The invention provides compounds of the general formula ##STR1## wherein R represents a hydrogen atom, or an optionally substituted alkyl or acyl group, or an alkenyl or alkynyl group or an inorganic or organic cation; R.sup.1 represents an alkyl, haloalkyl, alkenyl, alkynyl or optionally substituted aralkyl or phenyl group; R.sup.2 represents an optionally substituted alkyl or phenalkyl group or a cycloalkyl, alkenyl, haloalkenyl or alkynyl group; each R.sup.3 represents an optionally substituted alkyl group; one of R.sup.4 or R.sup.5 represents a hydrogen atom or an alkyl group while the other of R.sup.4 and R.sup.5 represents an optionally substituted phenyl group; together with their use as herbicides and their preparation using novel intermediates.
该发明提供了一般式##STR1##的化合物,其中R代表氢原子,或者是一个可选取代的烷基或酰基团,或者是一个烯烃或
炔烃基团或者是一个无机或有机阳离子;R.sup.1代表一个烷基,卤代烷基,烯烃,
炔烃或可选取代的芳基烷基或苯基团;R.sup.2代表一个可选取代的烷基或苯烷基团或者一个环烷基,烯烃,卤代烯烃或
炔烃基团;每个R.sup.3代表一个可选取代的烷基团;R.sup.4或R.sup.5中的一个代表氢原子或一个烷基,而另一个代表一个可选取代的苯基团;以及它们作为
除草剂的用途以及使用新型中间体制备它们。