Title:
【発明の名称】シュウ酸誘導体の製法
Document Type and Number:
Japanese Patent JP2717149
Kind Code:
B2
Abstract:
A new process is described for the preparation of oxalic acid esters and amides of general formula (I) Z- @-@-Z<1> (I) wherein Z designates an -OR or -NR<1>R<2> group, wherein R represents substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or aryl-alkyl, R<1> is hydrogen or substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or aryl-alkyl, R<2> represents substituted or unsubstituted alkyl, alkenyl, cycloalkyl, aryl, or aryl-alkyl, or R<1> and R<2> taken together with the adjacent nitrogen atom represent a saturated 5-, 6-, 7-, or 8-membered heterocyclic ring, which may contain an additional heteroatom selected from -O-, -S-, and -N(H, Alkyl)-, and optionally bear one or more alkyl or alkenyl substituents, and Z<1> designates an -OR or -NR<1>R<2> group, wherein R, R<1>, and R<2> are as defined before, or a group -NHCOCH3, which comprises the base-catalysed reaction of diacetyloxamide with an alcohol ROH or/and an amine HNR<1>R<2>. The compounds of formula (I) have many industrial utilities, mainly as intermediates and stabilizers in the polymer field.
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Inventors:
Giusepe Messina
Giovanni Matteo Seki
Loreno Lorenzoni
Giovanna Kessa
Giovanni Matteo Seki
Loreno Lorenzoni
Giovanna Kessa
Application Number:
JP9901689A
Publication Date:
February 18, 1998
Filing Date:
April 20, 1989
Export Citation:
Assignee:
Anychem Annick Esse Pi A
International Classes:
B01J31/02; C07B61/00; C07C69/36; C07C231/00; C07C67/20; C07C231/10; C07C233/56; C07C235/70; C07D295/185; C08F18/14; C08G63/02; (IPC1-7): C07C69/36; C07C67/20
Attorney, Agent or Firm:
Asakura Shozo