申请人:Bayer Aktiengesellschaft
公开号:US04460793A1
公开(公告)日:1984-07-17
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, or R.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, and M 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.
用于生产一种单氯甲基酮的方法,其化学式为##STR1##,其中R.sup.1、R.sup.2和R.sup.3分别独立地是氢原子或可选择取代的烷基、烯基、炔基或芳基基团,或者R.sup.1和R.sup.2与它们连接的碳原子一起形成可选择取代的碳环,包括将化学式为##STR2##的1,1-二氯烯烃与化学式为##STR3##的苯酚酚盐反应,其中R.sup.4分别独立地是卤原子、硝基团或可选择取代的烷基、烷氧基或芳基基团,n为0、1、2或3,M为一当量的碱金属离子或碱土金属离子,从而获得苯醚中间体,然后使苯醚中间体经过酸水解。这些产物在杀菌剂合成中作为中间体是有用的。