中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | Methyl-3.5.7-trioxo-9-phenyl-non-8-enoat | 17078-96-5 | C16H16O5 | 288.3 |
Dehydroacetic acid, commonly abbreviated as DHA, and its derivatives have been extensively used as important intermediates in organic synthesis particularly for the synthesis of heterocyclic compounds. The reaction of 8-aryloct-7-en-2,4,6-triones (DHA-triones, readily prepared from commercially available DHA by the use of a multistep procedure) with thiosemicarbazide led the formation of some new 2-methyl-5-styryl-7-thioxo-6,7-dihydropyrazolo[1,5-c] pyrimidines.