申请人:American Cyanamid Company
公开号:US04390707A1
公开(公告)日:1983-06-28
A method for the preparation of cyclopentenones of the general formula (VIII): ##STR1## wherein n is 5-7, has been developed which proceeds via the acid catalyzed deprotection and rearrangement of novel substituted-.alpha.-hydroxymethylfurans of general formula (VII): ##STR2## wherein R is a hydroxyl protecting group, R.sub.1 and R.sub.2 are methyl or ethyl or together form --(CH.sub.2).sub.3 -- and n is as above described. Cyclopentenones of formula VIII are useful intermediates in prostaglandin analog synthesis.
已经开发了一种制备通式(VIII)的环戊酮的方法:##STR1## 其中n为5-7,该方法通过催化剂酸催化去保护和重排新的取代α-羟甲基呋喃的通式(VII):##STR2## 其中R是羟基保护基,R.sub.1和R.sub.2为甲基或乙基或一起形成--(CH.sub.2).sub.3--,n如上所述。通式VIII的环戊酮是前列腺素类似物合成中有用的中间体。