6-Cycloalkylcarbonyl-2(3H)-benzothiazolones cannot be prepared by classical Friedel-Craftsacylation with the corresponding cycloalkylcarbonyl chlorides. We have explored new way via stille coupling from the tributyltin intermediates which were synthesised by protection of the NH group with ethylmethyl ether or potassium salt of the corresponding 6-bromo-2-(3H)-benzothiazolone. The stille coupling reaction of these