| abstract |
Process for the preparation of 3-aryl-5,6-dihydro-1,4,2-oxathiazines and their derivatives The invention relates to preparation processes of the novel title compounds. The object of the invention is the provision of new herbicides, fungicides and plant growth-influencing agents. Prepared according to the invention are compounds of the general formula wherein R 1, R 1 and n are as defined in the description, by reacting a compound R-CS 2-CH deep 2-CH deep 3 with H 2H 2 NOH and treating the obtained Equilibrium product with a compound of formula R high 1 C (X) HC (X) H deep 2 in the presence of two equivalents of a base. The new compounds can be used as herbicides, fungicides, desiccants and defoliants. |