참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|
| 반응물 | Hydrochloric Acid | HCID 313 | — |
| 반응물 | Dimethyl Sulfoxide | HCID 679 | — |
| 반응물 | 2,5-Dimethylaniline | HCID 7259 | — |
| 반응물 | Sodium Hydroxide | HCID 14798 | — |
| 촉매 | Cupric Chloride | HCID 24014 | — |
| 생성물 | 4-Amino-2,5-dimethylbenzaldehyde | HCID 55284692 | 22.8% |
반응 단계
6.06 g (50.0 mmol) of 2,5-dimethylaniline are initially charged in 1000 ml of DMSO, 13.55 g (100.0 mmol) of copper(II) chloride are added and concentrated hydrochloric acid is then added slowly. The reaction mixture is heated at 90° C. for 3 h and then added to ice-water. After addition of aqueous sodium hydroxide solution, the mixture is filtered and extracted repeatedly with ethyl acetate, and the combined organic phases are dried over Na2SO4 and freed from solvent under reduced pressure. The crude product is purified by column chromatography. (2.27 g, purity 75.0%, yield 22.8%, log P (pH 2.3)=1.34).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| 특허 번호 | US08334237B2 |
|---|
| 출처 데이터셋 | uspto-grants-2012_12 |
|---|
| ORD ID | ord-ba5b549cf843458db48e0963abeacaa2 |
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| 출처 메모 | uspto-grants-2012_12 |
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