112536-76-2Relevant academic research and scientific papers
Conjugate Addition of Acetylides to Complexes of Type > (M=Cr, Mo, or W): Crystal Structure of >formed by the Base-catalysed Isomerization of CPh>>
Hassan, Fatma S. M.,Shaw, Bernard L.,Thornton-Pett, Mark
, p. 89 - 92 (2007/10/02)
Although treatment of > with Li(C)CPh resulted in no conjugate addition, in the presence of Me2NCH2CH2NMe2 smooth addition occurred to give CPh>> (1c).Similar additions were effected with the corresponding complexes of Cr and other acetylides, Li(CCR) where R=C6H4Me-p, Me, Prn, or Bun, underwent addition.Treatment of CPh>> with KOBut in PriOH gave the dienephosphine comples > (2a); the p-tolylacetylide complex > was also prepared.Crystals of compound (2a) are monoclinic, space group P21/c with a=988.4(3), b=1069.7(2), c=3233.7(4) pm, β=94.73(2) deg, and Z=2; final R=0.0334 and R'=0,0316 for 3929 observed reflexions.Hydrogen-1 and 31P- n.m.r. and i.r. data are given.
