发明名称 |
PROCESS OF PREPARATION OF ESTERS OF DIETHYLENEGLYCOL |
摘要 |
<p>Prodn. of esters (I) comprises direct reaction of diethylene glycol (DEG) with an acid of formula (II), or its Na or K salts. n = 0 or 1; R1 = H, Cl or Me; R2 = H, CF3 or Me; R3 = H or Cl. Reaction is pref. in presence of SOCl2 at room temp. to 100 deg. C. 2-(2-Hydroxyethoxy)ethyl 2-(2,6-dichlorophenylamino) phenylacetate (Ia) is a new cpd. - Pref. (II) have (1) R1 = R3 = Cl; R2 = H; n = 1; (2) R1 = R3 = H; R2 = CF3; n = O; (3) R1 = R3 = Cl; R2 = Me; N = O; (4) R1 = R2 = Me; R3 = H; n = O. SOCl2 is used in a stoichiometric, or slightly higher, amt. relative to (II).</p> |
申请公布号 |
PT81505(A) |
申请公布日期 |
1985.12.01 |
申请号 |
PT19850081505 |
申请日期 |
1985.11.15 |
申请人 |
FABRICA ESPANOLA DE PROD.QUIM.Y FARM.,SA. (FAES) |
发明人 |
AURELIO ORJALES VENERO;RAMON MOSQUERA PESTANA |
分类号 |
C07C229/42;A61K31/215;C07C67/00;C07C227/00;C07C227/18;C07C229/58;(IPC1-7):C07C31/20 |
主分类号 |
C07C229/42 |
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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