Patent ID: 8124818

Claim:
A process for preparing a carbamate of formula II wherein X 1 and X 3 are each independently oxygen or sulfur; Ar is phenyl which may be partly or fully halogenated and/or may carry from one to three radicals selected from the group consisting of cyano, C 1 -C 4 -alkyl and C 1 -C 4 -haloalkyl, and A is NR 4 R 5 where R 4 and R 5 are each independently hydrogen or C 1 -C 6 -alkyl which may itself be substituted by a substituent selected from the group consisting of halogen, cyano, C 3 -C 8 -cycloalkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -alkylthio, C 1 -C 4 -alkoxycarbonyl, phenyl which may itself carry from one to three radicals selected from the group consisting of halogen and C 1 -C 4 -alkoxy; furyl, thienyl and 1,3-dioxolanyl; and L 1 is C 1 -C 6 -alkoxy or C 1 -C 6 -alkylthio; by reacting an amine of formula IV where X 3 , Ar and A are each as defined above, with a compound of the formula V where X 1 and L 1 are each as defined above and L 3 is chlorine or C 1 -C 6 -alkoxy.