作者:In Howa Jeong、Sung Lan Jeon、Myong Sang Kim、Bum Tae Kim
DOI:10.1016/j.jfluchem.2004.09.021
日期:2004.11
stereospecifically or high stercoselectively in 31–92% yields from the reaction of Weinreb amides with trifluoropropynyl lithium, followed by quenching with H2O in the presence of amine derivatives. β-Trifluoromethylated enaminone 1a was reacted with aryl or alkynyl Grignard reagents to give Michael addition products 5 at 0 °C, whereas addition–elimination adducts, β-aryl (or alkynyl)-β-trifluoromethylated
从Weinreb酰胺与三氟丙炔基锂反应,然后在胺衍生物存在下,用H 2 O淬灭,以31-92%的产率立体定向或高立体选择性地制备β-三氟甲基化的烯胺酮1。β-三氟甲基化的烯胺酮1a与芳基或炔基格氏试剂在0°C下反应,得到迈克尔加成产物5,而加成-消除加合物β-芳基(或炔基)-β-三氟甲基化的烯酮6在50-在室温下搅拌数小时后,产率为92%。