1351707-96-4Relevant articles and documents
Chiral 2-aminobenzimidazole as bifunctional catalyst in the asymmetric electrophilic amination of unprotected 3-substituted oxindoles
Benavent, Lloren,Baeza, Alejandro,Freckleton, Megan
, (2018)
The use of readily available chiral trans-cyclohexanediamine-benzimidazole derivatives as bifunctional organocatalysts in the asymmetric electrophilic amination of unprotected 3-substituted oxindoles is presented. Different organocatalysts were evaluated;
Organocatalytic asymmetric α-amination of unprotected 3-aryl and 3-aliphatic substituted oxindoles using di-tert-butyl azodicarboxylate
Zhou, Feng,Ding, Miao,Liu, Yun-Lin,Wang, Cui-Hong,Ji, Cong-Bin,Zhang, Yi-Yu,Zhou, Jian
supporting information; experimental part, p. 2945 - 2952 (2012/01/02)
The bifunctional quinine-derived thiourea catalyst 14 was found to catalyze the direct amination of unprotected 3-aryl and aliphatic substituted oxindoles with di-tert-butyl azodicarboxylate (DBAD) to construct a tetrasubstituted stereogenic carbon center at the C-3 position of oxindoles in good to excellent yield and enantioselectivity. Copyright
