METHOD FOR PRODUCING PROTOCATECHUALDEHYDE

申请公布号：JP2004250334(A)

申请号：JP20030039236

申请日期：2003.02.18

申请公布日期：2004.09.09

申请人：

UBE IND LTD

发明人：SHIRAI MASASHI;SHIBA KOJI

分类号：C07C45/64;C07C47/565;(IPC1-7):C07C45/64

主分类号：C07C45/64

摘要：PROBLEM TO BE SOLVED: To provide a simple method for producing protocatechualdehyde in high yield by which the stirring properties during a reaction are improved without using toxic chlorine gas. SOLUTION: This method for producing the protocatechualdehyde represented by formula (2) is carried out as follows. Piperonal represented by formula (1) is reacted with phosphorus pentachloride in the presence of oxygen in an organic solvent. Water is then added to the resultant reaction liquid and further reacted. COPYRIGHT: (C)2004,JPO&NCIPI

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