作者:Masanori Takimoto、Kazuya Shimizu、Miwako Mori
DOI:10.1021/ol016585z
日期:2001.10.1
terminal alkynes via a carbon dioxide fixation process was investigated. In the presence of a stoichiometric amount of a zero-valent nickel complex, the reaction of alkynes with CO2 gave a nickelacycle, which was reacted with various organozinc reagents under very mild conditions to provide beta,beta'-disubstituted, alpha,beta-unsaturated carboxylic acids in a highly regio- and stereoselective manner
[反应:请参见文字]。研究了镍通过二氧化碳固定过程促进的末端炔烃的烷基化或芳基化羧化反应。在化学计量的零价镍络合物的存在下,炔烃与CO2的反应产生了镍环,其在非常温和的条件下与各种有机锌试剂反应,以提供β,β'-二取代,α,β-不饱和键以高度区域选择性和立体选择性的方式生成羧酸。