Asymmetric Synthesis of (+)-2-epi-α-Allokainic Acid Employing Ketopinic Amide as Chiral Auxiliary
碩士 === 國立清華大學 === 化學系 === 103 === This thesis deals with the application of camphor-derived ketopinic amide 139 as a chiral auxiliary in the synthesis of pyrrolidine alkaloids. Asymmetric 1,4-addition of chiral imine 116, derived from glycinate 142 and ketopinic amide 139, with α,β-unsaturated ester...
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ndltd-TW-103NTHU50651242019-05-15T22:18:04Z http://ndltd.ncl.edu.tw/handle/g56v6u Asymmetric Synthesis of (+)-2-epi-α-Allokainic Acid Employing Ketopinic Amide as Chiral Auxiliary 樟腦醯胺為掌性輔助基應用於 (+)-2-epi-α-Allokainic Acid 之不對稱合成研究 Liao, De Jhong 廖得仲 碩士 國立清華大學 化學系 103 This thesis deals with the application of camphor-derived ketopinic amide 139 as a chiral auxiliary in the synthesis of pyrrolidine alkaloids. Asymmetric 1,4-addition of chiral imine 116, derived from glycinate 142 and ketopinic amide 139, with α,β-unsaturated ester 142 afforded adduct 130 as a single isomer. Transamination of compound 130, followed by cyclization provided lactam 147. The construction of C4 stereogenic center was achieved by the aldol reaction of boc-protected lactam 147 with acetone. Further functional group transformation led to the synthesis of (+)-2- epi-α-Allokainic acid 128. Uang, Biing Jiun 汪炳鈞 2015 學位論文 ; thesis 87 zh-TW |
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碩士 === 國立清華大學 === 化學系 === 103 === This thesis deals with the application of camphor-derived ketopinic amide 139 as a chiral auxiliary in the synthesis of pyrrolidine alkaloids. Asymmetric 1,4-addition of chiral imine 116, derived from glycinate 142 and ketopinic amide 139, with α,β-unsaturated ester 142 afforded adduct 130 as a single isomer. Transamination of compound 130, followed by cyclization provided lactam 147. The construction of C4 stereogenic center was achieved by the aldol reaction of boc-protected lactam 147 with acetone. Further functional group transformation led to the synthesis of (+)-2- epi-α-Allokainic acid 128.
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Uang, Biing Jiun |
author_facet |
Uang, Biing Jiun Liao, De Jhong 廖得仲 |
author |
Liao, De Jhong 廖得仲 |
spellingShingle |
Liao, De Jhong 廖得仲 Asymmetric Synthesis of (+)-2-epi-α-Allokainic Acid Employing Ketopinic Amide as Chiral Auxiliary |
author_sort |
Liao, De Jhong |
title |
Asymmetric Synthesis of (+)-2-epi-α-Allokainic Acid Employing Ketopinic Amide as Chiral Auxiliary |
title_short |
Asymmetric Synthesis of (+)-2-epi-α-Allokainic Acid Employing Ketopinic Amide as Chiral Auxiliary |
title_full |
Asymmetric Synthesis of (+)-2-epi-α-Allokainic Acid Employing Ketopinic Amide as Chiral Auxiliary |
title_fullStr |
Asymmetric Synthesis of (+)-2-epi-α-Allokainic Acid Employing Ketopinic Amide as Chiral Auxiliary |
title_full_unstemmed |
Asymmetric Synthesis of (+)-2-epi-α-Allokainic Acid Employing Ketopinic Amide as Chiral Auxiliary |
title_sort |
asymmetric synthesis of (+)-2-epi-α-allokainic acid employing ketopinic amide as chiral auxiliary |
publishDate |
2015 |
url |
http://ndltd.ncl.edu.tw/handle/g56v6u |
work_keys_str_mv |
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