Recent Advances of Sulfonylation Reactions in Water

2020 ◽  
Vol 17 (4) ◽  
pp. 271-281
Author(s):  
Li Wu ◽  
Lifen Peng ◽  
Zhifang Hu ◽  
Yinchun Jiao ◽  
Zilong Tang
Keyword(s):  
Natural Products ◽  
Organic Synthesis ◽  
Low Cost ◽  
Point Of View ◽  
Sulfinic Acid ◽  
Sulfonyl Chlorides ◽  
Recent Advances ◽  
Water As Solvent ◽  
Proton Source ◽  
Sulfinic Acids

Background: The sulfonyl groups are general structural moieties present in agrochemicals, pharmaceuticals, and natural products. Recently, many efforts have been focused on developing efficient procedures for preparation of organic sulfones. Materials and Methods: Water, a proton source, is considered one of the most ideal and promising solvents in organic synthesis for its easy availability, low cost, nontoxic and nonflammable characteristics. From the green and sustainable point of view, more and more reactions are designed proceeding in water. Objective: The review focuses on recent advances of sulfonylation reactions proceeding in water. Sulfonylation reactions using sodium sulfinates, sulfonyl hydrazides, sulfinic acids, and sulfonyl chlorides as sulfonating agents were introduced in detail. Results and Discussion: In this review, sulfonylation reactions proceeding in water developed in recent four yields were presented. Sulfonylation reactions using water as solvent have attracted more and more attention because water is one of the most ideal and promising solvents in organic synthesis for its facile availability, low cost, nontoxic and nonflammable properties. Conclusion: Numerous sulfonating agents such as sodium sulfinates, sulfonyl hydrazides, sulfinic acid, sulfonyl chlorides and disulfides are efficient for sulfonylation reactions which proceed in water.

scholarly journals Recent Advances in Organocatalyzed Asymmetric Synthesis of Benzopyran and Benzodihydropyran (Chromane) Nuclei

Symmetry ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 1510
Author(s):  
Renato Dalpozzo ◽  
Raffaella Mancuso
Keyword(s):  
Natural Products ◽  
Asymmetric Synthesis ◽  
Organic Synthesis ◽  
Building Blocks ◽  
Core Structure ◽  
The Core ◽  
Recent Advances ◽  
Set Up

Benzopyran and benzodihydropyran (chromane) nuclei are the core structure of many natural products, in particular flavonoids. Many compounds possessing this structure are nutraceuticals, pharmaceutical nutrients. Therefore, benzopyran and chromane scaffolds are important building blocks in organic synthesis and many efforts have been made to set up efficient methods for their synthesis. In particular, asymmetric methods are of great importance, being natural products, and generally chiral substances. This review aims to cover literature in the range 2017–first half of 2019.

Recent Advances in Synthesis and Uses of Heterocycles-based Palladium(II) Complexes as Robust, Stable, and Low-cost Catalysts for Suzuki- Miyaura Crosscouplings

2019 ◽  
Vol 23 (15) ◽  
pp. 1601-1662 ◽  
Author(s):  
Mohamed R. Shaaban ◽  
Thoraya. A. Farghaly ◽  
Afaf Y. Khormi ◽  
Ahmad M. Farag
Keyword(s):  
Organic Synthesis ◽  
Low Cost ◽  
Cross Coupling ◽  
Organic Reactions ◽  
Pharmaceutical Substances ◽  
Recent Advances

C-C cross-couplings constitute the largest diversity of organic reactions of chemical, biomedical, and industrial significance. They are also among the most frequently encountered reactions used in the synthesis of numerous drugs and relevant pharmaceutical substances. Development of an easily accessed, efficient, stable, and low cost catalyst is an attractive area of research in such kind of organic synthesis. This review highlights the remarkable and recent achievements made recently in the synthesis and use of palladium(II) complexes catalysts, that are based on heterocycles as ligands in their constitution, in the Suzuki-Miyaura cross-coupling.

Sulfinate derivatives: dual and versatile partners in organic synthesis

2014 ◽  
Vol 12 (48) ◽  
pp. 9743-9759 ◽  
Author(s):  
Jessy Aziz ◽  
Samir Messaoudi ◽  
Mouad Alami ◽  
Abdallah Hamze
Keyword(s):  
Organic Synthesis ◽  
Recent Advances ◽  
Sulfinic Acids

Recent advances in the preparation and synthetic uses of sulfinic acids and their derivatives are highlighted in this review. They are used as versatile partners in sulfonylative and desulfitative reactions.

Recent advances in the application of tetrabromomethane in organic synthesis

2021 ◽  
Author(s):  
Tharmalingam Punniyamurthy ◽  
Sandeep Kumar ◽  
Tariq A Shah
Keyword(s):  
Natural Products ◽  
Organic Synthesis ◽  
Value Added ◽  
Recent Advances

Tetrabromomethane (CBr4) is a multitasking agent and can be utilized as a catalyst, mediator and reagent in the synthesis of value added chemicals, natural products, pharmaceuticals and materials. CBr4, as...

Recent advances in catalytic synthesis of medium-ring lactones and their derivatives

2021 ◽  
Author(s):  
Zi-Kui Liu ◽  
Yang Gao ◽  
Xiao-Qiang Hu
Keyword(s):  
Natural Products ◽  
Organic Synthesis ◽  
Catalytic Synthesis ◽  
Efficient Synthesis ◽  
Recent Advances ◽  
Medium Ring

Medium-sized lactones are widely found in various natural products and pharmaceuticals. However, the efficient synthesis of these sturtures remains as a challenging topic in organic synthesis due to the disfavored...

Enantioselective Syntheses of Flavonoid Diels-Alder Natural Products: A Review

2018 ◽  
Vol 15 (2) ◽  
pp. 221-229 ◽  
Author(s):  
Shah Bakhtiar Nasir ◽  
Noorsaadah Abd Rahman ◽  
Chin Fei Chee
Keyword(s):  
Natural Products ◽  
Organic Synthesis ◽  
Lewis Acid ◽  
Alder Reaction ◽  
Diels Alder ◽  
Enantioselective Synthesis ◽  
Chiral Ligand ◽  
Asymmetric Syntheses ◽  
Diels Alder Reaction ◽  
Enantioselective Syntheses

Background: The Diels-Alder reaction has been widely utilised in the syntheses of biologically important natural products over the years and continues to greatly impact modern synthetic methodology. Recent discovery of chiral organocatalysts, auxiliaries and ligands in organic synthesis has paved the way for their application in Diels-Alder chemistry with the goal to improve efficiency as well as stereochemistry. Objective: The review focuses on asymmetric syntheses of flavonoid Diels-Alder natural products that utilize chiral ligand-Lewis acid complexes through various illustrative examples. Conclusion: It is clear from the review that a significant amount of research has been done investigating various types of catalysts and chiral ligand-Lewis acid complexes for the enantioselective synthesis of flavonoid Diels-Alder natural products. The results have demonstrated improved yield and enantioselectivity. Much emphasis has been placed on the synthesis but important mechanistic work aimed at understanding the enantioselectivity has also been discussed.

Recent Advances in P2O5 Catalyzed Organic Synthesis

2012 ◽  
Vol 1 (3) ◽  
pp. 155-163 ◽  
Author(s):  
Maya Shankar Singh
Keyword(s):  
Organic Synthesis ◽  
Recent Advances

Recent advances in the Silver catalysed synthesis of furan and its applications

2020 ◽  
Vol 09 ◽  
Author(s):  
C M A Afsina ◽  
Mohan Neetha ◽  
Thaipparambil Aneeja ◽  
Gopinathan Anilkumar
Keyword(s):  
Organic Synthesis ◽  
Oxidation Potential ◽  
Silver Complexes ◽  
Wide Spread ◽  
Silver Catalysts ◽  
Recent Advances ◽  
High Oxidation ◽  
Furan Moiety ◽  
Anti Fungal ◽  
Fragrance Compounds

: Furan and its derivatives find wide-spread application as pharmaceuticals, pigments, dyes, brighteners, flavour & fragrance compounds and insecticides. They also exhibit anti-hyperglycemic, analgesic, anti-inflammatory, antibacterial, anti-fungal and anti-tumour activities. Silver catalysts are nowadays commonly used in organic synthesis due to the high oxidation potential and versatile nature of silver complexes. In this review, we summarise the recent advances in the synthesis and applications of furan moiety using silver catalysis and covers literature from 2015-2020.

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