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Synthetic Routes to Metal Alkylidene Complexes that Catalyze Olefin Metathesis and the Utilization of [1.1.1]Propellane as a Carbene Precursor
Synthetic Routes to Metal Alkylidene Complexes that Catalyze Olefin Metathesis and the Utilization of [1.1.1]Propellane as a Carbene Precursor
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211150908
- ISBN
- 9798384048510
- DDC
- 540
- 저자명
- George, Gregory.
- 서명/저자
- Synthetic Routes to Metal Alkylidene Complexes that Catalyze Olefin Metathesis and the Utilization of [1.1.1]Propellane as a Carbene Precursor
- 발행사항
- [Sl] : Cornell University, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 202 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
- 주기사항
- Advisor: Wolczanski, Peter.
- 학위논문주기
- Thesis (Ph.D.)--Cornell University, 2024.
- 초록/해제
- 요약Olefin metathesis is a class of reactions utilized in the fine-chemical and commodities industries. Homogenous catalysis of olefin metathesis can be performed by metal alkylidene species, and these compounds have been investigated for decades. In recent years, a focus has been placed on the development of catalysts using metals with lower toxicity and cost when compared to original systems utilizing ruthenium and molybdenum.The purpose of this work is to explore alternative routes towards the generation of metal alkylidene species with the goal of synthesizing first-row transition metal alkylidenes. To achieve this goal, pursuit of novel routes to generation masked alkylidenes was undertaken and new reactive small molecules were considered for use as alkylidene precursors.The study began with the synthesis of a library of PNP chelates of iron featuring various halide and alkyl ligands. The generation of masked alkylidene species through the utilization of a pendant amine group was unsuccessfully targeted by a variety of synthetic routes. [1.1.1]propellane was identified as a carbene precursor capable of generating stable metal alkylidene species with ruthenium, osmium, and vanadium. The reactivity of [1.1.1]propellane was investigated for a wide array of organometallic species and the scope was widened to include other propellane species, namely 1,3-dehydroadamantane. Efforts towards the synthesis of reduced titanium species with the goal of reaction with [1.1.1]propellane led to the identification of a number of interesting complexes and their reactivity was investigated in the final expansion of this work.
- 일반주제명
- Chemistry
- 일반주제명
- Inorganic chemistry
- 일반주제명
- Organic chemistry
- 키워드
- Propellane
- 기타저자
- Cornell University Chemistry and Chemical Biology
- 기본자료저록
- Dissertations Abstracts International. 86-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211150908
■006m o d
■007cr#unu||||||||
■020 ▼a9798384048510
■035 ▼a(MiAaPQ)AAI30243990
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a540
■1001 ▼aGeorge, Gregory.▼0(orcid)0000-0001-5269-3214
■24510▼aSynthetic Routes to Metal Alkylidene Complexes that Catalyze Olefin Metathesis and the Utilization of [1.1.1]Propellane as a Carbene Precursor
■260 ▼a[Sl]▼bCornell University▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a202 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-03, Section: B.
■500 ▼aAdvisor: Wolczanski, Peter.
■5021 ▼aThesis (Ph.D.)--Cornell University, 2024.
■520 ▼aOlefin metathesis is a class of reactions utilized in the fine-chemical and commodities industries. Homogenous catalysis of olefin metathesis can be performed by metal alkylidene species, and these compounds have been investigated for decades. In recent years, a focus has been placed on the development of catalysts using metals with lower toxicity and cost when compared to original systems utilizing ruthenium and molybdenum.The purpose of this work is to explore alternative routes towards the generation of metal alkylidene species with the goal of synthesizing first-row transition metal alkylidenes. To achieve this goal, pursuit of novel routes to generation masked alkylidenes was undertaken and new reactive small molecules were considered for use as alkylidene precursors.The study began with the synthesis of a library of PNP chelates of iron featuring various halide and alkyl ligands. The generation of masked alkylidene species through the utilization of a pendant amine group was unsuccessfully targeted by a variety of synthetic routes. [1.1.1]propellane was identified as a carbene precursor capable of generating stable metal alkylidene species with ruthenium, osmium, and vanadium. The reactivity of [1.1.1]propellane was investigated for a wide array of organometallic species and the scope was widened to include other propellane species, namely 1,3-dehydroadamantane. Efforts towards the synthesis of reduced titanium species with the goal of reaction with [1.1.1]propellane led to the identification of a number of interesting complexes and their reactivity was investigated in the final expansion of this work.
■590 ▼aSchool code: 0058.
■650 4▼aChemistry
■650 4▼aInorganic chemistry
■650 4▼aOrganic chemistry
■653 ▼aOlefin metathesis
■653 ▼aPropellane
■653 ▼aHomogenous catalysis
■690 ▼a0485
■690 ▼a0488
■690 ▼a0490
■71020▼aCornell University▼bChemistry and Chemical Biology.
■7730 ▼tDissertations Abstracts International▼g86-03B.
■790 ▼a0058
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17160106▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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