New beta-pyrimidinyl- and triazinyl-oxy(thio)-cycloalkanol derivs. - selective herbicides, plant growth regulators and fungicides

摘要

(A) Substd. beta-pyrimidinyloxy(thio) and beta-triazinyloxy(thio)cycloalkanol derivs. of formula (I) and their alkali metal salts, alkaline earth metal salts, ammonium salts or organic susbtd. ammonium salts and their optically active isomers are new. R1 = H, 1-4C alkyl, 1-4C alkoxyalkyl, benzyl (opt. susbtd. by 1-4C alkyl, halo(1-4C)alkyl, 1-4C alkoxy, halogen or NO2) or COR2, CO2R2 or SO2R2. R2 = 1-18C alkyl, halo (1-4C) alkyl, Ph or benzyl (these last 2 opt. substd. by 1-4C alkyl, halo (1-4C)alkyl, 1-4C alkoxy, halogen or NO2); R3 H, 1-10C alkyl, 2-10C alkenyl or 2-10C (these 3 opt. mono- or poly- substd. by opt. different 1-4C alkoxy, 1-4C alkylthio, amino, 1-4C alkylamino, di(1-4C)alkylamino, NO2, halogen or Ph gps), 3-8C cycloalkyl or 4-8C cycloalkenyl (these 2 opt. mono- or poly substd. by opt. different 1-4C alkyl, 1-4C alkoxy, 1-4C alkylthio, amino, 1-4C alkyl amino, di(1-4C)alkylamino, NO2, CF3, halogen or Ph gps.). or Ph; R5 and R6 - 1-4C alkyl, halo(1-4C) alkyl, 1-4C alkoxy, halo (1-4C) alkoxy, 1-4C alkoxy (1-4C)-alkyl, 1-4C alkylthio, 1-4C alkylamino, di(1-4C)-alkylamino or halogen; A = -(CR7R8)-; B = -(CR9R10)b-; D = -(CR11R12)d; E = -(CR13R14)e; F = -(CR15R16)f; G = -(CR17R18)g; R7-R18 = as described for R3 and R4; b, d, e, f and g = 0 or 1; X = O or S; Y = -CH= or -N=. (B) Intermediates of formula (II) are also new. Z = OV, where V = a suitable protecting gp. such as tert. butyldimethyl silyl or triphenylmethyl (IIa) or Z = a suitable leaving gp. such as halogen, alkylsulphonyloxy, haloalkylsulphonyloxy or phenylsulphonyloxy. USE/ADVANTAGE - (I) are selective herbicides effective against broad leaved weeds and grasses in various crops such as rape, soybeans, cotton, wheat, fruit trees, tea plants, etc. Suitable amts. for use are 0.001-5 kg/ha. (I) are also defoliants and desiccants and plant growth regulators. Some (I) are fungicides, (IIa) and (IIb) are intermediates in the prepn. of (I).