Synthesis of l

Claim 1

THE PROCESS FOR PREPARING AN ACID ADDITION SALT 2-(N-SUBSTITUTED)-1,3-DIAZACYCLOALKENE-2 WHICH COMPRISES REACTING, IN A POLAR HYDROXYLIC SOLVENT SELECTED FROM THE GROUP CONSISTING OF WATER AND LOWER ALKANOLS CONTAINING UP TO FIVE CARBON ATOMS AT A TEMPERATURE OF FROM 20 TO 140*C., AN ISOTHIOURONIUM SALT SELECTED FROM THE GROUP CONSISTING OF HALIDE, SULFATE AND SULFONATE SALTS WHEREIN THE GROUPS ATTACHED TO THE NUMBER ONE NITROGEN ATOM OF SAID ISOTHIOURONIUM SALT FREE OF ACID SUBSTITUENTS GIVING RISE TO ISOTHIOURONIUM SALTS HAVING A HYDROGEN ION CONCENTRATION GREATER THAN TEN TO THE MINUS THREE MOLES PER LITER IN AQUEOUS SOLUTION AND CONTAINING UP TO A TOTAL OF THIRTY CARBON ATOMS, WITH A DIAMINO COMPOUND CONTAINING FROM TWO TO THREE CARBON ATOMS IN A SATURATED CHAIN BETWEEN THE AMINO GROUPS, SAID CARBON ATOMS BEING FREE OF ACID SUBSTITUENTS GIVING RISE TO DIAMINO COMPOUNDS HAVING A HYDROGEN ION CONCENTRATION OF GREATER THAN TEN TO THE MINUS THREE MOLES PER LITER IN AQUEOUS SOLUTION, SAID CARBON ATOMS, WHEN ADJACENT TO AMINO GROUPS BEING FREE OF HYDROXYL GROUPS.