Oxidation of N-Azomethine: Highly Efficient Synthesis of Methine-Bridged Bisindole Compounds.

ChemInform ◽  
2010 ◽  
Vol 41 (49) ◽  
pp. no-no
Author(s):  
Jianguo Yang ◽  
Zhijing Wang ◽  
Fuyou Pan ◽  
Yongmin Li ◽  
Weiliang Bao
Keyword(s):  
Selective Oxidation ◽  
Efficient Synthesis ◽  
Highly Efficient

Nickel(0)-Catalyzed Linear-Selective Hydroarylation of Unactivated Alkenes and Styrenes with Arylboron Acids

2018 ◽  
Author(s):  
Honggui Lv ◽  
Li-Jun Xiao ◽  
Dongbing Zhao ◽  
Qi-Lin Zhou
Keyword(s):  
Butyric Acid ◽  
Biologically Active Compounds ◽  
Biologically Active ◽  
Active Compounds ◽  
Highly Efficient ◽  
Organoboronic Acids

Herein, we realized the first linear-selective hydroarylation of unactivated alkenes and styrenes with organoboronic acids by introducing directing groupon alkenes. Our method is highly efficient and scalable, and provides a modular route to assemble structurally diverse alkylarenes, especially for γ-aryl butyric acid derivatives, which have been widely utilized as chemical feedstocks to access multiple marketed drugs, and biologically active compounds.<br>

COMPARATIVE ANALYSIS OF BIOACTIVE SUBSTANCES CONTENT IN THE LEAVES AND FRUITS OF A ROWAN-TREE (SORBUS AUCUPARIA FRUCTUS) AND ASSESSMENT OF PROSPECTS IN MEDICINE AND PHARMACY

2020 ◽  
pp. 58-62
Author(s):  
Chernichkina A.D.
Keyword(s):  
Raw Materials ◽  
Wide Distribution ◽  
Biologically Active ◽  
Bioactive Substances ◽  
Plant Raw Materials ◽  
Mountain Ash ◽  
The Russian Federation ◽  
Materials Used ◽  
Active Substances ◽  
Pectin Substances

A large number of biologically active substances, organic acids, tannins, and pectin substances were detected during the study of fruits, leaves, and pulp of the fruits of mountain Ash. The content of these substances in leaves and pulp will significantly expand the arsenal of medicinal plant raw materials used. Given the wide distribution of mountain Ash in the territory of the Russian Federation, harvesting leaves from the same plants after harvesting the fruit and using pulp will make it possible to obtain new phytopreparations.

On the diagnostics of Adonis L. species (Ranunculaceae) of the Russian flora

2020 ◽  
pp. 3-14
Author(s):  
Aleksandr Luferov
Keyword(s):  
Raw Materials ◽  
Natural Populations ◽  
Structural Features ◽  
Biologically Active ◽  
Scientific Medicine ◽  
Diagnostic Features ◽  
Plant Raw Materials ◽  
Similar Chemical ◽  
Chemical Studies ◽  
Alternative Sources

The article provides brief information about cardiotonic, sedative, cytostatic, diuretic, and antibacterial effects of biologically active compounds of Adonis L. (Ranunculaceae) species. Chemical studies allowed to identify the cardiac glycosides, or cardenolides: or cardenolides: adontoxin, adonitol, adonitoxigenin, acetyldigitoxin and others. In scientific medicine, it is currently allowed to use Adonis vernalis L. Other types of Adonis have a similar chemical composition and are offered as substitutes for this official species, for example, Adonis apennina L. Many Adonis species have limited natural resources, and in some regions are rare, requiring conservation of their natural populations. The search for alternative sources of medicinal plant raw materials, based on this, is relevant. The experimental part of our research was carried out using the morphological and geographical method with the involvement of information on ecology and phenology. For the first time summarizes the diagnostic features of Adonis flora of Russian flora. Previously unknown structural features (shape and size of anthers) were identified that characterize the subgenera Adonanthe and Adonis. Taxonomic study of the genus Adonis of the Russian flora allowed us to determine its species composition, clarify its systematic affiliation, and nomenclature synonyms. 9 species were identified. Of these, 6 are perennials belonging to the subgenus Adonanthe, section Consiligo, which includes 2 subsections: Amurenses (2 species) and Vernales, which is differentiated into 2 rows: Apenninae (2 species) and Vernales (2 species). Subgenus Adonis is represented by 2 sections: Adonis (1 species) and Lophocarpa with sections Aestivales (1 species) and Dentatae (1 species). For all the considered species and varieties, the main distribution areas are given. A key has been compiled to determine the wild Adonis species distributed in Russia.

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