反应详情

A mixture of 2.12 g. of 3,5-diacetyl-4,6-dihydroxy-2H-pyran-2-one, 1.25 g. of p-aminothiophenol and 75 ml. of methanol is refluxed for 2 hours, cooled and filtered to yield 5-acetyl-4-hydroxy-3-[1-(p-mercaptophenylamino)ethylidene]-2H-pyran-2,6(3H)-dione, m.p. 207° -210° C.

1. additionA mixture of 2.12 g
2. temperaturecooled
3. filtrationfiltered