PROCESS FOR PREPARING ORGANIC COMPOUNDS BY A TRANSITION METAL-CATALYSED CROSS-COUPLING REACTION OF AN ARYL-X, HETEROARYL-X, CYCLOALKENYL-X OR ALKENYL-X COMPOUND WITH AN ALKYL, ALKENYL, CYCLOALKYL OR CYCLOALKENYL HALIDE
申请人:Sundermeier Mark
公开号:US20090247764A1
公开(公告)日:2009-10-01
A process for preparing organic compounds of the general formula (I)
R—R′ (I),
where
R is a substituted or unsubstituted aromatic, heteroaromatic, cycloalkenylic or alkenylic radical and
R′ is a substituted or unsubstituted alkylic, alkenylic, cycloalkylic or cycloalkenylic radical,
by reacting a corresponding compound of the general formula (II)
R—X (II),
where
X is chlorine, bromine, iodine, diazonium, mesylate (methanesulphonate), tosylate (p-toluenesulphonate) or triflate (trifluorosutphonate) and
R is as defined for formula (I),
with a corresponding compound of the general formula (III)
R′—Y (III),
where
Y is chlorine, bromine or iodine and
R′ is as defined for formula (I),
wherein the reaction is carried out in the presence of
a) stoichiometric amounts of elemental magnesium, based on the compound of the general formula (II), and
b) catalytic amounts of a transition metal compound, based on the compound of the general formula (II),
and, if appropriate,
c) in the presence of a nitrogen-, oxygen- and/or phosphorus-containing additive in a catalytic or stoichiometric amount, based on the compound of the general formula (II),
is described.
It is particularly advantageous that the process of the invention is carried out as a one-pot reaction and the organomagnesium compound (Grignard compound) formed in situ as intermediate is not isolated.
将通式(I)
R—R′ (I)的有机化合物制备方法,
其中
R是取代或未取代的芳香族、杂环芳族、环烯烃基或烯烃基,以及
R′是取代或未取代的烷基、烯烃基、环烷基或环烯烃基,
通过将通式(II)
R—X (II)的相应化合物与通式(III)
R′—Y (III)的相应化合物反应而得到,
其中
X是氯、溴、碘、重氮、甲磺酸基(甲磺酸甲酯)、对甲苯磺酸基或三氟甲磺酸基,以及
R如通式(I)中定义的那样,
Y是氯、溴或碘,以及
R′如通式(I)中定义的那样,
其中反应在以下条件下进行:
a)基于通式(II)的化合物,使用化学计量量的金属镁,
b)基于通式(II)的化合物,使用催化量的过渡金属化合物,
以及如有必要,
c)在存在氮、氧和/或磷含量的添加剂的情况下,使用催化量或化学计量量,基于通式(II)的化合物,
这一过程被描述为一种特别有利的发明,该过程作为一锅法反应进行,形成的有机镁化合物(格氏试剂化合物)作为中间体不被分离。