ja8b09677_si_002.cif (489.03 kB)
Nickel-Catalyzed Reductive [2+2] Cycloaddition of Alkynes
dataset
posted on 2018-12-05, 00:00 authored by Santiago Cañellas, John Montgomery, Miquel À. PericàsThe nickel-catalyzed synthesis of
tetrasubstituted cyclobutenes
from alkynes is reported. This transformation is uniquely promoted
by the use of a primary aminophosphine, an unusual ligand in nickel
catalysis. Mechanistic insights for this new transformation are provided,
and postreaction modifications of the cyclobutene products to stereodefined
cyclic and acyclic compounds are reported, including the synthesis
of epi-truxillic acid.