91780-95-9Relevant academic research and scientific papers
Methathesis of molybdenum-molybdenum triple bonds with acetylenes to give alkylidyne complexes
Strutz,Schrock
, p. 1600 - 1601 (2008/10/08)
Mo2(OCMe3)6 reacts with phenylacetylene in pentane to produce Mo(CPh)(OCMe3)3 in ～60% yield (by 1H NMR) in ～2 h. It can be isolated by sublimation in ～30% yield. In the presence of quinuclidine (quin) Mo2(OCMe3)6 reacts with phenylacetylene to yield an inseparable 1:1 mixture of Mo(CPh)(OCMe3)3(quin) and Mo(CH)(OCMe3)3(quin) in a combined yield of ～60%. Analogous reactions between Mo2(OCMe3)6 and 1-pentyne in the presence of quinuclidine yield oily 1-pentyne oligomers containing a mixture of Mo(CPr)(OCMe3)3(quin) and Mo(CH)(OCMe3)3(quin) in ～50% yield (by 1H NMR). In the absence of quinuclidine only Mo(CPr)(OCMe3)3 is observed by NMR in the oily product mixture. Addition of acetylene to Mo2(OCMe3)6 yields what we propose to be Mo2(OCMe3)6(μ-C2H2), which upon attempted recrystallization loses acetylene to reform Mo2(OCMe3)6.
