Abstract: There are described silanyl phenols and naphthols of formula (1a) or (1b), wherein R1 is hydrogen; halogen; hydroxy; C1–C20alkyl; C3–C12cycloalkyl; C1–C20alkoxy; trifluoromethyl; pentafluoroethyl; mono- or di-C1–C5alkylamino; hydroxy-C1–C5alkyl; or phenyl, phenyl-C1–C20alkyl, phenoxy, phenyl-C1–C20alkoxy, naphthyl or naphthyl-C1–C20alkyl each unsubstituted or substituted by C1–C5alkyl, C3–C12cycloalkyl, C1–C5alkoxy, C3–C12cycloalkoxy, halogen, oxo, carboxy, carboxy-C1–C7alkyl ester, carboxy-C3–C12cycloalkyl ester, cyano, trifluoromethyl, pentafluoroethyl, amino, N,N-mono- or di-C1–C20alkylamino or by nitro; R2, R3 and R4 are each independently of the others hydrogen; C1–C20alkyl; or C3–C12-cycloalkyl; R5, R6 and R7 are each independently of the others C1–C20alkyl, C5–C10aryl, C1–C20alkoxy, phenyl-C1–C20alkyl, phenyl-C1–C20alkoxy, C2–C5alkenyl, —O—Si—(C1–C5alkyl)3; or O—Si—(C1–C5alkyl)2-O—Si(C1–C5alkyl)3 and n is 0 or 1.

Abstract: The use of benzyl alcohol derivatives of the formula CH2OH in which R, R2, R3, n and m have the meanings given in claim 1, as microbicidal active substances is described. The compounds exhibit a marked effect against pathogenic Gram-positive and Gram-negative bacteria. They are therefore suitable for the antimicrobial treatment, in particular preservation and disinfection, of surfaces.

Abstract: There are described 4-aminobut-2-ynecarboxylic acid derivatives of formula wherein R1 and R2 are each independently of the other hydrogen, C1-C20alkyl; C3-C12cycloalkyl; unsubstituted or C1-C5alkyl-, C3-C12cycloalkyl-, C1-C5alkoxy-, C3-C12cycloalkoxy-, halo-, oxo-, carboxy-, carboxy-C1-C7alkyl ester-, carboxy-C3-C12cycloalkyl ester-, cyano-, trifluoromethyl-, pentafluoroethyl-, amino-, N,N-mono- or di-C1-C20alkylamino- or nitro-substituted phenyl, phenyl-C1-C5alkyl, naphthyl and naphthyl-C1-C5alkyl; and R3 is C1-C20alkyl; C3-C12cycloalkyl. The compounds exhibit a pronounced activity against gram-positive and gram-negative bacteria, and also against yeasts and moulds.

Abstract: There are described silanyl phenols and naphthols of formula (1a) or (1b), wherein R1 is hydrogen; halogen; hydroxy; C1-C20alkyl; C3-C12cycloalkyl; C1-C20alkoxy; trifluoromethyl; pentafluoroethyl; mono- or di-C1-C5alkylamino; hydroxy-C1-C5alkyl; or phenyl, phenyl-C1C20alkyl, phenoxy, phenyl-C1-C20alkoxy, naphthyl or naphthyl-C1-C20alkyl each unsubstituted or substituted by C1-C5alkyl, C3-C12cycloalkyl, C1-C5alkoxy, C3-C12cycloalkoxy, halogen, oxo, carboxy, carboxy-C1-C7alkyl ester, carboxy-C3-C12cycloalkyl ester, cyano, trifluoromethyl, pentafluoroethyl, amino, N,N-mono- or di-C1-C20alkylamino or by nitro; R2, R3 and R4 are each independently of the others hydrogen; C1-C20alkyl; or C3-C12-Cycloalkyl; R5, R6 and R7 are each independently of the others C1-C20alkyl, C5-C10aryl, C1-C20alkoxy, phenyl-C1-C20alkyl, phenyl-C1-C20alkoxy, C2-C5alkenyl, —O—Si—(C1-C5alkyl)3; or O—Si—(C1-C5alkyl)2-O—Si(C1-C5alkyl)3 and n is 0 or 1.

Abstract: There are described 4-aminobut-2-ynecarboxylic acid derivatives of formula 1