Carbonylative cross-coupling reaction of aryl iodides with alkylaluminums by palladium complex catalysis
作者:Yoshiaki Wakita、Tomoyuki Yasunaga、Masaharu Kojima
DOI:10.1016/0022-328x(85)80118-2
日期:1985.6
and/or tertiary alcohols and unsymmetrical ketones have been obtained in moderate to good yields by the palladium-catalyzed (5 mol%) carbonylative coupling of aryl iodides with alkylaluminum compounds under very mild conditions (20–50°C, 1 atm of carbon monoxide). The type of the reaction product depended on the aluminum reagent employed. While the selective formation of secondary alcohols was observed
在非常温和的条件下(20–50°C,1 atm的碳),通过钯催化(5 mol%)芳基碘化物与烷基铝化合物的羰基化偶联,可以中等至良好的产率获得仲和/或叔醇和不对称酮。一氧化碳)。反应产物的类型取决于所用的铝试剂。尽管在与i-Bu 3 Al的反应中观察到了仲醇的选择性形成,但Et 3 Al的使用却导致了酮和两种醇产物的混合物。与Et 2AlCl主要产生不对称酮。在所有情况下,均未观察到直接交叉偶联产物的形成。可以使用DME和苯作为溶剂,但不适合使用THF。发现镍催化剂对该反应无效。