申请人:LINDE AG
公开号:US20140228594A1
公开(公告)日:2014-08-14
A method for purifying a crude PNPNH compound of the general structure
R
1
R
2
P—N(R
3
)—P(R
4
)—N(R
5
)—H
wherein R
1
, R
2
, R
3
, R
4
and R
5
are independently halogen, amino, trimethylsilyl, C
1
-C
10
-alkyl, substituted C
1
-C
10
-alkyl, C
6
-C
20
-aryl and substituted C
6
-C
20
-aryl, or any cyclic derivative wherein at least one of the P or N atoms of the PNPN—H structure is a member of a ring system, the ring system being formed from one or more constituent compounds of the PNPNH-structure by substitution, the method comprising the steps: A. a) dissolving the crude PNPNH-compound in a C
1
-C
10
alcohol or mixture thereof under heating; b) cooling the solution obtained in step a), c) precipitating the PNPNH compound, separating and optionally drying, or B. (i) washing the crude PNPNH compound with C
1
-C
10
alcohol or a mixture thereof, (ii) separating the PNPNH compound and optionally drying thereof.
一种用于纯化具有一般结构R1R2P-N(R3)-P(R4)-N(R5)-H的粗PNPNH化合物的方法,其中R1、R2、R3、R4和R5独立地为卤素、氨基、三甲基硅基、C1-C10烷基、取代C1-C10烷基、C6-C20芳基和取代C6-C20芳基,或任何环状衍生物,其中PNPN-H结构的至少一个P或N原子是环系统的成员,所述环系统由PNPNH结构的一个或多个成分化合物通过取代形成,所述方法包括以下步骤:A. a) 在加热下将粗PNPNH化合物溶解于C1-C10醇或其混合物中;b) 冷却步骤a)中得到的溶液;c) 沉淀PNPNH化合物,分离并可选地干燥,或B. (i) 用C1-C10醇或其混合物洗涤粗PNPNH化合物,(ii) 分离PNPNH化合物并可选地干燥。