Haloacetylated enol ethers.<b>9</b>. Synthesis of 4-trifluoromethyl-2-methyl[phenyl]pyrimidines and tetrahydro derivatives
作者:Nilo Zanatta、Madelon B. Fagundes、Ricardo Ellensohn、Marcelo Marques、Helio G. Bonacorso、Marcos A. P. Martins
DOI:10.1002/jhet.5570350231
日期:1998.3
The synthesis of 4-trifluoromethyl-2-methyl[phenyl]pyrimidines and the corresponding tetrahydro derivatives from the cyclo-condensation reaction of β-alkoxyvinyl trifluoromethyl ketones 1a-d with acetamidine or benzamidine hydrochloride, is reported. For the cyclo-condensation of 1a-d with acetamidine and benzamidine hydrochloride, two methods were tested: 1 M solution of sodium hydroxide (method A)