Alkene metathesis: new developments in catalyst design and application

Pariya, Chandi; Jayaprakash, K. N.; Sarkar, Amitabha

doi:10.1016/s0010-8545(97)00066-0

Cited by 85 publications

(34 citation statements)

References 317 publications

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“…Given the successful application of ring-closing metathesis (RCM) in macrocycle formation, [1,68,69] Fürstner and co-workers investigated the possibility of closing acyclic diynes to generate large cyclics by using alkyne metathesis. [3] In their early studies, they found that efficient preparations of functionalized macrocycles were achieved by RCAM, catalyzed by tungsten alkylidyne 9 at 80 8C under high dilution in either trichlorobenzene, chlorobenzene or toluene.…”

Section: Ring-closing Alkyne Metathesis (Rcam)mentioning

confidence: 99%

Alkyne Metathesis: Catalysts and Synthetic Applications

2007

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There has been rapid progress and growing interest in alkyne metathesis within the past decade. The availability of highly active catalysts as well as their applications in both organic synthesis and polymer chemistry has served to motivate the advancement of this field. In this article, the development of several different metathesis catalysts, including two heterogeneous ones, are reviewed with an emphasis on comparing strengths and weaknesses. In Section 4, the applications of alkyne metathesis to synthesis of natural products, conjugated polymers as well as shape-persistent macrocycles are discussed. In the last section, a comparison of alkyne metathesis to the well established alkene metathesis is given. Developing an alkyne metathesis catalyst with both high reactivity and robustness to air and moisture remains an unsolved problem of this important and useful reaction.

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Section: Ring-closing Alkyne Metathesis (Rcam)mentioning

confidence: 99%

Alkyne Metathesis: Catalysts and Synthetic Applications

2007

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“…Olefin metathesis has become a cornerstone of synthetic organic and polymer chemistry [1][2][3][4][5][6][7][8][9]. The accomplishments that have been made during the last 30 years are impressive; the impact on industry is steadily growing.…”

Section: Introductionmentioning

confidence: 99%

Molybdenum imido alkylidene and tungsten oxo alkylidene N-heterocyclic carbene complexes for olefin metathesis

2015

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This mini-review summarizes the latest accomplishments with group 6 metal alkylidene-Nheterocyclic carbene complexes (metal = Mo, W) for use in olefin metathesis. Both the fundamentals and the unique features of this novel class of olefin metathesis catalysts are presented. Also, their use and performance in ring-closing metathesis, cross metathesis, homometathesis, and selfmetathesis reactions as well as in ring-opening metathesis polymerization and cyclopolymerization is outlined. Graphical abstract Mo N OTf TfO N N W O Ph O N N Mes Mes BArFPh Ph

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“…A metátese de olefinas sugere uma rota para a obtenção de novas moléculas insaturadas, cujo preparo por qualquer outro método é freqüentemente muito difícil [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] . Como exemplos, podem ser citados a civetona, importante constituinte de diversos perfumes, e o Norsorex ® (Figura 1), que tem aplicações como material antivibrante para montagem de máquinas, isolante acústico ou absorvente de óleos derivados do petróleo.…”

Section: Introductionunclassified

“…e na química de polímeros contendo insaturações e grupos funcionais (polímeros condutores, polímeros solúveis em água, armazenagem/ transferência de energia, co-polímeros, novos materiais, etc.) [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] Nesta divulgação, procurou-se enfatizar os trabalhos de Grubbs dada a relevância de seus catalisadores 3,4 , e apresentar a contribuição de pesquisadores brasileiros na busca de novos sistemas catalíticos usando compostos de coordenação de metais de transição . Faz-se uma abordagem sucinta sobre metátese de olefinas, mas não é de interesse apresentar um levantamento bibliográfico da literatura.…”

Section: Introductionunclassified

“…Faz-se uma abordagem sucinta sobre metátese de olefinas, mas não é de interesse apresentar um levantamento bibliográfico da literatura. Excelentes trabalhos de revisão têm sido publicados com este objetivo [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18] , inclusive na língua portuguesa [23][24][25][26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41] . Assim, recomenda-se aos leitores que consultem a literatura e que fiquem atentos às novidades, dado o número crescente de trabalhos que vêm sendo divulgados.…”

Section: Introductionunclassified

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