Chemistry of C  C Bond Formation Reactions Used in Biomass Upgrading: Reaction Mechanisms, Site Requirements, and Catalytic Materials

Author(s):  
Tuong V. Bui ◽  
Nhung Duong ◽  
Felipe Anaya ◽  
Duong Ngo ◽  
Gap Warakunwit ◽  
...  
2019 ◽  
Vol 16 (6) ◽  
pp. 578-588 ◽  
Author(s):  
Kamal Usef Sadek ◽  
Ramadan Ahmed Mekheimer ◽  
Mohamed Abd-Elmonem

Crinnolines can serve as unique and versatile class of heterocycles especially in fields related to synthetic and pharmaceutical chemistry owing to their potent biological activities. They possess diversity of pharmaceutical activities as anticancer, antibacterial, anti-inflammatory, anti-allergic as well as anti-hypertensive activities. Since the first synthesis of cinnoline by Richter (1883) numerous protocols for their synthesis have been developed utilizing arenediazonium salts, aryl hydrazines and arylhydhydrazones precursors. Recently metal catalyzed C-C and C-N bond formation reactions have emerged as efficient tools for synthesis of cinnoline derivatives. This review aims to focus on the recent synthetic routes used for the synthesis of cinnoline derivatives. An effort has been carried out to provide an overview of practical methods for preparing cinnolines. Furthermore the reaction mechanisms have been described in brief.


2020 ◽  
Vol 23 (28) ◽  
pp. 3206-3225 ◽  
Author(s):  
Amol D. Sonawane ◽  
Mamoru Koketsu

: Over the last decades, many methods have been reported for the synthesis of selenium- heterocyclic scaffolds because of their interesting reactivities and applications in the medicinal as well as in the material chemistry. This review describes the recent numerous useful methodologies on C-Se bond formation reactions which were basically carried out at low and room temperature.


2020 ◽  
Vol 24 (20) ◽  
pp. 2293-2340
Author(s):  
Firdoos Ahmad Sofi ◽  
Prasad V. Bharatam

C-N bond formation is a particularly important step in the generation of many biologically relevant heterocyclic molecules. Several methods have been reported for this purpose over the past few decades. Well-known named reactions like Ullmann-Goldberg coupling, Buchwald-Hartwig coupling and Chan-Lam coupling are associated with the C-N bond formation reactions. Several reviews covering this topic have already been published. However, no comprehensive review covering the synthesis of drugs/ lead compounds using the C-N bond formation reactions was reported. In this review, we cover many modern methods of the C-N bond formation reactions, with special emphasis on metal-free and green chemistry methods. We also report specific strategies adopted for the synthesis of drugs, which involve the C-N bond formation reactions. Examples include anti-cancer, antidepressant, anti-inflammatory, anti-atherosclerotic, anti-histaminic, antibiotics, antibacterial, anti-rheumatic, antiepileptic and anti-diabetic agents. Many recently developed lead compounds generated using the C-N bond formation reactions are also covered in this review. Examples include MAP kinase inhibitors, TRKs inhibitors, Polo-like Kinase inhibitors and MPS1 inhibitors.


2016 ◽  
Vol 45 (12) ◽  
pp. 5196-5209 ◽  
Author(s):  
Katam Srinivas ◽  
Arruri Sathyanarayana ◽  
Chatla Naga Babu ◽  
Ganesan Prabusankar

Thirteen new bismuth(iii) dichalcogenone derivatives with diversified structural motifs were successfully isolated and used as potential catalysts for the synthesis of triaryl- or triheteroarylmethanes.


1994 ◽  
Vol 23 (2) ◽  
pp. 259-262 ◽  
Author(s):  
Tamotsu Takahashi ◽  
Denis Y. Kondakov ◽  
Noriyuki Suzuki

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