发明名称 |
METHOD FOR PRODUCING AQUEOUS ORTHO-PHTHALALDEHYDE SOLUTIONS |
摘要 |
A method for producing aqueous ortho-phthalaldehyde solutions which comprises introducing an acetal of the o-phthalaldehyde into water and subsequently setting a pH < 7 by adding an acid, whereupon, then at a temperature between 10.degree.C and 90.degree.C, the acetal is converted into the o-phthalaldehyde by eliminating the corresponding alcohol, and also use of OPA acetals for producing these solutions.
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申请公布号 |
CA2538424(A1) |
申请公布日期 |
2006.09.02 |
申请号 |
CA20062538424 |
申请日期 |
2006.03.01 |
申请人 |
DSM FINE CHEMICALS AUSTRIA NFG GMBH & CO KG. |
发明人 |
HILLISCH, WORLFGANG;GISELBRECHT, KARLHEINZ |
分类号 |
C07C47/544 |
主分类号 |
C07C47/544 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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