| 黄汉民.钯催化芳基偶氮的氧化羰基化反应[J].分子催化,2016,30(3):207-213 |
| 钯催化芳基偶氮的氧化羰基化反应 |
| Palladium-Catalyzed Oxidative Carbonylation of Arylazos via N=N Double Bond Cleavage |
| 投稿时间：2016-03-25 修订日期：2016-03-29 |
| DOI： |
| 中文关键词: 芳基偶氮 氧化羰基化 N=N键断裂 芳基脲 |
| 英文关键词:arylazos oxidative carbonylation N=N cleavage arylureas |
| 基金项目: |
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| 摘要点击次数: 1561 |
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| 中文摘要: |
| 发展了钯催化芳基偶氮化合物的氧化羰基化反应，为合成芳基硫脲提供了一种新方法。初步的机理研究表明，芳基偶氮化合物的N=N双键断裂原位产生芳基胺，再氧化羰基化生成芳基硫脲。 |
| 英文摘要: |
| A new palladium-catalyzed oxidative carbonylation of arylazos has been developed via cleavage of N=N double bond with TBHP as oxidant, which provided an alternative method for synthesis of arylureas from simple arylazos. The desired products could be obtained in good to excellent yields (31-90%) catalyzed by the combination of Pd(OAc)2/MeO-BIPHEP in the presence of TBHP at 110 oC under 30 atm of CO. The primary mechanistic studies demonstrated that amines might be first formed in situ from arylazos and then the oxidative carbonylation of amines occurs to give the urea products. |
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