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理學院
化學系
學位論文
學位論文
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http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/73899
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search.filters.author.Chung, Yi-Ting
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search.filters.author.鍾宜庭
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search.filters.subject.arylboronic ester
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search.filters.subject.asymmetric cascade cyclization
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search.filters.subject.chiral bicyclo[2.2.1]diene ligands
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search.filters.subject.chiral dihydronaphthalenamine derivatives
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search.filters.subject.enantioselective
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一價銠金屬催化具高鏡像選擇性之不對稱串聯反應:合成掌性二氫萘胺
(
2023
)
鍾宜庭
;
Chung, Yi-Ting
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本論文敘述使用一價銠金屬與掌性雙環[2.2.1]雙烯配體L6a所形成的催化劑,催化𝛽-位具有不同取代基的酯化合物54與不同乙腈芳基硼酯24,進行不對稱串聯合環反應。在最優化條件下,生成一系列具有二氫萘胺結構之環化產物55,共有29個例子,具有最高79%的產率與高達99%的鏡像超越值。此外,以鈀金屬對乙醯基產物58aa的亞胺雙鍵進行氫化反應,可生成具有連續三個掌性中心的產物71,產率、鏡像超越值以及非鏡像異構物比例皆有良好的表現(95% yield, 96% ee, d.r.> 20:1)。
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