Chinese Journal of Organic Chemistry ›› 2025, Vol. 45 ›› Issue (7): 2586-2599.DOI: 10.6023/cjoc202408023 Previous Articles Next Articles
ARTICLES
收稿日期:2024-11-01
修回日期:2024-12-04
发布日期:2024-12-12
基金资助:
Junqiang Jiao, Gaosheng Yang*(
)
Received:2024-11-01
Revised:2024-12-04
Published:2024-12-12
Contact:
*E-mail: gshyang@ahnu.edu.cn
Supported by:Share
Junqiang Jiao, Gaosheng Yang. Preparation of α-(Di(alkoxycarbonyl)methyl)chalcones and Their Application in the Synthesis of Multisubstituted Cyclopropanes[J]. Chinese Journal of Organic Chemistry, 2025, 45(7): 2586-2599.
| Entry | TsBn/equiv. | NaH/equiv. | Solvent | Temperature/℃ | Timeb/h | Yieldc/% of 3aa |
|---|---|---|---|---|---|---|
| 1 | 1.5 | 2.5 | DMF | 25 | 12 | NR |
| 2 | 1.5 | 2.5 | DMF | 40 | 10 | 66 |
| 3 | 1.5 | 2.5 | DMF | 60 | 6 | 84 |
| 4 | 1.5 | 2.5 | DMF | 80 | 3 | 67 |
| 5 | 1.5 | 2.0 | DMF | 60 | 24 | 58 |
| 6 | 1.5 | 3.0 | DMF | 60 | 5 | 62d |
| 7 | 1.5 | 2.5 | THF | 60 | 6 | 78 |
| 8 | 1.5 | 2.5 | DMSO | 60 | 12 | 90 |
| 9 | 1.1 | 2.5 | DMSO | 60 | 14 | 85 |
| Entry | TsBn/equiv. | NaH/equiv. | Solvent | Temperature/℃ | Timeb/h | Yieldc/% of 3aa |
|---|---|---|---|---|---|---|
| 1 | 1.5 | 2.5 | DMF | 25 | 12 | NR |
| 2 | 1.5 | 2.5 | DMF | 40 | 10 | 66 |
| 3 | 1.5 | 2.5 | DMF | 60 | 6 | 84 |
| 4 | 1.5 | 2.5 | DMF | 80 | 3 | 67 |
| 5 | 1.5 | 2.0 | DMF | 60 | 24 | 58 |
| 6 | 1.5 | 3.0 | DMF | 60 | 5 | 62d |
| 7 | 1.5 | 2.5 | THF | 60 | 6 | 78 |
| 8 | 1.5 | 2.5 | DMSO | 60 | 12 | 90 |
| 9 | 1.1 | 2.5 | DMSO | 60 | 14 | 85 |
| Entry | OS+(CH3)3I− /equiv. | NaH/equiv. | Solvent | Temperature/℃ | Timeb/h | Yieldc/% of 4a | drd |
|---|---|---|---|---|---|---|---|
| 1 | 2.0 | 3.0 | DMF | 40 | 96 | 78 | 96∶4 |
| 2 | 2.0 | 3.0 | DMF | 50 | 48 | 88 | 94∶6 |
| 3 | 2.0 | 3.0 | DMF | 60 | 37 | 80 | 87∶13 |
| 4 | 1.5 | 3.0 | DMF | 50 | 52 | 40 | 75∶25 |
| 5 | 2.5 | 3.0 | DMF | 50 | 72 | 45 | 90∶10 |
| 6 | 2.0 | 2.5 | DMF | 50 | 96 | 42 | 91∶9 |
| 7 | 2.0 | 3.5 | DMF | 50 | 30 | 75 | 80∶20 |
| 8 | 2.0 | 3.0 | DMSO | 50 | 48 | 82 | 89∶11 |
| 9 | 2.0 | 3.0 | THF | 50 | 78 | 63 | 88∶12 |
| Entry | OS+(CH3)3I− /equiv. | NaH/equiv. | Solvent | Temperature/℃ | Timeb/h | Yieldc/% of 4a | drd |
|---|---|---|---|---|---|---|---|
| 1 | 2.0 | 3.0 | DMF | 40 | 96 | 78 | 96∶4 |
| 2 | 2.0 | 3.0 | DMF | 50 | 48 | 88 | 94∶6 |
| 3 | 2.0 | 3.0 | DMF | 60 | 37 | 80 | 87∶13 |
| 4 | 1.5 | 3.0 | DMF | 50 | 52 | 40 | 75∶25 |
| 5 | 2.5 | 3.0 | DMF | 50 | 72 | 45 | 90∶10 |
| 6 | 2.0 | 2.5 | DMF | 50 | 96 | 42 | 91∶9 |
| 7 | 2.0 | 3.5 | DMF | 50 | 30 | 75 | 80∶20 |
| 8 | 2.0 | 3.0 | DMSO | 50 | 48 | 82 | 89∶11 |
| 9 | 2.0 | 3.0 | THF | 50 | 78 | 63 | 88∶12 |
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