Reductive intramolecular coupling of phthalimides with esters and ketones by low-valent titanium
作者:Naoki Kise、Tatsuhiro Manto、Toshihiko Sakurai
DOI:10.1016/j.tet.2020.131725
日期:2020.12
The reductive intermolecular coupling of phthalimides with esters by low-valent titanium gave five-, six-, and seven-membered cyclized products as α-hydroxyketones and their further reduced ketones. The obtained cyclized products were transformed to alkylideneisoindolin-1-ones. The reductive intermolecular coupling of phthalimides with ketones by low-valent titanium also gave five-, six-, and seven-membered
低价钛将邻苯二甲酰亚胺与酯进行还原性分子间偶联,得到五元,六元和七元环化产物,为α-羟基酮,并进一步还原为酮。将获得的环化产物转化为亚烷基异吲哚啉-1-酮。低价钛将邻苯二甲酰亚胺与酮进行还原性分子间偶联,也一步一步得到了五元,六元和七元环化产物,即亚烷基异吲哚啉-1-酮。