“…Previously,
Occhiato, Coudert, and Sulikowski have reported isolated examples
of cross-couplings of vinyl triflate ( I , Figure 2, top), 7 vinyl phosphate
( II ), 9 and α-iodo enecarbarmate
( III ), 13 respectively, with
metalated coupling partners. 7 The instability of I , II , and III , as noted by the authors, 7,13 likely necessitated
the use of highly reactive metalated cross-coupling partners. The lability of the substrates under the coupling conditions,
and especially of the enecarbamate-derived products (due to their
proneness to ring-opening 7 ), diminishes
the practicality of these previously reported methodologies.…”