公开(公告)号：EP0735999A1

公开(公告)日：1996-10-09

申请号：EP95902595.0

申请日：1994-11-15

申请人： THE DOW CHEMICAL COMPANY

发明人： LYSENKO, Zenon ,  PEWS, Richard, Garth

IPC分类号： C07C39 ,  C07C37 ,  C07C201 ,  C07C205 ,  C07C213 ,  C07C215

CPC分类号： C07C201/12 ,  C07C213/02 ,  C07C213/10 ,  C07C215/80 ,  C07C205/23 ,  C07C205/37 ,  C07C205/38

摘要： The present invention relates to a method of cleaving arylethers such as arylethers represented by formula (I), wherein R is hydrogen, C1-C6 alkyl, cycloalkyl, phenyl, substituted phenyl or CH=CH2; each A is independently NO2, hydroxy, halo, or methoxy; n is an integer from 0 to 5; and x is 1 or 2, comprising contacting the arylether with an amide hydrohalide salt under conditions sufficient to cleave the ether group(s) of the arylether and form a phenol or substituted phenol. The present invention also relates to a method of preparing 4,6-diaminoresorcinol, which is a monomer used for making polybenzoxazoles (PBO).

摘要翻译： 本发明涉及裂解芳基醚如由式（I）表示的芳基醚的方法，其中R为氢，C 1 -C 6烷基，环烷基，苯基，取代的苯基或CH = CH 2; 每个A独立地是NO 2，羟基，卤素或甲氧基; n是0至5的整数; x为1或2，所述方法包括在足以裂解芳基醚的醚基团并形成酚或取代苯酚的条件下使芳基醚与酰胺氢卤化物盐接触。 本发明还涉及制备4,6-二氨基间苯二酚的方法，其是用于制备聚苯并恶唑（PBO）的单体。

公开(公告)号：EP0736000A1

公开(公告)日：1996-10-09

申请号：EP95903562.0

申请日：1994-11-15

申请人： THE DOW CHEMICAL COMPANY

发明人： LYSENKO, Zenon ,  PEWS, Richard, Garth ,  VOSEJPKA, Paul

IPC分类号： B01J23 ,  C07B61 ,  C07C205 ,  C07C213 ,  C07C215

CPC分类号： C07C213/02

摘要： A method of producing 4,6-diaminoresorcinol comprising: a) reducing a dinitroarylether of formula (I), wherein R is hydrogen, C1-C6 alkyl, cycloalkyl or CH=CH2, R' is hydrogen or CH2-R, each A is independently Cl, Br, or l, and n is 0, 1 or 2; to form a diaminoarylether; and b) cleaving the ether group(s) from the diaminoarylether under conditions such that 4,6-diaminoresorcinol is formed as a salt or other stabilized form thereof.