Hydrazinium salt of di(hydrogen-beta-chloroethanephosphonic acid), its preparation, and a mixture containing this salt

摘要

New hydrazinium salts of di(hydrogen- beta -chloroethanephosphonic acid), of the formula <IMAGE> in which R represents hydrogen or ClCH2CH2-, R' represents hydrogen or -CH3 with the proviso that both R's represent -CH3 when R represents ClCH2CH2-. These compounds are obtained by reacting 2 mol of beta -chloroethanephosphonic acid with 1 mol of a hydrazine of the general formula <IMAGE> in which R' represents hydrogen or -CH3, or the acid N,N-dimethyl-N- beta -chloroethanehydrazinium salt of beta -chloroethanephosphonic acid with beta -chlorethanephosphonic acid, in an inert or aqueous medium. The new compounds can be used as plant growth regulators.