ISOLATION AND CHARACTERIZATION OF THE MOLYBDENUM ALKYLIDYNE COMPLEX [(F3C)ME(2)CO]MO-2(C-T-BU)[N(AR)P=C(H)(CME(2)PH)] AND ITS CONVERSION TOA PHOSPHAMOLYBDACYCLOBUTENE
Gm. Jamison et al., ISOLATION AND CHARACTERIZATION OF THE MOLYBDENUM ALKYLIDYNE COMPLEX [(F3C)ME(2)CO]MO-2(C-T-BU)[N(AR)P=C(H)(CME(2)PH)] AND ITS CONVERSION TOA PHOSPHAMOLYBDACYCLOBUTENE, Organometallics, 15(15), 1996, pp. 3244-3246
Novel molybdenum alkylidyne [(F3C)Me(2)-CO]Mo-2(C-t-Bu)[N(Ar)P=C(H)(CM
e(2)Ph)] (Ar = 2,6-(i-Pr)(2)C6H3; 3b) is formed in the reaction of ter
t-butylphosphaalkyne 2 with molybdenum alkylidene 1b. Alkylidyne 3b, w
hich contains a formal (phosphaalkenyl)amido ligand, rearranges quanti
tatively at elevated temperature to form the alkoxide-shifted phospham
olybdacyclobutene 4b. Complexes 3b and 4b have been fully characterize
d by spectroscopic and X-ray crystallographic analysis; cleavage of th
e P=C-t-Bu triple bond in complex 3b is confirmed.