Abstract: A new and improved process is provided for preparing monochloro-diamino-s-triazines which are useful as herbicides.The process comprises reacting in a first stage cyanuric chloride and a selected monoalkylamine hydrochloride at elevated temperature to give a dichloro-monoalkylamino-s-triazine and reacting in a second stage this dichloro-monoalkylamino-s-triazine with an excess of a different monoalkylamine which may be introduced as a pure liquid, as gas or as a solution in water. The third stage of the process consists of an exchange whereby the monoalkylamine hydrochloride of the first stage and the free monoalkylamine of the second stage are generated. The process gives consistent yields in excess of 97% of monochloro-diamino-s-triazines. Because the process is caustic-free and due to the feasibility of recycling the excess of monoalkylamines employed, no serious effluent problems arise.

Abstract: Cyclopropylmethyl-N-n-propylamine is prepared by (a) cyclizing 1,4-butanediol by a cobalt-containing catalyst to 2,3-dihydrofuran at a temperature in the range of about 210.degree.-235.degree. C.; (b) thermally isomerizing the 2,3-dihydrofuran to cyclopropanecarboxaldehyde in an open-reactor columm; and (c) reductively alkylating the cyclopropanecarboxaldehyde with n-propylamine and hydrogen in the presence of a platinum catalyst.

Abstract: Process for the preparation of 1,2,4-triazole comprises contacting hydrazine or its aqueous solutions with at least about 2.5 moles of formamide at a temperature of 140.degree. to 210.degree. C. and then recovering the resultant 1,2,4-triazole in yields of 92-98% with 94-98% purity. The formamide is maintained in an excess over about the 2.5 molar amount consumed in the reaction with the hydrazine. Recovery steps for isolating the 1,2,4-triazole are disclosed.

Abstract: A process for preparing 2,6-dialkylcyclohexylamine, e.g., 2,6-dimethylcyclohexylamine, from a corresponding dialkylphenol, e.g., 2,6-dimethylphenol, by passing the phenol over a bed of a hydrogen-transfer catalyst in the presence of ammonia at elevated temperatures and pressures.

Abstract: A process for the preparation of phenolic ethylenediamine polycarboxylic acids in predominantly the ortho isomeric form which comprises reacting a phenol compound, ethylenediamine, glyoxylic acid and a base, said phenol compound functioning both as a reactant and as the sole solvent for the reaction system. The product can then be isolated or directly reacted with an iron salt to form the corresponding iron chelate.

Abstract: A thermally stable water soluble glyoxime composition comprising a blend of glyoxime and an ethylene glycol-type material and a process for the preparation thereof comprising reacting glyoxal and a hydroxylamine acid salt in the presence of said ethylene glycol-type material.

Abstract: Production of 2-alkyl or 2-cycloalkyl-4-methyl-6-hydroxy pyrimidines by first reacting diketene and lower alkanoic or cycloalkanoic acid amides in the presence of catalytic amounts of Lewis bases or Lewis or Bronsted acids, followed by treating the N-acetoacetyl (lower) alkanoic or cycloalkanoic acid amide intermediates with ammonia in the presence of acid catalysts.

Abstract: Compositions and methods useful for the treatment of iron deficiencies in plant utilizing new iron complexes of ethylene-bis(.alpha.-imino-2-hydroxyaryl-acetic acids) containing sulfonic acid groups are disclosed in which the molar ratio of iron to ligand is from about 1.1:1 to 3:1. These complexes are stable at pH values of from about 6.0 to 9.0.