Compounds represented by the formula ##STR1## wherein R.sub.1 and R. sub.2 each are hydrogen or a phenyl; R.sub.3 is cyano; R.sub.5 OCO- in which R. sub.5 is a lower alkyl having 1-8 carbons, cycloalkyl having 3-6 carbons, alkenyl having 2-8 carbons, alkynyl having 2-8 carbons or phenyl; R.sub.6 SO.sub. 2 - in which R.sub.6 is a lower alkyl having 1-8 carbons, cycloalkyl having 3 to 6 carbons or phenyl; (R.sub.7)(R.sub.8) NCO- in which R.sub.7 and R.sub.8 each are hydrogen or a lower alkyl having 1-4 carbons, cycloalkyl having 3-6 carbons, alkenyl having 2-4 carbons or phenyl, or R.sub.7 and R.sub.8 together with the nitrogen atom to which they are attached are a 3-7 membered ring which may contain a further hetero atom; or R.sub.9 CO- in which R.sub.9 is a lower alkyl having 1-4 carbons, cycloalkyl having 3 to 6 carbons or phenyl; and R.sub. 4 is hydrogen or a lower alkyl having 1-4 carbons,P PAND SALTS THEREOF, HAVING ACTIVITY WHICH INFLUENCES PLANT GROWTH, PROCESSES FOR MAKING SUCH COMPOUNDS, COMPOSITIONS FOR USING THE COMPOUNDS AND METHODS OF USING THE COMPOUNDS TO INFLUENCE PLANT GROWTH ARE DISCLOSED.
展开▼
