发明名称 PRODUCTION OF 1,3-DIOXOLANE-2-CARBOXYLIC ACID ESTERS
摘要 PROBLEM TO BE SOLVED: To profitably obtain the subject compound useful as an intermediate for synthesizing organic compounds, producing polymers, etc., in a simple process in good productivity without by-producing a large amount of wastes by reacting a glyoxylic acid ester, etc., with a specific glycol compound. SOLUTION: This method for producing a 1,3-dioxolane-2-carboxylic acid ester of formula III (R3 is an aliphatic hydrocarbon residue) (for example, 1,3- dioxolane-2-carboxylic acid methyl ester) comprises reacting (A) a glyoxylic acid ester and/or its hemiacetal (for example, methyl glyoxylate) with (B) a glycol compound of formula I (R1 and R2 are each H or an organic residue) (for example, ethylene glycol) or an alkylene oxide of formula II preferably in a raw material ratio of about 1:1 preferably in the presence of a catalyst such as sulfuric acid preferably at <=100 deg.C, while preferably removing water with an azeotropic dehydrating agent such as cyclohexane.
申请公布号 JPH11189591(A) 申请公布日期 1999.07.13
申请号 JP19970359414 申请日期 1997.12.26
申请人 NIPPON SHOKUBAI CO LTD 发明人 NONOGUCHI MASANORI;BABA HIDEYUKI;SAITO NOBORU
分类号 C07D317/32;B01J27/02;B01J31/02;C07B61/00 主分类号 C07D317/32
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