Process for Preparing Mono-Carboxy-Functionalized Dialkylphosphinic Acids, Esters and Salts by Means of Alkylene Oxides and Use Thereof
申请人:Hill Michael
公开号:US20110245385A1
公开(公告)日:2011-10-06
The invention relates to a process for preparing mono-carboxy-functionalized dialkylphosphinic acids, dialkylphosphinic esters and dialkylphosphinic salts by means of alkylene oxides, characterized in that a) a phosphinic acid source (I) is reacted with olefins (IV) in the presence of a catalyst A to form an alkylphosphonous acid, its salt or ester (II), b) the resultant alkylphosphonous acid, its salt or ester (II) is reacted with alkylene oxides of the formula (V) in the presence of a catalyst B, to give a mono-functionalized dialkylphosphinic acid derivative (VI), and c) the resultant mono-functionalized dialkylphosphinic acid derivative (VI) is reacted in the presence a catalyst C to give the mono-carboxy-functionalized dialkylphosphinic acid derivative (III), where R
1
,R
2
,R
3
,R
4
,R
5
, and R
6
are identical or different and independently of one another are inter alia H, C
1
-C
18
-alkyl, C
6
-C
18
-aryl, C
6
-C
18
-aralkyl or C
6
-C
18
-alkylaryl, and X and Y are identical or different and independently of one another are H, C
1
-C
18
-alkyl, C
6
-C
18
-aryl, C
6
-C
18
-aralkyl, C
6
-C
18
-alkylaryl, Mg, Ca, Al, Sb, Sn, Ge, Ti, Fe, Zr, Zn, Ce, Bi, Sr, Mn, Cu, Ni, Li, Na, K and/or a protonated nitrogen base, and the catalysts A and C are transition metals and/or transition-metal compounds and/or catalyst systems which are composed of a transition metal and/or a transition-metal compound and at least one ligand, and the catalyst B is a Lewis acid.
本发明涉及一种通过使用环氧烷制备单羧基功能化二烷基膦酸、二烷基膦酸酯和二烷基膦酸盐的方法,其特征在于a)在催化剂A的存在下,将膦酸源(I)与烯烃(IV)反应,形成烷基膦酸、其盐或酯(II),b)在催化剂B的存在下,将所得的烷基膦酸、其盐或酯(II)与式(V)的环氧烷反应,得到单功能化的二烷基膦酸衍生物(VI),c)在催化剂C的存在下,将所得的单功能化的二烷基膦酸衍生物(VI)反应,得到单羧基功能化的二烷基膦酸衍生物(III),其中R1、R2、R3、R4、R5和R6相同或不同,且独立地是H、C1-C18烷基、C6-C18芳基、C6-C18芳基烷基或C6-C18烷基芳基,X和Y相同或不同,且独立地是H、C1-C18烷基、C6-C18芳基、C6-C18芳基烷基、C6-C18烷基芳基、Mg、Ca、Al、Sb、Sn、Ge、Ti、Fe、Zr、Zn、Ce、Bi、Sr、Mn、Cu、Ni、Li、Na、K和/或质子化的氮碱基,催化剂A和C是过渡金属和/或过渡金属化合物和/或由过渡金属和/或过渡金属化合物和至少一个配体组成的催化剂体系,而催化剂B是路易斯酸。