1539-32-8Relevant articles and documents
CeCl3·7H2O-Catalyzed One-Pot Synthesis of Hantzsch 1,4-Dihydropyridines at Room Temperature
Sabitha, Gowravaram,Arundhathi,Sudhakar,Sastry,Yadav
, p. 2843 - 2851 (2009)
An efficient synthesis of a series of 1,4-dihydropyridines was accomplished at room temperature by the reaction of aldehydes with ammonium acetate and ethyl acetoacetate catalyzed by CeCl3·7H2O.
Visible-light-mediated alkylation of 4-alkyl-1,4-dihydropyridines with alkenyl sulfones
Dong, Jianyang,Liu, Yuxiu,Wang, Qingmin,Yue, Fuyang
supporting information, p. 8924 - 8928 (2021/11/04)
Herein we report a mild, general protocol for visible-light-mediated alkylation of 4-alkyl-1,4-dihydropyridines with alkenyl sulfones. The protocol permits efficient functionalization of sulfones with a broad range of cyclic and acyclic secondary and tert
Visible-light-mediated minisci C-H alkylation of heteroarenes with 4-alkyl-1,4-dihydropyridines using O2as an oxidant
Dong, Jianyang,Liu, Yuxiu,Song, Hongjian,Wang, Qingmin,Xu, Wentao,Yue, Fuyang
supporting information, p. 5599 - 5604 (2020/09/21)
Herein, we report a protocol for direct visible-light-mediated Minisci C-H alkylation reactions of N-heteroarenes with 4-alkyl-1,4-dihydropyridines at room temperature with molecular oxygen as an oxidant. The protocol permits efficient functionalization of various N-heteroarenes with a broad range of cyclic and acyclic primary, secondary, and tertiary alkyl groups and is scalable to the gram level. This mild protocol uses an inexpensive, green oxidant and is suitable for late-stage C-H alkylation of complex nitrogen-containing molecules. We demonstrated its utility by preparing or functionalizing several pharmaceuticals and natural products.