摘要
由 2戊酮和草酸二乙酯经 Claisen酯缩合反应、甲基化反应、水解反应等四步反应制得了 1甲基 3正丙基 5吡唑羧酸 ,总收率 61 .4 % ,产物结构经
methyl3npropylpyrazole5carboxylic acid was prepared through four steps Claisen condesation, methylation, hydrolysis, et al. from the staff 2pentanone and diethyloxatate. The total yield was 61.4% and the product was characterized by MS.
出处
《精细石油化工》
CAS
CSCD
北大核心
2000年第3期20-22,共3页
Speciality Petrochemicals
关键词
合成
正丙基
吡唑羧酸
甲基
药物
中间体
pentanone and diethyloxatate
preparation
1-methyl-3-n-propyl-pyrazole-5-carboxylic acid
