发明名称 |
PROCEDE POUR LA PREPARATION D'ACIDE ITACONIQUE ET DERIVES |
摘要 |
1418451 ltaconic acid and derivatives SNAMPROGETTI SpA 1 May 1974 [9 May 1973] 19195/74 Heading C2C Compounds of formula wherein R and R<SP>1</SP> are hydrogen atoms, a hydrocarbon radical, and either each of X and X<SP>1</SP>, which can be the same or different is -CN, -COOR<SP>2</SP>, -COOM, or -CONH 2 where M is a monovalent metal atom or represents part of a metal atom of valency at least 2 and R<SP>2</SP> is a hydrogen atom or a hydrocarbon radical, or X and X<SP>1</SP> represent a divalent radical and with the two carbon atoms attached thereto form a heterocyclic ring with five atoms, are prepared by reacting formaldehyde or a precursor therefor with a compound An example describes the preparation of potassium itaconate by reacting diethyl succinate with trioxane in the presence of a tert.-butanol solution of potassium tert.-butanolate. |
申请公布号 |
RO63044(A) |
申请公布日期 |
1978.05.15 |
申请号 |
RO19740078518 |
申请日期 |
1974.04.22 |
申请人 |
SNAM PROGETTI SPA,IT |
发明人 |
ROMANO,UGO,IT;MAURI,MARCELLO M.,IT |
分类号 |
C07C69/593;A61K31/185;C07C;C07C51/00;C07C51/353;C07C51/56;C07C57/00;C07C57/02;C07C57/13;C07C57/26;C07C57/42;C07C67/00;C07C69/00;C07C69/52;C07C231/00;C07C231/12;C07C233/09;C07C253/00;C07C255/06;C07D;(IPC1-7):07C57/02 |
主分类号 |
C07C69/593 |
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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