Compounds of the formula ##STR1## wherein R.sup.1 is alkyl or alkoxy; R.sup.2 is substituted alkly or substituted alkenly containing 1 or 2 hydroxy or alkoxy substituents, acyl, and ketal group of the formula ##STR2## wherein n=2, 3 or 4, R.sup.4 is alkyl and R.sup.5 is hydrogen or alkyl, an oxime of the formula ##STR3## wherein R.sup.6 is hydrogen or alkyl; R.sup.3 is hydrogen or alkyl; X is halo and Y is oxygen or sulfur have herbicidal activity.
该公式化合物为##
STR1##其中R.sup.1为烷基或烷
氧基;R.sup.2为取代烷基或取代
烯基,含有1或2个羟基或烷
氧基取代基,酰基和##
STR2##的羰基,其中n=2、3或4,R.sup.4为烷基,R.sup.5为
氢或烷基,##
STR3##的
肟具有除草活性。