有机化学 ›› 2025, Vol. 45 ›› Issue (5): 1716-1728.DOI: 10.6023/cjoc202407045 上一篇 下一篇
研究论文
收稿日期:2024-07-30
修回日期:2024-10-05
发布日期:2024-11-20
基金资助:
Shixun Guoa, Wei Wangb,*(
), Yongqiang Zhanga,*(
)
Received:2024-07-30
Revised:2024-10-05
Published:2024-11-20
Contact:
* E-mail: Supported by:文章分享
以碘代芳烃为芳基供体, 报道了一例三线态能量转移促进的自由基链式烯烃氢芳基化反应. 该反应条件绿色温和, 表现出较高的反应效率, 良好的官能团兼容性、底物适用性, 优异的反马氏加成区域选择性, 且可有效放大至克级规模. 炔烃或复杂烯烃底物可有效参与. 原位生成的硅自由基通过卤原子转移促进芳基自由基生成是反应得以发生的关键. 通过底物设计, 该反应亦可应用于四氢喹啉酮药效骨架的合成. 当反应在分子内发生时, 也可使用相对惰性的溴代芳烃为芳基供体. 同时, 初步探索了黄原酸苯酯作为芳基供体进行反应的可行性.
郭仕勋, 王卫, 张永强. 三线态能量转移促进的自由基链式烯烃氢芳基化反应研究[J]. 有机化学, 2025, 45(5): 1716-1728.
Shixun Guo, Wei Wang, Yongqiang Zhang. Research of Triplet Energy Transfer Enabled Radical-Chain Hydroarylation of Alkenes[J]. Chinese Journal of Organic Chemistry, 2025, 45(5): 1716-1728.
| Entry | X | Photocat. | Solvent | Yieldb/% | Entry | X | Photocat. | Solvent | Yieldb/% |
|---|---|---|---|---|---|---|---|---|---|
| 1 | I | P1 (1 mol%) | MeCN | 90 | 11 | I | P7 (3 mol%) | MTBE | 68d |
| 2 | I | P2 (3 mol%) | MeCN | 72 | 12 | I | P7 (3 mol%) | MTBE | 92e |
| 3 | I | P3 (3 mol%) | MeCN | 23 | 13 | I | P7 (3 mol%) | MTBE | 73f |
| 4 | I | P4 (1 mol%) | MeCN | Trace | 14 | I | P7 (3 mol%) | MTBE | 81g |
| 5 | I | P5 (1 mol%) | MeCN | Trace | 15 | Br | P7 (3 mol%) | MTBE | Trace |
| 6 | I | P6 (3 mol%) | MeCN | Trace | 16 | Cl | P7 (3 mol%) | MTBE | n.d.h |
| 7 | I | P7 (3 mol%) | MeCN | 91 | 17 | I | P7 (3 mol%) | MTBE | Tracei |
| 8 | I | P7 (3 mol%) | Toluene | 69 | 18 | I | P7 (3 mol%) | MTBE | Tracej |
| 9 | I | P7 (3 mol%) | DMSO | 74 | 19 | I | P7 (3 mol%) | MTBE | Tracek |
| 10 | I | P7 (3 mol%) | MTBE | 91 (87)c | 20 | I | P7 (3 mol%) | MTBE | Tracel |
| Entry | X | Photocat. | Solvent | Yieldb/% | Entry | X | Photocat. | Solvent | Yieldb/% |
|---|---|---|---|---|---|---|---|---|---|
| 1 | I | P1 (1 mol%) | MeCN | 90 | 11 | I | P7 (3 mol%) | MTBE | 68d |
| 2 | I | P2 (3 mol%) | MeCN | 72 | 12 | I | P7 (3 mol%) | MTBE | 92e |
| 3 | I | P3 (3 mol%) | MeCN | 23 | 13 | I | P7 (3 mol%) | MTBE | 73f |
| 4 | I | P4 (1 mol%) | MeCN | Trace | 14 | I | P7 (3 mol%) | MTBE | 81g |
| 5 | I | P5 (1 mol%) | MeCN | Trace | 15 | Br | P7 (3 mol%) | MTBE | Trace |
| 6 | I | P6 (3 mol%) | MeCN | Trace | 16 | Cl | P7 (3 mol%) | MTBE | n.d.h |
| 7 | I | P7 (3 mol%) | MeCN | 91 | 17 | I | P7 (3 mol%) | MTBE | Tracei |
| 8 | I | P7 (3 mol%) | Toluene | 69 | 18 | I | P7 (3 mol%) | MTBE | Tracej |
| 9 | I | P7 (3 mol%) | DMSO | 74 | 19 | I | P7 (3 mol%) | MTBE | Tracek |
| 10 | I | P7 (3 mol%) | MTBE | 91 (87)c | 20 | I | P7 (3 mol%) | MTBE | Tracel |
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