Synthesis of α-CN and α-CF3 N-Heterocycles through Tandem Nucleophilic Additions
摘要:
Using a readily available secondary aminoalkyne as starting material, a powerful strategy was discovered to prepare precursors of biologically important unnatural cyclic aminoacids and fluorinated N-heterocycles with important ring sizes (e.g., 5-7) in a one-pot reaction using two nucleophilic additions in a tandem fashion.
Synthesis of α-CN and α-CF3 N-Heterocycles through Tandem Nucleophilic Additions
摘要:
Using a readily available secondary aminoalkyne as starting material, a powerful strategy was discovered to prepare precursors of biologically important unnatural cyclic aminoacids and fluorinated N-heterocycles with important ring sizes (e.g., 5-7) in a one-pot reaction using two nucleophilic additions in a tandem fashion.
Synthetic evolutions in the nucleophilic addition to alkynes
作者:Bo Xu、Weibo Wang、Le-Ping Liu、Junbin Han、Zhuang Jin、Gerald B. Hammond
DOI:10.1016/j.jorganchem.2010.09.025
日期:2011.1
fluorine-engendered cationic gold catalysis. In addition, we have conducted the synthesis of O-heterocycles through a gold-catalyzed tandem addition/cycloisomerization sequence, the synthesis of N-heterocycles through a copper-catalyzed cyclization-triggered addition of alkynes, and a green synthesis of thioethers ‘on water’ without catalyst or initiator. These nucleophilic synthetic evolutions, catapulted by a simple
Highly Efficient Cu(I)-Catalyzed Synthesis of <i>N</i>-Heterocycles through a Cyclization-Triggered Addition of Alkynes
作者:Junbin Han、Bo Xu、Gerald B. Hammond
DOI:10.1021/ja908883n
日期:2010.1.27
An aminoalkyne (terminal or internal) and a terminal alkyne furnish functionalized five-, six-, and seven- membered N-heterocycles in excellent yields via a Cu(I)-catalyzed, one-pot, tandem hydroamination/alkynylation process.
Synthesis of α-CN and α-CF<sub>3</sub> N-Heterocycles through Tandem Nucleophilic Additions
作者:Junbin Han、Bo Xu、Gerald B. Hammond
DOI:10.1021/ol2011902
日期:2011.7.1
Using a readily available secondary aminoalkyne as starting material, a powerful strategy was discovered to prepare precursors of biologically important unnatural cyclic aminoacids and fluorinated N-heterocycles with important ring sizes (e.g., 5-7) in a one-pot reaction using two nucleophilic additions in a tandem fashion.