Research on CO2 incorporation reactions for synthetic organic chemistry
| Project/Area Number |
23350047
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Synthetic chemistry
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| Research Institution | Keio University |
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Principal Investigator |
YAMADA Tohru 慶應義塾大学, 理工学部, 教授 (40296752)
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| Project Period (FY) |
2011-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥19,240,000 (Direct Cost: ¥14,800,000、Indirect Cost: ¥4,440,000)
Fiscal Year 2013: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2011: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
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| Keywords | 合成化学 / 触媒・化学プロセス / 二酸化炭素 / 廃棄物再資源化 |
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| Outline of Final Research Achievements |
A silver/DBU catalyst system was developed for the effective synthesis of cyclic carbonate from the reaction of CO2 with propargylic alcohols in high yields under mild conditions. We found that the catalytic amount of silver benzoate with MTBD was effective catalytic system and the corresponding lactone derivatives were obtained in high yields. It was found that a silver catalyst successfully promoted the incorporation of CO2 into o-alkynylanilines to afford the corresponding benzoxazine-2-ones bearing Z exo-olefin at the activated C-C triple bond. In the presence of a catalytic amount of silver salt, various o-alkynylanilines were treated with carbon dioxide and DBU under mild reaction conditions to afford the corresponding 4-hydroxyquinolin-2(1H)-one derivatives in high yield. The key step is proposed as the generation of the isocyanate and the enolate through C-O bond cleavage and new C-C bond formation induced by deprotonation after formation of the benzoxazin-2-one.
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Report
(4 results)
Research Products
(33 results)
