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Carbonic acid, ethyl 4-formylphenyl ester → ethyl p-[(E)-2-(2,2-dimethyl-1,3-benzodithiol-5-yl)propenyl]phenyl carbonate
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Carbonic acid, ethyl 4-formylphenyl ester | HCID 3084912 | — |
| 反応物 | [1-(2,2-Dimethyl-1,3-benzodithiol-5-yl)ethyl]triphenylphosphonium bromide | HCID 19935456 | — |
| 生成物 | ethyl p-[(E)-2-(2,2-dimethyl-1,3-benzodithiol-5-yl)propenyl]phenyl carbonate | HCID 19935517 | — |
反応手順
In analogy to Example 45, by reacting [1-(2,2-dimethyl-1,3-benzodithiol-5-yl)ethyl]triphenylphosphonium bromide with ethyl 4-formylphenyl carbonate, there was obtained ethyl p-[(E)-2-(2,2-dimethyl-1,3-benzodithiol-5-yl)propenyl]phenyl carbonate, melting point 93°-94° C. Hydrolysis of this compound with aqueous potassium hydroxide in ethanol gave p-[(E)-2-(2,2-dimethyl-1,3-benzodithiol-5-yl)propenyl]phenol, melting point 123°-124° C.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US05300522 |
| 出典データセット | uspto-grants-1994_04 |
| ORD ID | ord-4ba4fbac23bf452492c4bb383ec9f84b |
| 出典メモ | uspto-grants-1994_04 |