Part1. Chiral Syn-Aldol Reaction Studies of Chiral γ- Benzyloxy Subsituted Vinylogous Urethanepart2. Chiral [2,3]-Wittig rearrangement Studies of Chiralγ- Allyloxy Subsituted Vinylogous Urethane
碩士 === 朝陽科技大學 === 應用化學系碩士班 === 92 === 1.Chiral Syn-Aldol Reaction Studies of Chiral γ-Benzyloxy Subsituted Vinylogous Urethane Chiral γ-benzyloxy subsituted vinylogous urethane 1 was deprotonated and reacted with aldehyde to form syn-aldol adduct, the selectivity of this product was analyzed usin...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2004
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| Online Access: | http://ndltd.ncl.edu.tw/handle/chmeck |
| Summary: | 碩士 === 朝陽科技大學 === 應用化學系碩士班 === 92 === 1.Chiral Syn-Aldol Reaction Studies of Chiral γ-Benzyloxy Subsituted Vinylogous Urethane
Chiral γ-benzyloxy subsituted vinylogous urethane 1 was deprotonated and reacted with aldehyde to form syn-aldol adduct, the selectivity of this product was analyzed using chiral column to determine their enantio- selectivity and diastereoselectivity.
2.Chiral [2,3]-Wittig rearrangement Reaction Studies of Chiral γ-Allyloxy Subsituted Vinylogous Urethane
Dienolates of various chiral γ-allyloxy subsituted vinylogous urethane undergo a [2,3]-Wittig rearrangement to generate various 5-alkenyl-4- pyrrolidine-1-yl-5H-furan-2-one type compounds. The study of the conditions to afford superior enantioselectivity and diastereoselectivity was conducted accordingly.
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