Readily available Cu(II) organometallic catalyst precursors allow the N-methylation of amines with CO2 and hydrosilanes to be efficiently performed.
C–N donors
The synthesis of nitrogen-containing heterocycles from β-aminovinyl esters(ketones) was reviewed according to the classification of the final heterocycle synthesis.
We present a simple and green method for the synthesis of differently substituted 2-pyridones via conjugated dienes as intermediates. The reactions require only SiO2 (Cs2CO3/SiO2), a small glass vial and a laboratory oven.
A visible-light-driven diversity-oriented synthesis of α-ketoester β-enamino esters, 3,3-difluoro-4-pyrrolin-2-ones, and 3-fluoro-3-pyrrolin-2-ones employing bromodifluoroacetates and β-enamino esters has been developed.
Phe–Lys dipeptide-linked amphiphilic LDBCs with ketal peripheries can serve as enzyme and pH dual responsive drug carriers with excellent biocompatibility.