関与物質
| 役割 | 名称 | HCID | 仕込み量 |
|---|
| 反応物 | 1-(Triphenylphosphoranylidene)acetone | HCID 15038 | — |
| 反応物 | 3,5-Dimethylbicyclo[4.2.0]octa-1,3,5-trien-7-one | HCID 302327 | — |
| 生成物 | 1-Acetonylidene-4,6-dimethylbenzocyclobutene | HCID 67913142 | 81% |
反応手順
4,6-Dimethylbenzocyclobut-en-1-one (5.5 g, 38 mmol) and triphenylphosphoranylidene-2-propanone (15.0 g, 47 mmol) were heated together with stirring at 180° C. for 0.5 hours. After cooling the mixture was triturated with ether, filtered and the filtrate evaporated to give 1-acetonylidene-4,6-dimethylbenzocyclobutene as a pale brown solid (5.7 g, 81%). Pmr spectrum (CDCl3, δ in ppm): 2.30 (6H, s); 2.35 (3H,s); 3.94 (2H, s); 6.25 (1H, s); 6.86 (2H, s).
情報源と証拠
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| 特許番号 | US04643763 |
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| 出典データセット | uspto-grants-1987_02 |
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| ORD ID | ord-233aa3ebb40449d3ad414991079505ab |
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| 出典メモ | uspto-grants-1987_02 |
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