An un-forgotten classic: the nitro-Mannich reaction between nitrones and silyl nitronates catalysed by B(C<sub>6</sub>F<sub>5</sub>)<sub>3</sub>
作者:Michael G. Guerzoni、Yara van Ingen、Rasool Babaahmadi、Thomas Wirth、Emma Richards、Rebecca L. Melen
DOI:10.1039/d3sc05672d
日期:——
the B(C6F5)3-catalysed nitro-Mannich reaction between nitrones and silylnitronates, affording silyl-protected α-nitro hydroxylamines with yields up to 99% and diastereoselectivities up to 99 : 1. Crucially, the obtained products can be converted into 1,2-diamines under simple reductive conditions. This work provides a new orthogonal method to the existing routes for the instalment of a nitro moiety