118968-17-5Relevant academic research and scientific papers
A high yield route to rhenium(VII) bis(imido) neopentylidene complexes
Horton,Schrock,Freudenberger
, p. 893 - 894 (1987)
The reaction between ReO3(OSiMe3) and ArNCO (Ar = 2,6-diisopropylphenyl) yields what is believed to be a mixture of Re2Ox (NAr)7-x complexes, one of which, Re2O2(NAr)5 (1), can be isolated in ～30% yield. Pure 1, or the crude mixture, when treated with 3 equiv of py·HCl (py = pyridine) yields Re(NAr)2(Py)Cl3 (2) in 70-80% isolated yield vs. ReO3(OSiMe3). Addition of 0.65 equiv of Zn(CH2-t-Bu)2 to 2 yields Re(NAr)2(CH2-t-Bu)Cl2 (3) in 75% isolated yield. Dehydrohalogenation of 3 with DBU yields Re(NAr)2(CH-t-Bu)Cl (4) virtually quantitatively, which can be treated with LiOR (OR = OCH(C-F3)2 or O-2,6-C6H3-i-Pr2) to give relatives of the type Re-(NAr)2(CH-t-Bu)(OR) (5). Compounds 4 and 5 are very soluble, presumably monomeric, 18-electron complexes that do not react with cis-2-pentene or norbornene.
