Process for the preparation of nickel ylides containing ylide ligands with a sulfonated group V component
申请人:GULF RESEARCH & DEVELOPMENT COMPANY
公开号:EP0046332A2
公开(公告)日:1982-02-24
A process is provided for preparing nickel ylides which are themselves novel compounds defined by the following Formula I:
wherein R1, R2, R3, R4, R5, R6, R7 and R8 are either alike or different members selected from the group consisting of hydrogen, alkyl radicals having from about one to about 24 carbon atoms, preferably from about one to about 10 carbon atoms; aryl radicals having from about six to about 20 carbon atoms, preferably from about six to about 10 carbon atoms; alkenyl radicals having from about two to about 30 carbon atoms, preferably from about two to about 20 carbon atoms; cycloalkyl radicals having from about three to about 40 carbon atoms, preferably from about three to about 30 carbon atoms; aralkyl and alkaryl radicals having from about six to about 40 carbon atoms, preferably from about six to about 30 carbon atoms; a halogen radical selected from the group consisting of fluorine, chlorine, bromine and iodine, preferably chlorine; a hydroxyl group; an alkoxy or aryloxy group; a hydrocarbyl group, such as defined above, carrying halogen, hydroxyl or alkoxy or aryloxy; and a sulfonato group (-SO3-) or an alkyl, aryl, alkenyl, cycloalkyl, aralkyl or alkaryl group carrying a sulfonato group; provided that at least one of R,, R2 and R3 is a sulfonato group or an alkyl, aryl, alkenyl, cycloalkyl, aralkyl or alkaryl, as defined above, carrying a sulfonato group; M is sulfur or oxygen, preferably oxygen; E is phosphorus, arsenic, antimony or nitrogen, preferably phosphorus; and F is phosphorus, arsenic or antimony, preferably phosphorus. The process comprises reacting a ligand defined by the following formula:
with an alpha-substituted ketone or aldehyde or an alpha-substituted thioketone or thioaldehyde defined by the following formula:
to obtain the metal salt defined by the following Formula II:
wherein R1, R2, R3, R7, R8, F and M are as defined above and X is a halogen radical selected from the group consisting of fluorine, chlorine, bromine and iodine, preferably chlorine and bromine, a tosyl group (a tolune sulfonate group), or an acetate group. This metal salt is reacted with a base to obtain the novel ylide defined by the following Formula III:
wherein R1, R2, R3, R7, R8, F and M are as defined above. This ylide is then reacted with (1) a zero valent nickel compound and (2) a ligand having the formula:
wherein R4, R5, R6 and E are as defined above.
本发明提供了一种制备镍酰化物的工艺,镍酰化物本身是由下式 I 定义的新型化合物:
其中 R1、R2、R3、R4、R5、R6、R7 和 R8 要么是相同的成员,要么是不同的成员,它们选自由氢、具有约 1 至约 24 个碳原子(最好是约 1 至约 10 个碳原子)的烷基、具有约 6 至约 20 个碳原子(最好是约 6 至约 10 个碳原子)的芳基组成的组;具有约 2 至约 30 个碳原子,最好是约 2 至约 20 个碳原子的烯基; 具有约 3 至约 40 个碳原子,最好是约 3 至约 30 个碳原子的环烷基; 具有约 6 至约 40 个碳原子,最好是约 6 至约 30 个碳原子的芳基和烷芳基;卤素基,选自由氟、氯、溴和碘(最好是氯)组成的组;羟基;烷氧基或芳氧基;烃基,如上文所定义,带有卤素、羟基或烷氧基或芳氧基;以及磺酸基(-SO3-)或带有磺酸基的烷基、芳基、烯基、环烷基、芳烷基或烷芳基;条件是 R、R2 和 R3 中至少有一个是磺酸基或如上定义的带有磺酸基的烷基、芳基、 烯基、环烷基、芳烷基或烷芳基;M 是硫或氧,最好是氧;E 是磷、砷、锑或氮,最好是磷;F 是磷、砷或锑,最好是磷。该工艺包括将下式定义的配体与α-取代的酮反应:
与下式定义的α-取代酮或醛或α-取代噻酮或硫代醛反应,得到下式定义的金属盐:
得到下式 II 所定义的金属盐:
其中 R1、R2、R3、R7、R8、F 和 M 如上定义,X 是选自氟、氯、溴和碘(最好是氯和溴)、甲苯磺酰基或乙酸酯基的卤素基。这种金属盐与碱反应,可得到下式 III 所定义的新型矢量:
其中 R1、R2、R3、R7、R8、F 和 M 如上定义。然后将该锂盐与 (1) 一种零价镍化合物和 (2) 一种配体反应,配体的式为
其中 R4、R5、R6 和 E 如上定义。