PHOSPHORANYL NITROGEN DERIVATIVES

摘要

Plant growth regulatory activity is displayed by mixtures of amides and haloalkyl phosphonic acids and by novel compounds which are addition products of these acids and amides. These materials are ethylene-releasing and/or ethylene stimulating agents. A plant or plant situs may be treated with the mixtures, or the compounds, or with the components of the mixture for the addition product of the components to form on the plant or situs. The amides may in particular be tertiary amides of structure R<3>CO(R<1>)(R<2>), and the addition products formed from these with haloalkyl phosphonic acids are phosphoranyl derivatives indicated to have the structure: wherein R is lower alkyl; X is a halogen atom such as fluorine, chlorine, bromine or iodine; R<1>, R<2> and R<3> are each independently hydrogen, phenyl, naphthyl, methyl or ethyl substituted phenyl, alkyl of 1 to 24 carbon atoms optionally substituted with hydroxy or halogen and R<1> can additionally be alkenyl of 2 to 6 carbon atoms; or R<2> and R<3>, together with nitrogen, can form a N-heterocyclic ring having from 3 to 5 carbon atoms, which ring may be saturated or unsaturated. The amides and the addition products may also be the polymers of above compounds when R<1> is alkenyl, notably vinyl or isopropenyl, and R<2> and R<3> form said N-heterocyclic ring. The polymeric compound contains the unit wherein n is 1 to 5000. The preferred mixture and addition product are of chloroethyl phosphonic acid and N-methyl pyrollidone, which yield an addition product of formula