lopentane-1,3-dione with methyl vinyl ketone, followed by amino-acid mediated cyclization of the resulting prochiral triketone, gives access to optically active (+) 2,3,7,7a - tetrahydro -7a- trifluoromethyl -1H- indene -1,5-(6H)-dione.
2-三
氟甲基-
环戊烷-1,3-二酮与甲基
乙烯基酮的迈克尔缩合,然后由
氨基酸介导,将所得的手性三酮环化,从而可以得到旋光的(+)2,3,7,7a-四氢- 7a-三
氟甲基-1 H-
茚-1,5-(6 H)-二酮。