广东化工
廣東化工
엄동화공
GUANGDONG CHEMICAL INDUSTRY
2012年
1期
8-8,158
,共2页
谭伟%杜志云%卢宇靖%张磊
譚偉%杜誌雲%盧宇靖%張磊
담위%두지운%로우정%장뢰
阿司匹林%水杨酸%乙酰氯%乙酸酐
阿司匹林%水楊痠%乙酰氯%乙痠酐
아사필림%수양산%을선록%을산항
Aspirin%salicylic acid%acetyl chloride%acetic anhydride
以水杨酸和乙酰氯为原料,浓硫酸为催化剂合成阿司匹林。结果表明,当水杨酸用量为2.0 g,乙酰氯用量为5 mL,浓硫酸用量为1 mL时,85℃反应15 min,阿司匹林收率可达73.8%,比同等条件下乙酸酐的收率提高了20%左右。
以水楊痠和乙酰氯為原料,濃硫痠為催化劑閤成阿司匹林。結果錶明,噹水楊痠用量為2.0 g,乙酰氯用量為5 mL,濃硫痠用量為1 mL時,85℃反應15 min,阿司匹林收率可達73.8%,比同等條件下乙痠酐的收率提高瞭20%左右。
이수양산화을선록위원료,농류산위최화제합성아사필림。결과표명,당수양산용량위2.0 g,을선록용량위5 mL,농류산용량위1 mL시,85℃반응15 min,아사필림수솔가체73.8%,비동등조건하을산항적수솔제고료20%좌우。
Aspirin was synthesized using raw materials of salicylic acid and acetyl chloride, which was catalyzed by concentrated sulphuric acid. Results were showed that yield of aspirin was reached 73.8 % under as follow conditions： salicylic 2.0 g, acetyl chloride 5 mL, concentrated sulphuric acid 1 mL, temperature 85℃ , reaction 15 rain. Compared with acetic anhydride, yield of aspirin was enhanced about 20 % at status conditions.
