| abstract |
Title cpds. of formula (I): (where R is 3-4C alkenyl or chloro-substd. 2-3C alkyl; R1 and R2 are both H, or one is H and the other is CH3; and n is 1 or 2), which are (selective) herbicides and plant-growth regulators, are prepd. by reacting an amine of formula (II): with Hal-CO-SR (where Hal is Cl or Br), or with COCl2 then R-SH, or with COS then R-X in the presence of an acid-binding agent. |