... Tetrahedron Letters. Volume 45, Issue 24, 7 June 2004, Pages 4673–4676. ... It is noted that p-anisaldehyde previously described as a slow reacting aldehyde in the Baylis–Hillman reaction was found to give satisfactory yield in [bdmim][PF 6 ] after only 24 h (65%, entry 5). 6 As ...