Achieving challenging coupling with gold redox catalysis
Achieving challenging coupling with gold redox catalysis
批准号:
9156461
负责人:
Xiaodong Shi
金额:
$31.4万
依托单位国家:
美国
项目类别:
财政年份:
2016
资助国家:
美国
项目状态:
已结题
起止时间:
2016-07-15 至 2021-06-30
关键词:
AcetyleneAddressAlkynesAminesBiologicalCatalysisChemistryComplexCouplingDevelopmentDiseaseEnsureEnvironmentFloridaFutureGoalsGoldHigh Pressure Liquid ChromatographyHomoInstitutesInvestigationLeadLigandsMass FragmentographyMedical ResearchMetalsMethodologyMethodsModificationMolecularNitrogenOxidantsOxidation-ReductionPharmaceutical ChemistryPharmacologic SubstancePostdoctoral FellowProcessPropertyReactionReagentResearchResearch InfrastructureRouteSchemeSite-Directed MutagenesisStagingStructureStudentsSystemTrainingTransition ElementsUniversitiesWest Virginiaabstractingaryl halidebasebiological preparationbiological researchcatalystcostdesigndrug candidatefunctional groupgraduate studentimprovedinnovationinterestnovelnovel strategiesoperationprogramsresearch and developmentsuccessundergraduate student
中文摘要
项目总结/摘要
过渡金属催化的交叉偶联反应是目前研究的重要策略之一,
复杂分子合成 这种方法已广泛应用于医学和
候选药物制备和生物靶点的生物学研究
修饰/功能化。 尽管在过去二十年中取得了巨大的成功,
仍有一些挑战需要解决。 的三个问题
在本提案中,我们希望解决的耦合类型转换是A)
当涉及炔时控制交叉偶联的选择性,B)增加
通过催化偶联过程形成大的大环的效率,和C)
扩大了偶联配偶体的选择,如胺和F-12,作为相容的
用于耦合类型转换的官能团。 的总体方案,
建议的研究是配体辅助的金氧化还原催化,最近从
私家侦探的实验室。 与传统的偶联方法相比,金化学提供了
一些独特的反应性,包括快速还原消除,选择性形成金
乙炔化物和配体-N通过氮挤出辅助重氮活化。 这些
房地产为解决一些长期存在的挑战提供了新的机会,
金属催化的交叉偶联。 这项研究是创新的,因为它
重点关注最近开发的Au(I)/Au(III)新反应性的影响
氧化还原催化对具有挑战性的C-CH 2C和C-CH 2X偶联转化。 这些
研究也很重要,将促进制药和医药
通过提供新的策略来实现复杂分子的合成。
英文摘要
Project Summary/Abstract
Transition metal catalyzed cross coupling is one of the most important strategies in
complex molecule synthesis. This approach has been widely applied in medicinal and
biological research for drug candidate preparation and for biological target
modification/functionalization. Despite the great successes during the last two decades,
there are remaining challenges that need to be addressed. The three problems in
coupling type transformations that we would like to address in this proposal are A)
controlling selectivity on cross coupling while alkynes are involved, B) increasing the
efficiency of forming large macrocycles through catalytic coupling process, and C)
extending the choice of coupling partners, such as amine and F-, as compatible
functional groups for coupling type transformations. The general scheme of the
proposed research is the ligand-assisted gold redox catalysis, recently developed from
PI’s lab. Compared with the conventional coupling methods, gold chemistry offers
some unique reactivity, including fast reductive elimination, selective formation of gold
acetylide and ligand-assisted diazonium activation through nitrogen extrusion. These
properties provide new opportunities to address some of the long-existing challenges in
metal catalyzed cross coupling. The proposed research is innovative because it
focuses on the impact of new reactivity offered by this recently developed Au(I)/Au(III)
redox catalysis toward challenging C-C and C-X coupling transformations. These
investigations are also significant and will advance pharmaceutical and medicinal
research by providing new strategies to achieve complex molecule synthesis.
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会议论文
Developing Asymmetric Gold Redox Catalysis for Challenging Chemical Transformations
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批准号:10993890
-
项目类别:
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资助金额:$32.56万
-
财政年份:2022
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负责人:Xiaodong Shi
-
依托单位:
Developing Asymmetric Gold Redox Catalysis for Challenging Chemical Transformations
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批准号:10686074
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项目类别:
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资助金额:$1.13万
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财政年份:2022
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负责人:Xiaodong Shi
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依托单位:
Achieving challenging coupling with gold redox catalysis
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批准号:9976337
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项目类别:
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资助金额:$31.4万
-
财政年份:2016
-
负责人:Xiaodong Shi
-
依托单位:
Achieving challenging coupling with gold redox catalysis
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批准号:9315845
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项目类别:
-
资助金额:$31.4万
-
财政年份:2016
-
负责人:Xiaodong Shi
-
依托单位:
Achieving challenging coupling with gold redox catalysis
-
批准号:9768490
-
项目类别:
-
资助金额:$31.4万
-
财政年份:2016
-
负责人:Xiaodong Shi
-
依托单位:
海外基金