反应详情

A mixture of 73.0 grams (0.50 moles) of α-tetralone, 64.2 grams (0.60 moles) of 4-pyridinecarboxaldehyde, 10 grams of piperidine and 10 grams of acetic acid are heated at 80° for 19 hours. The resultant solid is crystallized from about 400 ml. of ethanol to give 2-(4-pyridylmethylene)- 1-tetralone; (m.p. 112°-114°C).

1. temperatureare heated at 80° for 19 hours
2. customThe resultant solid is crystallized from about 400 ml