申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20040225145A1
公开(公告)日:2004-11-11
There is provided a process for producing a phosphite of the formula (I):
1
wherein R
1
, R
2
, R
4
and R
5
each independently represent
a hydrogen atom, a C1-8 alkyl group, a C5-8 cycloalkyl group,
a C6-12 alkylcycloalkyl group, a C7-12 aralkyl group or
a phenyl group or a phenyl group substituted with an alkyl or an alkoxy group;
R
3
represents a hydrogen atom or a C1-8 alkyl group;
A represents a C2-8 alkylene group or a *—C(═O)— or *—C(═O)—R
7
— group in which R
7
represents a C1-8 alkylene group, and the bond marked with* is the bond connected with the oxygen atom; and
one of Y and Z represents a hydroxyl group, a C1-8 alkoxy group or a C7-12 aralkyloxy group and the other one represents a hydrogen atom or a C1-8 alkyl group.
提供了一种制备式(I)磷酸酯的方法,其中R1、R2、R4和R5各自独立地表示氢原子、C1-8烷基、C5-8环烷基、C6-12烷基环烷基、C7-12芳基烷基或苯基或被烷基或烷氧基取代的苯基;R3表示氢原子或C1-8烷基;A表示C2-8烷基或*—C(═O)—或*—C(═O)—R7—,其中R7表示C1-8烷基,标记为*的键连接着氧原子;Y和Z中的一个表示羟基、C1-8烷氧基或C7-12芳基烷氧基,另一个表示氢原子或C1-8烷基。