Multifunctional Borylenes for Metal- and Boron-Mediated Reactions

用于金属和硼介导反应的多功能硼烯

• 批准号: RGPIN-2021-03056
• 负责人: Pranckevicius, Conor
• 金额: $ 2.11万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=761672
• 关键词: Multifunctional; Borylenes; Metal; Boron; Mediated

As we progress into the 21st century, our society has become increasingly cognizant of our growing energy needs, our dwindling supply of traditional resources, and the global environmental challenges created by anthropogenic climate change. To address these issues, we must develop sustainable technology that emphasizes environmental stewardship. Inorganic chemistry is in a uniquely powerful position to make meaningful global impacts, as chemical industry is responsible for approximately 20% of all industrial energy consumption in North America, and around 90% of all chemical processes utilize catalysts to improve their energy efficiency. Recent successes, including the discovery of stable carbenes heralded the development of highly efficient carbene-supported inorganic catalysts for olefin metathesis and cross-coupling reactions, which served to drastically reduce the energy input required to access these important chemical intermediates. Additionally, the development of main group catalysis has provided the first alternatives to the use of rare transition metal catalysts in many reactions, providing the a new path towards sustainable resource use. Despite these successes, there is still much work to be done to transition our society toward dependence on sustainable resources and responsible management of our finite ones. To tackle these issues, my research program is divided into two streams that are unified under the concept of applying recent fundamental advances in main group chemistry to the catalytic and materials sciences, with a focus on the emerging applications of neutral boron(I) molecules known as borylenes. Our first stream will target borylene ligands for transition metals (TMs) that offer an unprecedented level of electron density to a TM center. This property makes them ideal candidates for the construction of new energy-saving catalysts for use in many industrially important reactions. A second stream will focus on the metal-free reactivity of borylenes, where the concepts learned in borylene and main group chemistry are united to produce new catalytic cycles involving challenging transformations such as C-H activation and the functionalization of molecular nitrogen that are based on earth abundant elements. Another application involves the involves the use of metal-free borylenes to generate new libraries of electronically flexible conjugated materials with applications as energy-saving electrode materials within rechargeable batteries. My research projects specifically target collaboration with Canadian industrial partners, and will strengthen Canada's role in in the development of environmentally friendly and sustainable technology to address some of the most pertinent challenges currently facing society. Students engaged in these multidisciplinary projects will be gain both the technical and communication skills that will allow them to take on leadership roles in green chemistry as they begin their independent careers.

随着我们进入21世纪的发展，我们的社会已经越来越认识到我们不断增长的能源需求，我们的传统资源供应减少以及人为气候变化所带来的全球环境挑战。为了解决这些问题，我们必须开发强调环境管理的可持续技术。由于化学工业约占北美所有工业能源消耗的20％，并且所有化学过程中约有90％利用催化剂来提高其能源效率，因此无机化学具有产生有意义的全球影响的独特地位，可以产生有意义的全球影响。最近的成功，包括稳定的碳烯，预示着高效的碳纤维支持的无机催化剂，用于烯烃元理解和交叉偶联反应，这大大减少了访问这些重要化学中介物所需的能量输入所需的能量输入。此外，主要组催化的发展为在许多反应中使用稀有过渡金属催化剂的使用提供了第一个替代方法，从而为可持续资源使用提供了新的途径。尽管取得了这些成功，但仍有很多工作要做，将我们的社会转变为依赖可持续资源和对我们有限的资源的负责管理。 为了解决这些问题，我的研究计划分为两个流，这些流是根据将主要组化学中的最新基本进步统一到催化和材料科学的概念，重点是中性硼（I）分子的新兴应用。我们的第一个流将靶向borylene配体用于过渡金属（TMS），这些金属（TMS）为TM中心提供前所未有的电子密度水平。该特性使其成为建造新的节能催化剂的理想候选者，以用于许多工业重要的反应。第二个流将重点放在borylenes的无金属反应性上，其中在Borylene和主要组化学中学到的概念团结起来，产生新的催化周期，这些催化循环涉及C-H激活以及基于地球丰富元素的分子氮的功能。另一种应用涉及使用无金属的陶瓷来生成电子柔性共轭材料的新库，并用作可充电电池内的节能电极材料。 我的研究项目专门针对与加拿大工业合作伙伴的合作，并将加强加拿大在开发环保和可持续技术中的作用，以应对当前社会面临的一些最相关的挑战。从事这些多学科项目的学生将获得技术和沟通技巧，这将使他们在开始独立职业时扮演绿色化学领域的领导角色。