215254-46-9Relevant academic research and scientific papers
Tetravalent niobium alkyls and enolate stabilized by anionic organic amides
Ruppa, Kamalesh B.P.,Gambarotta, Sandro,Yap, Glenn P.A.
, p. 143 - 149 (1998)
The lithium amide [3,5-Me2PhN(Ad)]Li · Et2O reacts with NbCl4(THF)2 to give [3,5-Me2PhN(Ad)]3NbCl (1). Reactions of 1 with PhLi and MeLi produced the corresponding alkyl derivatives [3,5-Me2PhN(Ad)]3NbR (R=Ph (2a), Me (2b)). Attempts to prepare a neophyl niobium derivative led instead to the formation of the corresponding enolate [3,5-Me2PhN(Ad)]3Nb (OCH=CH2) (3), arising from the cleavage of THF.
