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N-Heterocyclic Carbenes: A Powerful Catalyst for Polymerization n -杂环碳烯:聚合的强力催化剂
Carbene [Working Title] Pub Date : 2022-02-01 DOI: 10.5772/intechopen.102466
Eman A. Ali
{"title":"N-Heterocyclic Carbenes: A Powerful Catalyst for Polymerization","authors":"Eman A. Ali","doi":"10.5772/intechopen.102466","DOIUrl":"https://doi.org/10.5772/intechopen.102466","url":null,"abstract":"As much of the concern is being placed on metal-free polymerization, carbenes are attracting researcher attention. Besides their impact on organic synthesis, they played an integral role in several types of polymerization. This unique class of organocatalyst revives the preparation of polymeric materials that possess functional groups at each carbon atom on the polymer chain, which was hardly reached by conventional methods. This chapter will concern with the contribution of N-heterocyclic carbenes (NHCs) in the preparation of functional polymers from diversified monomers. Also, will discuss the advantages of N-heterocyclic carbenes in some conventional polymerization such as ring-opening and step-growth polymerizations along with the direct zwitterionic polymerization.","PeriodicalId":203321,"journal":{"name":"Carbene [Working Title]","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125440410","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent Development of Carbenes: Synthesis, Structure, Photophysical Properties and Applications 卡贝烯类化合物的合成、结构、光物理性质及应用
Carbene [Working Title] Pub Date : 2022-01-17 DOI: 10.5772/intechopen.101413
Arun K. Manna, Abhineet Verma, Sumit K. Panja, S. Saha
{"title":"Recent Development of Carbenes: Synthesis, Structure, Photophysical Properties and Applications","authors":"Arun K. Manna, Abhineet Verma, Sumit K. Panja, S. Saha","doi":"10.5772/intechopen.101413","DOIUrl":"https://doi.org/10.5772/intechopen.101413","url":null,"abstract":"Carbenes are highly reactive intermediates in organic synthesis. These divalent carbon species are generally transient in nature and cannot be isolated. However, they can form stabile metal complexes. Later on, the development of N-heterocyclic carbene (NHC) and other stable carbene led to the application of these carbon (II) donor ligands in the synthesis of complex natural products, transition metal catalysis, organo-catalysis and several other synthetic methodologies. Here in this short review, we will discuss the brief history of the development of carbenes, synthesis of stable carbenes (NHC in particular), and their applications in natural products synthesis transition metal chemistry/organometallics. In addition to synthesis and application, the chapter will consist of a detailed structural analysis of carbenes and exciting photophysics of this class of compounds. Special emphasis will be given to electronic structure. The role of carbene in the development of luminescent NHC transition metal complexes, the tuning of emission properties as well as their active role as photocatalysts in the reduction of CO2 will also be discussed.","PeriodicalId":203321,"journal":{"name":"Carbene [Working Title]","volume":"396 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126828656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recent Advances in Cooperative N-Heterocyclic Carbene Catalysis 协同n -杂环卡宾催化研究进展
Carbene [Working Title] Pub Date : 2021-11-18 DOI: 10.5772/intechopen.101328
H. Miyabe
{"title":"Recent Advances in Cooperative N-Heterocyclic Carbene Catalysis","authors":"H. Miyabe","doi":"10.5772/intechopen.101328","DOIUrl":"https://doi.org/10.5772/intechopen.101328","url":null,"abstract":"The N-heterocyclic carbenes (NHCs) open the new field of organocatalysis, leading to the dramatic progress on the cooperative NHC catalysis with transition-metal catalysts or photocatalysts.","PeriodicalId":203321,"journal":{"name":"Carbene [Working Title]","volume":"87 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131016373","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Late Transition Metal (LTM)-NHC Catalyzed Transformations of Renewable Chemicals to Fine Chemicals, Fuels, and Intermediates 晚期过渡金属(LTM)-NHC催化可再生化学品向精细化学品、燃料和中间体的转化
Carbene [Working Title] Pub Date : 2021-11-11 DOI: 10.5772/intechopen.101164
Kurra Mohan, B. Hari babu, K. Bala Murali Krishna, K. Vijay, V. Ravi
{"title":"Late Transition Metal (LTM)-NHC Catalyzed Transformations of Renewable Chemicals to Fine Chemicals, Fuels, and Intermediates","authors":"Kurra Mohan, B. Hari babu, K. Bala Murali Krishna, K. Vijay, V. Ravi","doi":"10.5772/intechopen.101164","DOIUrl":"https://doi.org/10.5772/intechopen.101164","url":null,"abstract":"This title of the book chapter deals with the late transition metal-NHC (N-heterocyclic carbene) catalyzed transformations of renewable chemicals, i.e., bio-mass resources (carbohydrates/vegetable oils/natural products) into useful chemicals via oxidation, hydrogenation, dehydration, polymerization, hydrolysis, etc. along with brief introductory notes on late transition metals, carbenes, and renewable chemicals for better understanding to the reader.","PeriodicalId":203321,"journal":{"name":"Carbene [Working Title]","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132862637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Basic Information about Carbenes 卡贝内斯的基本信息
Carbene [Working Title] Pub Date : 2021-10-25 DOI: 10.5772/intechopen.100425
Nuriye Tuna Subasi
{"title":"Basic Information about Carbenes","authors":"Nuriye Tuna Subasi","doi":"10.5772/intechopen.100425","DOIUrl":"https://doi.org/10.5772/intechopen.100425","url":null,"abstract":"In organic chemistry, good knowledge of the chemistry of reactive intermediates is very important in understanding organic chemistry, which has a systematic like mathematics. Having this information, it is possible to predict the reactions and the products to be formed on the reactive intermediates. Otherwise, it becomes impossible to learn organic chemistry, which has a very wide scope. This chapter of the book will be a guide that summarizes the essential information about carbene, one of the important reactive intermediates. It is planned to include the following sub-headings in this chapter: Carbene definition and properties, Nomenclature of carbenes, Structure and reactivity of carbenes, Carbene synthesis, Carbene reactions.","PeriodicalId":203321,"journal":{"name":"Carbene [Working Title]","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116832635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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