bromides afforded β-arylated α,α-dichloroketimines in good yields. The latter imines could be easily transformed to the corresponding alkynyl imines, a synthetically important class of compounds, via 1,2-elimination of HCl upon treatment with 2 equiv of sodium hydride in DMSO or potassium tert-butoxide in THF.
用苄基
溴将α,α-二
氯酮亚胺烷基化可得到高产率的β-芳基化α,α-二
氯酮亚胺。通过用2当量的氢化
钠的
DMSO溶液或
叔丁醇钾的THF溶液处理,通过1,2-消除HCl,可以将后者的
亚胺容易地转化成相应的炔基
亚胺,这是一类重要的合成化合物。