A novel β-(oxy)alkyl radical during copper(I)-mediated stereoselective synthesis of (Z)-ene-1,4-diones in a reaction of 2,2,2-trichloro-1-phenylethanone
作者:Ram N. Ram、Ram K. Tittal
DOI:10.1016/j.tetlet.2016.04.080
日期:2016.6
novel β-(oxy)alkyl radical derived from trichloro methyl compound containing neither a suitably located C–C multiple bond nor a leaving group or a H-atom at the β-position of the radical in a reaction of 2,2,2-trichloro-1-phenyl-ethanone with 2 mol equiv each of CuCl and bpy in refluxing DCE under a N2 atm underwent intramolecular heterolysis (just like formation of intact radical cation–anion pair)
由三氯甲基化合物衍生的新型β-(氧)烷基,在2,2,2的反应中,该基团的β-位上既不存在适当定位的CC多重键,也不包含离去基团或H原子在N 2 atm下回流的DCE中,CuCl和bpy各自具有2 mol当量的-三氯-1-苯基乙酮在立体选择性自由基二聚为Z -ene-1时经历分子内杂化(就像形成完整的自由基阳离子-阴离子对一样)。,4-二酮与少量的还原性脱氯产物。通过各种固体晶体产物的X射线衍射光谱法建立了立体化学。