PROCEDIMIENTO PARA PREPARAR DERIVADOS DE IMIDOCARBONATO.

摘要

1335617 Imidocarbonate derivatives SUMITOMO CHEMICAL CO Ltd 19 April 1971 [21 April 1970] 27063/71 Heading C2C Novel imidocarbonate derivatives of the formula wherein Y and Z are oxygen or sulphur atoms; Ar is an unsubstituted or halogen- or (C 1 -C 4 ) alkyl-substituted pyridine or benzene nucleus, the number of substituents being 1, 2 or 3; R2 and R3 are unsubstituted alkyl groups or alkyl groups having a hydroxy or alkoxycarbonyl radical in the carbon chain, or an alkenyl, alkynyl or aralkyl group, the aromatic nucleus of which is unsubstituted or substituted by a nitro radical or by 1 to 4 halogen atoms or (C 1 -C 4 ) alkyl groups or, in the case of R3, an alkylene radical, provided that when Ar is an unsubstituted benzene nucleus and R2 and R3 are aralkyl groups, the aromatic nucleus of at least one of the said aralkyl groups is substituted and provided that, when Z is a sulphur atom, Ar is an unsubstituted 3-pyridyl radical and R 2 is a (C 1 -C 18 ) acyclic alkyl group or a (C 1 -C 4 ) alkyl-substituted benzyl radical, then R 3 is not a p-halo, p-secondary propyl, or p-tertiary butyl group, are prepared by either (a) reacting a thionocarbamio or dithiocarbamic acid ester of the formula with an organic halide of the formula R3X, wherein X is a halogen atom, (b) reacting an isocyanic acid dichloride derivative of the formula with an alkali metal alcoholate or mercaptide derivative of the formula R2.Y.M wherein M is an alkali metal, (c) reacting an imidocarbonate chloride derivative of the formula with an alkali metal alcoholate or mercaptide derivative of the formula R3.Z.M, or (d) reacting a dialkali metal imidothiocarbonate derivative of the formula with an organic halide R2X. The novel compounds possess microbicidal activity.