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 CH1177367Aexternal-prioritypatent/CH495702A/en
Application filed by Ciba Geigy AG, Ciba AGfiledCriticalCiba Geigy AG
Publication of ES357436A1publicationCriticalpatent/ES357436A1/en
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Procedure for synthesizing carbamates of the general formula **(See formula)** in which R1 represents an alkynyl radical with 3 to 6 carbon atoms; R2 represents a lower alkyl, alkenyl or alkynyl radical; and R, R3, R4, R5 and R6 may be the same or different and signify hydrogen or lower alkyl radicals, characterized by a) the reaction of a phenol of the formula with alkyl isocyanate or dialkylcarbamic acid chloride; O well b) the reaction of an amino-phenyl carbonate or chlorocarbonate of the formula **(See formula)** (in these formulas, R1, R2, R3, R4 and R6 have the meaning stated above, or R1 and R2 represent substituents which, by re-alkylation or cleavage of halogen or hydrogen halide, can be transformed into these substituents R1 and R2 of the meaning stated above; and X stands for chlorine or any substituent with carbon and easy to change) with dialkylamine or alkylamine. (Machine-translation by Google Translate, not legally binding)
ES357436A1967-08-221968-08-21Procedure to synthetic carbamates. (Machine-translation by Google Translate, not legally binding)
ExpiredES357436A1
(en)
Procedure for preparation of new methyl-2-dialcohyl-aminomethyl-4- (trimetoxy-3 ', 4', 5'-phenyl) -2-dioxilanes. (Machine-translation by Google Translate, not legally binding)