Fungicidal acylamino tri:chloroethyl carbamate - prepd. from an acylamino tri:chloro-ethanol and an isocyanate and used in plant protection

摘要

1-Acylamino-2,2,2-trichloroethyl carbamates of formula R-NH-CO-O-C(NHCOR')H-CCl3 (I) are new, (where R = 1-4C alkyl or an aryl group, opt. substd. by halogen(s) and/or nitro, cyano, alkyl, alkoxy, thioalkyl, acyl, mono- or di-alkylamino; R' = H, 1-9C alkyl or haloalkyl having =4 halogen atoms, aryl or aryloxy opt. substd. by halogen(s) or alkyl or alkoxy gps., or an arylalkyl or aryloxyalkyl gp. which may be substd. on the aryl ring by halogen(s), or alkyl or alkoxy gp(s); the alkyl or acyl substits. having 1-4C atoms). Cpds. (I) are plant fungicides. A typical cpd. is 1-chloroacetamido-2,2,2-trichloroethyl N-methyl carbamate. This was prepd. from 1-chloroacetamido-2,2,2-trichloroethanol and methyl isocyanate.