Preparation of monochloromethyl ketones
    6.
    发明授权
    Preparation of monochloromethyl ketones 失效
    单氯甲基酮的制备

    公开(公告)号:US4460793A

    公开(公告)日:1984-07-17

    申请号:US329959

    申请日:1981-12-11

    摘要: A process for the production of a monochloromethyl ketone of the formula ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 each independently is a hydrogen atom or an optionally substituted alkyl, alkenyl, alkinyl or aryl radical, orR.sup.1 and R.sup.2 together with the carbon atom to which they are attached form an optionally substituted carbocyclic ring,comprising reacting a 1,1-dichloroalkene of the formula ##STR2## with a phenolate of the formula ##STR3## in which R.sup.4 each independently is a halogen atom, a nitro group, or an optionally substituted alkyl, alkoxy or aryl radical,n is 0, 1, 2 or 3, andM is one equivalent of an alkali metal ion or alkaline earth metal ion,thereby to obtain a phenyl ether intermediate, and then subjecting the phenyl ether intermediate to an acid hydrolysis. The products are useful as intermediates in the synthesis of fungicides.

    摘要翻译: 制备式“IMAGE”的单氯甲基酮的方法,其中R 1,R 2和R 3各自独立地为氢原子或任选取代的烷基,烯基,炔基或芳基,或R 1和R 2与碳原子一起 它们所连接的化合物形成任选取代的碳环,包括使式IMAMA的1,1-二氯链烯与式(Ⅰa)的酚盐反应,其中R 4各自独立地为卤原子,硝基或 任选取代的烷基,烷氧基或芳基,n为0,1,2或3,M为1当量碱金属离子或碱土金属离子,从而得到苯基醚中间体,然后使苯基醚 中间体进行酸水解。 该产品可用作合成杀真菌剂的中间体。

    Preparation of 5-aryloxy-1-chloro-3,3-dimethyl-2-pentanones
    9.
    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。