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HRID 30262作成日：2026年10月23日
Toluene → 5,7-Dimethyl-3,3a,7,7a-tetrahydro-1H-4-thia-2-aza-cyclopenta[alpha]pentalene-2-carboxylic acid ethyl ester
https://huagongshe.com/ja/reaction/30262
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | Toluene | HCID 1140 | — |
| 反応物 | 5-Bromo-7-methyl-3,3a,7,7a-tetrahydro-1H-4-thia-2-aza-cyclopenta[alpha]pentalene-2-carboxylic acid ethyl ester | HCID 131727034 | — |
| 反応物 | HCID 178477796 | HCID 178477796 | — |
| 触媒 | Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+) | HCID 178418228 | — |
| 溶媒 | 1,4-Dioxane | HCID 31275 | — |
| 生成物 | 5,7-Dimethyl-3,3a,7,7a-tetrahydro-1H-4-thia-2-aza-cyclopenta[alpha]pentalene-2-carboxylic acid ethyl ester | HCID 131727036 | 95% |
反応手順
A solution of the product from step j) (284 mg, 0.86 mmol) in dioxane (4.3 ml) was treated with Pd(dppf)2Cl2 (42 mg, 0.051 mmol) and a 2M solution of dimethylzinc in toluene (0.86 ml, 1.72 mmol) at 102° C. for 1 hour. The reaction was cooled to 22° C. and carefully quenched with sat. NH4Cl (3 ml). After the effervescence subsided, the reaction was extracted with EtOAc (3×50 ml). The combined organic layers were dried (MgSO4) passed through a plug of silica-gel eluting with 50:50 hexanes:EtOAc to provide the subtitle compound (216 mg, 95% over 3-steps). MS calculated for C14H19NO2S+H 266, observed 266.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 特許番号 | US07423056B2 |
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| 出典データセット | uspto-grants-2008_09 |
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| ORD ID | ord-f161ac2f1f7944ba8d2010d388c80939 |
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| 出典メモ | uspto-grants-2008_09 |
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