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Crotonic Acid → 1,3-Bis-(4-benzoyl-3-hydroxyphenoxy)-prop-2-yl crotonate
関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|---|---|---|
| 反応物 | Crotonic Acid | HCID 637090 | — |
| 反応物 | 2,2''-Dihydroxy-4,4''-(2-hydroxy-propane-1,3-diyldioxy)dibenzophenone | HCID 1242235 | — |
| 生成物 | 1,3-Bis-(4-benzoyl-3-hydroxyphenoxy)-prop-2-yl crotonate | HCID 70395005 | 75.1% |
反応手順
97 g (0.2 mole) of 1,3-bis-(4-benzoyl-3-hydroxyphenoxy)-2-propanol were esterified analogously to Example 1 with 103 g (1.2 moles) of crotonic acid. After crystallization from an acetone/ethanol mixture (ratio by volume 1:2), 83 g (75 percent of theory) of 1,3-bis-(4-benzoyl-3-hydroxyphenoxy)-prop-2-yl crotonate were obtained in the form of fine white crystals having a melting point of 99° to 103° C. and a purity of 99 percent (HPLC). The structure of the compound obtained was confirmed by UV, IR and NMR spectra.
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 特許番号 | US04824892 |
| 出典データセット | uspto-grants-1989_04 |
| ORD ID | ord-c9e574ae262349eb8989caac247896ee |
| 出典メモ | uspto-grants-1989_04 |