摘要
研究了聚乙二醇催化合成头孢三嗪的工艺.探讨了聚乙二醇分子量、用量、反应温度及反应时间等对缩合产物收率的影响.当用聚乙二醇-800作为相转移催化剂,在二氯甲烷-水溶剂中于0℃反应4~6h,收率94%.
Ceftriaxone is synthesized by using PEG as phase transfer catalyst.The influence of PEG,temperature and time on the yield of the product is discussed.The 94 % yield of condensation product was obtained under the catalyst PEG 800,the solvent CH 2Cl 2 H 2O,the temperature 0 ℃ and time 4~6 h.
出处
《湖南大学学报(自然科学版)》
EI
CAS
CSCD
1999年第2期20-23,共4页
Journal of Hunan University:Natural Sciences