Chinese Journal of Organic Chemistry ›› 2025, Vol. 45 ›› Issue (9): 3478-3485.DOI: 10.6023/cjoc202502033 Previous Articles Next Articles
ARTICLES
姚宏淼b, 王少东b, 元鑫鑫b, 曾乾定a, 江海c, 邹义勇c, 任江萌b,*(
), 张宇松d,*(
), 曾步兵a,*(
)
收稿日期:2025-02-26
修回日期:2025-03-30
发布日期:2025-04-16
Hongmiao Yaob, Shaodong Wangb, Xinxin Yuanb, Qianding Zenga, Hai Jiangc, Yiyong Zouc, Jiangmeng Renb,*(
), Yusong Zhangd,*(
), Bu-Bing Zenga,*(
)
Received:2025-02-26
Revised:2025-03-30
Published:2025-04-16
Contact:
E-mail: About author:★ Academic Papers of the 27th Annual Meeting of the China Association for Science and Technology.
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Hongmiao Yao, Shaodong Wang, Xinxin Yuan, Qianding Zeng, Hai Jiang, Yiyong Zou, Jiangmeng Ren, Yusong Zhang, Bu-Bing Zeng. Formal Synthesis of Dydrogesterone: A Milder Dearomatization Strategy★[J]. Chinese Journal of Organic Chemistry, 2025, 45(9): 3478-3485.
| Entry | Solvent | Catalyst (Dosage/mol%) | EG/equiv. | T/℃ | Yieldb/% | ||
|---|---|---|---|---|---|---|---|
| 9 | 10 | 11 | |||||
| 1 | — | PTSAc (3) | 60 | r.t. | 35.1 | 29.9 | 24.3 |
| 2 | CH3CN | PTSAc (3) | 3 | r.t. | 37.4 | 19.2 | 32.2 |
| 3 | CH3CN | Oxalic acid (50) | 2 | 80 | 11.4 | 6.7 | N.D. |
| 4 | CH3CN | Oxalic acid (50) | 8 | 80 | 33.2 | 19.3 | N.D. |
| 5 | CH3CN | Oxalic acid (50) | 25 | 80 | 59.6 | 23.5. | Trace |
| 6 | CH3CN | PVP-I (3) | 2 | 60 | 9.8 | N.D. | N.D. |
| 7 | CH3CN | PVP-I (3) | 3 | 60 | 68.3 | 23.4 | N.D. |
| 8 | CH3CN | PVP-I (3) | 8 | 60 | 42.6 | 29.7 | Trace |
| 9 | CH3CN | PVP-I (3) | 30 | 60 | 26.5 | 42.3. | 54.2 |
| 10 | — | PVP-I (3) | 60 | 60 | Trace | N.D. | N.D. |
| 11 | EtOAc | PVP-I (3) | 3 | 60 | 15.8 | Trace | N.D. |
| 12 | THF | PVP-I (3) | 3 | 60 | 25.7 | Trace | N.D. |
| 13 | CH3CN | PVP-I (3) | 3 | r.t. | 39.5 | 9.5 | N.D. |
| 14 | CH3CN | PVP-I (3) | 3 | 80 | 45.3 | 21.3 | 29.4 |
| Entry | Solvent | Catalyst (Dosage/mol%) | EG/equiv. | T/℃ | Yieldb/% | ||
|---|---|---|---|---|---|---|---|
| 9 | 10 | 11 | |||||
| 1 | — | PTSAc (3) | 60 | r.t. | 35.1 | 29.9 | 24.3 |
| 2 | CH3CN | PTSAc (3) | 3 | r.t. | 37.4 | 19.2 | 32.2 |
| 3 | CH3CN | Oxalic acid (50) | 2 | 80 | 11.4 | 6.7 | N.D. |
| 4 | CH3CN | Oxalic acid (50) | 8 | 80 | 33.2 | 19.3 | N.D. |
| 5 | CH3CN | Oxalic acid (50) | 25 | 80 | 59.6 | 23.5. | Trace |
| 6 | CH3CN | PVP-I (3) | 2 | 60 | 9.8 | N.D. | N.D. |
| 7 | CH3CN | PVP-I (3) | 3 | 60 | 68.3 | 23.4 | N.D. |
| 8 | CH3CN | PVP-I (3) | 8 | 60 | 42.6 | 29.7 | Trace |
| 9 | CH3CN | PVP-I (3) | 30 | 60 | 26.5 | 42.3. | 54.2 |
| 10 | — | PVP-I (3) | 60 | 60 | Trace | N.D. | N.D. |
| 11 | EtOAc | PVP-I (3) | 3 | 60 | 15.8 | Trace | N.D. |
| 12 | THF | PVP-I (3) | 3 | 60 | 25.7 | Trace | N.D. |
| 13 | CH3CN | PVP-I (3) | 3 | r.t. | 39.5 | 9.5 | N.D. |
| 14 | CH3CN | PVP-I (3) | 3 | 80 | 45.3 | 21.3 | 29.4 |
| Entry | Catalyst | Base | Additive | T/℃ | Yieldb/% |
|---|---|---|---|---|---|
| 1 | Pd(OAc)2 | K3PO4 | — | 140 | 52 |
| 2 | PdCl2 | K3PO4 | — | 140 | 49 |
| 3 | PdCl2(PPh3)2 | K3PO4 | — | 140 | 43 |
| 4 | Pd(PPh3)4 | K3PO4 | — | 140 | 25 |
| 5 | Pd/C | K3PO4 | — | 140 | 29 |
| 7 | Pd(OAc)2 | K2CO3 | — | 140 | 46 |
| 8 | Pd(OAc)2 | NaHCO3 | — | 140 | 43 |
| 9 | Pd(OAc)2 | Na2CO3 | — | 140 | 61 |
| 10 | Pd(OAc)2 | Na2CO3 | PPh3 | 140 | 69 |
| 11d | Pd(OAc)2 | Na2CO3 | P(o-Tol)3c | 140 | 85 |
| 12d | Pd(OAc)2 | Na2CO3 | P(o-Tol)3 | 150 | 78 |
| 13d | Pd(OAc)2 | Na2CO3 | P(o-Tol)3 | 100 | 67 |
| Entry | Catalyst | Base | Additive | T/℃ | Yieldb/% |
|---|---|---|---|---|---|
| 1 | Pd(OAc)2 | K3PO4 | — | 140 | 52 |
| 2 | PdCl2 | K3PO4 | — | 140 | 49 |
| 3 | PdCl2(PPh3)2 | K3PO4 | — | 140 | 43 |
| 4 | Pd(PPh3)4 | K3PO4 | — | 140 | 25 |
| 5 | Pd/C | K3PO4 | — | 140 | 29 |
| 7 | Pd(OAc)2 | K2CO3 | — | 140 | 46 |
| 8 | Pd(OAc)2 | NaHCO3 | — | 140 | 43 |
| 9 | Pd(OAc)2 | Na2CO3 | — | 140 | 61 |
| 10 | Pd(OAc)2 | Na2CO3 | PPh3 | 140 | 69 |
| 11d | Pd(OAc)2 | Na2CO3 | P(o-Tol)3c | 140 | 85 |
| 12d | Pd(OAc)2 | Na2CO3 | P(o-Tol)3 | 150 | 78 |
| 13d | Pd(OAc)2 | Na2CO3 | P(o-Tol)3 | 100 | 67 |
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