The pursuit of an expedient route to a proprietary agrochemical intermediate based on chemoselective metal-catalyzed alpha arylation

工业规模的农用化学品生产要求目标化合物以高效、经济和可持续的方式合成。拟议的研究项目旨在解决工业合作伙伴Bayer AG Crop Science正在开发的专有农用化学品的合成步骤中存在的问题。我们设想，金属催化剂的使用可以使该合成步骤更有效，通过在称为金属催化的α芳基化交叉偶联的过程中在反应分子中的碳原子之间形成键。考虑到所需的感兴趣的反应提出了许多挑战，包括与化学选择性和官能团耐受性相关的问题，将需要对反应条件和后续优化进行广泛的调查。申请人在开发可持续的金属催化交叉偶联方案（包括α-芳基化化学）方面具有成熟的专业知识，非常适合解决该化学问题。在此合作项目过程中开发的合成方案将由拜耳作物科学公司的工艺科学家直接开发，包括有关放大的检查。拜耳作物科学加拿大公司正在加拿大西部的一系列农业应用中测试本拟议项目中调查的农用化学品类型，最终目标是建立更可持续的农业实践和自然资源利用，以造福所有加拿大人。

The production of agrochemicals on industrial scales requires that the target compound be synthesized in an efficient, cost-effective, and sustainable manner. The proposed research project seeks to address a problematic synthetic step in the making of a proprietary agrochemical under development by the industrial partner, Bayer AG Crop Science. We envision that the use of a metal catalyst may render this synthetic step more efficient, by enabling the formation of a bond between carbon atoms in the reacting molecules in a process called metal-catalyzed alpha arylation cross-coupling. Given that the desired reaction of interest presents a number of challenges, including issues related to chemoselectivity and functional group tolerance, a broad survey of reaction conditions and subsequent optimization will be required. The applicant has well-established expertise in the development of sustainable metal-catalyzed cross-coupling protocols, including in alpha arylation chemistry, and is well-suited to addressing this chemistry. Synthetic protocols developed in the course of this collaborative project will be exploited directly by process scientists at Bayer AG Crop Science, including examination regarding up-scaling. Agrochemicals of the type under investigation in this proposed project are undergoing testing by Bayer Crop Science Canada in a range of farming applications in western Canada, with the ultimate goal of establishing more sustainable agriculture practices and natural resources usage, to the benefit of all Canadians.