Copper(II) triflate mediated three-component [4+2]-cycloaddition reactions between anilines, benzaldehydes and trans-anethole or trans-isoeugenol are reported. A simple and efficient one-pot method for the synthesis of diverse 2,4-diaryl-1,2,3,4-tetrahydroquinolines under mild conditions in the presence of catalytic amounts (10 mol %) of Cu(OTf)2 was developed. Attempts toward an asymmetric imino Diels-Alder reaction are discussed.
报道了
铜(II)
三氟甲磺酸盐介导的三组分[4+2]环加成反应,涉及
苯胺、
苯甲醛与反式
茴香脑或反式异丁子香油的反应。开发了一种简便高效的一锅法,在温和条件下,仅需催化量(10 mol%)的Cu(OTf)2,即可合成多种2,4-二芳基-
1,2,3,4-四氢喹啉。同时讨论了不对称
亚胺Diels-Alder反应的尝试。