申请人:The United States of America as represented by the Secretary of
公开号:US04723038A1
公开(公告)日:1988-02-02
Processes for preparing compounds which exhibit seed germinating activity are disclosed. An ester of acetoacetic acid is condensed with a ketone to produce a substituted cyclohexenone which is reacted with a thiol to get a dithioketal which is then desulfurized to produce an ester of a substituted cyclohex-2-ene-1-carboxylic acid which exhibits seed germinating activity. The same compound can be produced by a different process which reacts the substituted cyclohexenone with a reducing agent. An exemplary reducing agent would be an organosilane and a Lewis acid.
披露了制备具有种子萌发活性化合物的过程。乙酰乙酸酯与酮缩合,产生取代环己烯酮,然后与硫醇反应得到二硫醚醛,再去硫化产生一种展现种子萌发活性的取代环己-2-烯-1-羧酸酯。同样的化合物也可以通过另一种方法制备,即将取代环己烯酮与还原剂反应。一个示范性的还原剂可以是有机硅烷和路易斯酸。