FLUOROBENZODIOXOLANYL(DIOXANYL)ISOCYANATES AND THEIR PREPARATION

摘要

1. N-Phenylureas of the general formula I see diagramm : EP0011179,P10,F9 in which Z represents -CF2 -, -CF2 CH2 -, -CF2 CHF- or -CF2 CFCI-, R**1 represents hydrogen, C1-4 -alkyl, C3-5 -alkenyl or C3-5 -alkinyl and R**2 represents C1-4 -alkyl, C3-5 -alkenyl, C3-5 -alkinyl or C1-4 -alkoxy, or R**1 and R**2 together with the adjacent N atom form a heterocyclic 5-membered or 6-membered ring.