Synthesis and reactions of methyl 3-(1-adamantyl-carbonyl)-4,5-dihydro-1H-pyrazole-5-carboxylate
摘要:
The 1,3-dipolar addition of 1-(1-adamantyl)-2-diazoethanone to methyl acrylate gave methyl 3-(1-adamantylcarbonyl)-4,5-dihydro-1H-pyrazole-5-carboxylate from which there were prepared methyl 3-(1-adamantylcarbonyl) substituted 4,5-dihydroisoxazole-5- and 1H-pyrazole-5-carboxylates as well as the products of reduction of the latter at the keto- and ester groups.