ES358045A1 - A procedure for preparing derivatives of ureidooxicarboxylates of rent. (Machine-translation by Google Translate, not legally binding)
- Google Patents
A procedure for preparing derivatives of ureidooxicarboxylates of rent. (Machine-translation by Google Translate, not legally binding)
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EIDP Inc
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EI Du Pont de Nemours and Co
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Priority to ES358045ApriorityCriticalpatent/ES358045A1/en
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Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
A procedure to prepare derivatives of alkyl ureidooxycarboxylates of formula: **(See formula)** in which R is hydrogen, an alkyl radical of 1 to 6 carbon atoms, alkenyl of 2 to 6 carbon atoms, a phenyl group or a halophenyl; R1 hydrogen or an alkyl radical of 1 or 2 carbon atoms; Q oxygen or sulfur. When Q is oxygen, R2 is an alkenic radical of 3 to 6 carbon atoms, an alkyne radical of 3 to 6 carbon atoms, a cycloalkyl radical of 3 to 8 carbon atoms, a cycloalkenyl radical of 5 to 8 carbon atoms, a substituted alkyl radical of 1 to 6 carbon atoms or a substituted alkenic radical of 3 to 6 carbon atoms, the substituents being able to be chosen from a halogen, an alkoxy group of 1 to 3 carbon atoms, a thioalkyl group of 1 to 3 carbon atoms, an alkoxycarbonyl group of 2 to 5 carbon atoms, a carboxyl group, carboxylic ammonium salts, alkali metal carboxylic salts, and alkaline earth metal carboxylic salts, a phenyl group, or phenyl substituted with one, two, or three selected groups between alkyl radicals of 1 to 4 carbon atoms, halogens, nitro, cyano, methoxy and methoxycarbonyl groups; and if Q is sulfur, R2 is an alkyl radical of 1 to 6 carbon atoms, an alkenic radical of 3 to 6 carbon atoms, a phenyl or phenyl group substituted by one or two groups chosen from alkyl radicals of 1 or 2 atoms carbon, methoxy, halogen and nitro groups, the process of which involves reacting an α-halo ester of the formula: **(See formula)** in which Z is a halogen atom with a hydroxyurea alkali metal salt of the formula: **(See formula)** where M + is an alkali metal ion. (Machine-translation by Google Translate, not legally binding)
ES358045A1968-09-111968-09-11A procedure for preparing derivatives of ureidooxicarboxylates of rent. (Machine-translation by Google Translate, not legally binding)
ExpiredES358045A1
(en)
A procedure for preparing a useful composition for increasing the sugar content of a sugar culture. (Machine-translation by Google Translate, not legally binding)
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