Conventional Tetrakis(triphenylphosphine)palladium-Copper(I) Iodide-Catalyzed Sonogashira Coupling of Free and BOC- Protected Propargylic Amines “On Water”
作者:Bartomeu Soberats、Luis Martínez、Manuel Vega、Carmen Rotger、Antoni Costa
DOI:10.1002/adsc.200900240
日期:——
Alkynylation of aryl iodides with propargylicamines has been achieved by means of a Sonogashiracoupling using “on water” methods. The use of less than 0.2 mol% of tetrakis(triphenylphosphine)palladium [Pd(PPh3)4] and 1.5 mol% copper(I) iodide [CuI] in the presence of diisopropylethylamine (DIPEA) allows the coupling to proceed at 95 °C yielding moderate to good yields of mono-, bis-, and tris-aminoalkynylbenzene
Macrocyclic Tetraimines: Synthesis and Reversible Uptake of Diethyl Phthalate by a Porous Macrocycle
作者:Elena Sanna、Eduardo C. Escudero-Adán、Carlos López、Pablo Ballester、Carmen Rotger、Antonio Costa
DOI:10.1021/acs.joc.6b00768
日期:2016.6.17
The imine bond has attracted much attention for the synthesis of macrocycles used to construct porous materials. In the present article, we report on the synthesis of two series of isomeric macrocyclic tetraimines based on bis-alkynylbenzene diamines. Under heterogeneous solid–liquid conditions the condensation of the diamines with isophthalaldehyde or terephthaldehyde afforded mainly the corresponding