Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Novartis AG
BASF Schweiz AG
Original Assignee
Ciba Geigy AG
Ciba AG
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Filing date
Publication date
Priority claimed from CH582968Aexternal-prioritypatent/CH507646A/en
Priority claimed from CH457369Aexternal-prioritypatent/CH528211A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES366189A1publicationCriticalpatent/ES366189A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Procedure for the preparation of phenylureas of the formula **(See formula)** in which R represents the C2H5O or C2H5-S group characterized by reacting a compound of the formula **(See formula)** with a compound of the formula **(See formula)** where R represents the group C2H5-O or C2H5-S. A and B stand for radicals which, by addition or condensation, form the urea group together; and R1 represents the methyl or hydrogen group, and in the latter case, in the formed urea, the corresponding hydrogen atoms are replaced by methyl, using methylating agents. (Machine-translation by Google Translate, not legally binding)
ES366189A1968-04-191969-04-18Procedure for the preparation of phenilureas. (Machine-translation by Google Translate, not legally binding)
ExpiredES366189A1
(en)