Preparation of 5-aryloxy-1-chloro-3,3-dimethyl-2-pentanones
    98.
    发明授权
    Preparation of 5-aryloxy-1-chloro-3,3-dimethyl-2-pentanones 失效
    5-芳氧基-1-氯-3,3-二甲基-2-戊酮的制备

    公开(公告)号:US4495370A

    公开(公告)日:1985-01-22

    申请号:US498611

    申请日:1983-05-27

    摘要: A process for the preparation of a 5-aryloxy-1-chloro-3,3-dimethyl-2-pentanone of the formula ##STR1## in which R.sup.1 and R.sup.2 each independently is halogen, alkyl having 1 to 4 carbon atoms, alkoxy or alkylthio each having 1 to 2 carbon atoms, halogenoalkyl, halogenoalkoxy or halogenoalkylthio each having 1 to 2 carbon atoms and 1 to 5 halogen atoms, cyclohexyl, dialkylamino having 1 to 4 carbon atoms in each alkyl moiety, nitro, cyano, alkoxy-carbonyl having 1 to 4 carbon atoms in the alkyl moiety, phenyl or halophenyl, m and n each independently is an integer from 0 to 5, and m+n.ltoreq.5,comprising reacting 1,1,5-trichloro-3,3-dimethyl-1-pentene of the formula ##STR2## with a phenol of the formula ##STR3## in the presence of a base in a diluent, to produce a compound of the formula ##STR4## and subjecting such reaction product to acid hydrolysis.

    摘要翻译: 制备式“IMAGE”的5-芳氧基-1-氯-3,3-二甲基-2-戊酮的方法,其中R 1和R 2各自独立地为卤素,具有1至4个碳原子的烷基,烷氧基或 各自具有1至2个碳原子的烷硫基,各自具有1至2个碳原子和1至5个卤素原子的卤代烷基,卤代烷氧基或卤代烷硫基,环烷基,各烷基部分中具有1至4个碳原子的二烷基氨基,硝基,氰基, 烷基部分中的1至4个碳原子,苯基或卤代苯基,m和n各自独立地为0至5的整数,m + n <5,其包括使1,1,5-三氯-3,3- 具有式“IMAGE”的二甲基-1-戊烯与式VIIIa的苯酚在稀释剂中的碱存在下反应,生成下式的化合物,并使该反应产物进行酸水解。