发明名称 |
Process for preparation of cinnamates using polyaniline salts as catalysts |
摘要 |
The present invention relates to a process for preparation of cinnamates using polyaniline salts as catalysts. The present invention more particularly relates to a process for producing cinnamic esters by the direct esterification of cinnamic acid with aliphatic alcohols over polyaniline salts as catalysts. The process of esterification may be carried out by reacting cinnamic acid with aliphatic mono hydric alcohol in presence of catalyst, removing the catalyst by conventional methods. The ester can be isolated such as filtration followed by isolation of esters by conventional column chromatography using adsorbent such as silica gel and solvent such as chloroform, ethylacetate, hexane and mixture there off<custom-character file="US20040049068A1-20040311-P00999.TIF" wi="151.6" he="8.4" id="custom-character-00001" alt="text missing or illegible when filed"/>
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申请公布号 |
US2004049068(A1) |
申请公布日期 |
2004.03.11 |
申请号 |
US20020075933 |
申请日期 |
2002.02.13 |
申请人 |
PALANIAPPAN SRINIVASAN;SAIRAM MALLADI |
发明人 |
PALANIAPPAN SRINIVASAN;SAIRAM MALLADI |
分类号 |
C07C67/08;(IPC1-7):C07C69/74 |
主分类号 |
C07C67/08 |
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