Recent Progress in Transition Metal-Catalyzed Addition Reactions of H–P(O) Compounds with Unsaturated Carbon Linkages

2011 ◽  
pp. 167-201 ◽  
Author(s):  
Masato Tanaka
Keyword(s):  
Transition Metal ◽  
Recent Progress ◽  
Addition Reactions ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Amide-Directed Reactions of Small Carbocycles

2021 ◽  
Vol 25 ◽  
Author(s):  
Pavel M. Yamanushkin ◽  
Marina Rubina ◽  
Michael Rubin
Keyword(s):  
Transition Metal ◽  
Transition Metals ◽  
Nucleophilic Addition ◽  
Addition Reactions ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

: The topic of this review is the amide-directed functionalization of strained carbocycles — specifically, unsaturated or saturated three- and four-membered rings. The following approaches are discussed: a) directed carbometallation and hydrometallation of cyclopropenes catalyzed by transition metals; b) directed metal-templated nucleophilic addition reactions; c) directed C-H functionalization, including transition metal-catalyzed C-H-activation reactions; and d) directed radical additions.

scholarly journals Synthesis of Polyhedral Borane Cluster Fused Heterocycles via Transition Metal Catalyzed B-H Activation

Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 391 ◽  
Author(s):  
Ke Cao ◽  
Cai-Yan Zhang ◽  
Tao-Tao Xu ◽  
Ji Wu ◽  
Xin-Yu Wen ◽  
...  
Keyword(s):  
Transition Metal ◽  
Recent Progress ◽  
Building Blocks ◽  
Bioactive Natural Products ◽  
Fused Heterocycles ◽  
Selective Functionalization ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed ◽  
Photoluminescent Materials ◽  
Borane Cluster

Aromatic heterocycles are ubiquitous building blocks in bioactive natural products, pharmaceutical and agrochemical industries. Accordingly, the carborane-fused heterocycles would be potential candidates in drug discovery, nanomaterials, metallacarboranes, as well as photoluminescent materials. In recent years, the transition metal catalyzed B-H activation has been proved to be an effective protocol for selective functionalization of B-H bond of o-carboranes, which has been further extended for the synthesis of polyhedral borane cluster-fused heterocycles via cascade B-H functionalization/annulation process. This article summarizes the recent progress in construction of polyhedral borane cluster-fused heterocycles via B-H activation.

Recent progress in transition-metal-catalyzed hydrocyanation of nonpolar alkenes and alkynes

2020 ◽  
Vol 18 (3) ◽  
pp. 391-399 ◽  
Author(s):  
Hongru Zhang ◽  
Xin Su ◽  
Kaiwu Dong
Keyword(s):  
Transition Metal ◽  
Recent Progress ◽  
Building Blocks ◽  
Powerful Method ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Hydrocyanation is a powerful method for the preparation of nitriles which are versatile building blocks for the synthesis of amines, acids and amides.

Chromium-Catalyzed Cross-Couplings and Related Reactions

Synthesis ◽  
2019 ◽  
Vol 51 (10) ◽  
pp. 2100-2106 ◽  
Author(s):  
Jie Li ◽  
Paul Knochel
Keyword(s):  
Transition Metal ◽  
Recent Progress ◽  
Short Review ◽  
High Price ◽  
Nickel Catalysis ◽  
Catalytic Reactivity ◽  
Transition Metal Catalyzed ◽  
Low Valent ◽  
Metal Catalyzed ◽  
Remarkable Progress

Transition-metal-catalyzed cross-couplings have been recognized as a powerful tool for sustainable syntheses. Despite the fact that remarkable progress was achieved by palladium and nickel catalysis, the high price and toxicity still remained a drawback. Recently, naturally more abundant and less toxic low-valent chromium salts, such as Cr(II) and Cr(III) chlorides, displayed notable unique catalytic reactivity. Thus, recent progress in the field of chromium-catalyzed cross-couplings and related reactions are highlighted in the present short review until December­ 2018.1 Introduction and Early Chromium-Mediated Reactions2 Chromium-Catalyzed Cross-Couplings and Related Reactions3 Conclusion

Transition-Metal-Catalyzed Synthesis of Organophosphorus Compounds Involving P–P Bond Cleavage

Synthesis ◽  
2020 ◽  
Vol 52 (19) ◽  
pp. 2795-2806 ◽  
Author(s):  
Mieko Arisawa
Keyword(s):  
Transition Metal ◽  
Organophosphorus Compounds ◽  
Bond Cleavage ◽  
Palladium Complexes ◽  
Addition Reactions ◽  
Phosphonium Salts ◽  
Substitution Reactions ◽  
Sulfonic Acids ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

Organophosphorus compounds are used as drugs, pesticides, detergents, food additives, flame retardants, synthetic reagents, and catalysts, and their efficient synthesis is an important task in organic synthesis. To synthesize novel functional organophosphorus compounds, transition-metal-catalyzed methods have been developed, which were previously considered difficult because of the strong bonding that occurs between transition metals and phosphorus. Addition reactions of triphenylphosphine and sulfonic acids to unsaturated compounds in the presence of a rhodium or palladium catalyst lead to phosphonium salts, in direct contrast to the conventional synthesis involving substitution reactions of organohalogen compounds. Rhodium and palladium complexes catalyze the cleavage of P–P bonds in diphosphines and polyphosphines and can transfer organophosphorus groups to various organic compounds. Subsequent substitution and addition reactions proceed effectively, without using a base, to provide various novel organophosphorus compounds.1 Introduction2 Transition-Metal-Catalyzed Synthesis of Phosphonium Salts by Addition Reactions of Triphenylphosphine and Sulfonic Acids3 Rhodium-Catalyzed P–P Bond Cleavage and Exchange Reactions4 Transition-Metal-Catalyzed Substitution Reactions Using Diphosphines4.1 Reactions Involving Substitution of a Phosphorus Group by P–P Bond Cleavage4.2 Related Substitution Reactions of Organophosphorus Compounds4.3 Substitution Reactions of Acid Fluorides Involving P–P Bond Cleavage of Diphosphines5 Rhodium-Catalyzed P–P Bond Cleavage and Addition Reactions6 Rhodium-Catalyzed P–P Bond Cleavage and Insertion Reactions Using Polyphosphines7 Conclusions

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