In(OTf)3-catalyzed synthesis of 7-acylindoles and 2-aminoquinolines from ynamides and anthranils
作者:Xialei Chen、Hanjie Zhou、Jialu Jin、Chen Chen、Shiqing Liu、Guoying Qian、Zhouting Rong
DOI:10.1016/j.tetlet.2024.155054
日期:2024.5
A divergent transformation of ynamides with anthranils has been reported, which leads to the synthesis of various 7-acylindoles and 2-aminoquinolines in moderate to excellent yields. Indium(III) triflate is used as a cheap and readily available catalyst and the method exhibits high functional group tolerance.
Asymmetric synthesis of N-stereogenic molecules: diastereoselective double aza-Michael reaction
作者:Alex Lauber、Benjamin Zelenay、Ján Cvengroš
DOI:10.1039/c3cc48486f
日期:——
A novel approach towards the asymmetric synthesis of N-stereogenic molecules via double aza-Michael addition was developed. The diastereomeric ratio can be increased by a thermodynamically controlled isomerization mechanism. Simple separation and functionalization of the products afford N-stereogenic compounds in high enantiomeric purity.
Synthesis of Tröger’s Base Analogues via a Phase-Transfer-Catalyzed Double Aza-Michael Reaction under Base-Free Conditions
作者:Ján Cvengroš、Takuya Kamiyama、Lukas Sigrist
DOI:10.1055/s-0035-1562461
日期:——
Abstract The potential of phase-transfer catalysis in the synthesis of Tröger’s base analogues via a double aza-Michael addition has been evaluated. It has been observed that no external base is required and PTC may significantly enhance the efficiency of the process or control the selectivity. The potential of phase-transfer catalysis in the synthesis of Tröger’s base analogues via a double aza-Michael