Process for the production of thiazolines-(3)

摘要

2 AND 5 SUBSTITUTED THIAZOLINE-(3) COMPOUNDS OF THE FORMULA: HC=N R1¦¦R3 ANGLE CC ANGLE (I) ANGLE R2SR4 in which R1, R2, and R3 and R4 are the same or different, R1 and R2 are straight or branched chain lower alkyl, alkenyl or aralkyl groups or together are a straight or branched chain alkylene or ethylenically unsaturated divalent aliphatic hydrocarbon group which joins with the adjacent carbon atom to form a ring and R3 and R4 are similarly defined except R3 can also be hydrogen by reaching a 2,2' dioxodisulfide of the formula OO C ANGLE C ANGLE H R1¦H¦R1 ANGLE C---S-S---C ANGLE (II) R2R2 with an oxo compound of the formula R3 ANGLE C=O R4 and with ammonia and hydrogen sulfide in the presence of an amine and an ammonium salt.