Abstract: This invention relates to a process for preparing sulfonylureas comprising reacting a sulfonyl chloride with a cyanate salt and an amine base in the presence of an inert aprotic solvent to give an isocyanate complex which is then reacted with an amino heterocycle to form the sulfonylurea product and a process for converting the crystal form of the prepared sulfonylurea product to a more stable crystal product form.

Abstract: The present invention relates to novel substituted pyridine compounds useful as intermediates in the preparation of herbicidal compounds and the process for the preparation of said pyridine compounds.

Abstract: The present invention relates to novel substituted pyridine compounds useful as intermediates in the preparation of herbicidal compounds and the process for the preparation of said pyridine compounds.

Abstract: The present invention relates to novel substituted pyridine compounds useful as intermediates in the preparation of herbicidal compounds and the process for the preparation of said pyridine compounds. ##STR1## wherein: R.sup.1 is selected from the group C.sub.1 -C.sub.4 alkyl;R.sup.2 is selected from the group hydrogen, C.sub.1 -C.sub.3 alkyl optionally substituted with methoxy or 1-3 fluorine and C.sub.1 -C.sub.2 alkoxy optionally substituted with 1-3 fluorine;R.sup.3 is selected from the group C.sub.1 -C.sub.3 alkyl substituted with methoxy or 1-3 fluorine;R.sup.4 is selected from the group SO.sub.2 R.sup.5, CO.sub.2 R.sup.5 and C(O)N(R.sup.6).sub.2 ;R.sup.5 is selected from the group C.sub.1 -C.sub.2 alkyl optionally substituted with C.sub.1 -C.sub.2 alkoxy or 1-3 halogens independently selected from the group chlorine and fluorine;R.sup.6 is C.sub.1 -C.sub.2 alkyl;M is selected from the group Li, Na, K, Mg, Ca, NH.sub.4, and alkyl substituted NH.sub.4.

Abstract: This invention relates to certain cyano-dienes and halopyridines and the processes for their preparation from a protected 1,3-dialdehyde and a cyano-diene.

Abstract: A method for making methyl-1,3,5-triazines including the 2,4-dichloro-6-methyl- and the 2-methyl-4-methylamino-6-methoxy-1,3,5-triazines, comprising reacting sodium dicyanamide with a cyclizing agent in the presence of HCl to make the 2,4-dichloro-6-methyl-triazine and reacting said triazine, additionally, with sodium methoxide and monomethylamine to make the 2-methyl-4-methylamino-6-methoxytriazine.

Abstract: A process for preparing 2-amino-4-methyl-6-methoxy-1,3,5-triazine by reacting dialkyl-N-cyanoimidocarbonate with acetamidine hydrochloride or an O-alkylacetamidate hydrochloride under basic conditions.

Abstract: A metal.dicyanimide.ligand complex having the formula M[N(CN).sub.2 ].sub.2.ligand.sub.2 wherein M is Zn, Cu, Mg, Ca, Fe, Al or Si and ligand is a group capable of donating a pair of electrons, a process for its preparation, and its use in the preparation of aminotriazines is disclosed.

Abstract: Process for preparing aminotriazines wherein it is not necessary to make any separations before completing the preparation. The process of the invention involves reacting dicyandiamides with trimethylorthoacetate in the presence of a catalyst to form aminotriazines.

Abstract: Saccharin is reacted with ethanol and concentrated sulfuric acid. Sodium acetate is used to remove saccharin from the crude material so that highly pure o-carboethoxybenzene sulfonamide is recovered.