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    • 3. 发明申请
    • PROCESS FOR PRODUCING ISOMER MIXTURES FROM O-PHENOXYALKYLHYDROXYL AMINES OR O-PHENOXYALKYLOXIMES
    • 用于生产的异构体混合物ØPHENOXYALKYLHYDROXYLAMINEN或o phenoxyalkyloximes
    • WO1995030648A1
    • 1995-11-16
    • PCT/EP1995001581
    • 1995-04-26
    • BASF AKTIENGESELLSCHAFTRANG, HaraldGÖTZ, NorbertHARREUS, AlbrechtBORCHERS, DirkHARTMANN, HorstMAYWALD, VolkerHEIMANN, FrankBUSCHULTE, Thomas
    • BASF AKTIENGESELLSCHAFT
    • C07C239/20
    • C07C239/20C07C249/12C07C309/66
    • A process is disclosed for producing isomer mixtures from O-phenoxyalkylhydroxyl amines Ia: H2N-O-CH2-CH(R )-O-Ar and Ib: H2N-O-CH(R )-CH2-O-Ar (wherein R represents alkyl, Ar where appropriate a substituted phenyl) and the corresponding salt mixtures. This process involves the following steps: (a) an isomer mixture of O-(2-hydroxyethyl)-oximes (IIa) and (IIb) (in which R is an alkyl and R is an alkyl or alkoxy, or R and R together with the common C atom form a 5-7 member ring) is converted by reaction with a sulphonyl halogenide of formula (III): Hal-SO2-R (wherein R represents an organic group and Hal is a halogen) in the presence of a base to form the corresponding sulphonate mixture of (IVa) and (IVb); (b) this sulphonate mixture is reacted in the presence of a base with a phenol of formula (V): HO-Ar to produce a mixture of O-phenoxyalkyloximes of general formulae (VIa) and (VIb); (c) the mixture is hydrolysed in the presence of an acid and, if required, (d) the O-phenoxyalkylhydroxyl amines (Ia) and (Ib) are released from the resulting salts using a mineral base. The O-phenoxyalkylhydroxyl amines (Ia/Ib) and their precursors (VIa/VIb) are important intermediate products for plant protective agents and drugs.
    • 的异构体的混合物的制备O型Phenoxyalkylhydroxylaminen(Ia)中:H 2 N-O-CH2-CH(R <1>) - O-Ar和(Ib)中:H 2 N-O-CH(R <1>) - CH2-O-氩 (R <1> =烷基; Ar为SUBST GEG苯基..)以及相应的盐的混合物,通过一)肟的异构体混合物O-(2-羟基乙基)(IIa)和(IIb)的(R <2> = 烷基,并且R <3> =烷基,烷氧基,或R <2>和R <3>使用通用C原子= 5-至7-元环)化合物与式(III)的磺酰卤一起:哈尔-SO 2 -R <4> <4>是且其中R是有机基团,Hal是卤素,在碱存在下的成的(IVa)的磺酸盐的相应的混合物和(IVb)中被转换,b)磺酸酯的混合物在碱的存在下与酚 式(V):HO-氩气,于通式(VIA)和(VIb)的O- phenoxyalkyloximes的混合物反应,c)中将该混合物水解在酸的存在下和,如果需要的话,d)从所述发生的盐,所述O- phenoxyalkylhydroxylamines(Ia)和(Ib)的装置矿工芭 Ë版本。 O型phenoxyalkylhydroxylamines(IA / IB)及其前体(VIA /ⅥB)是作物保护剂和药物的重要中间体。