475681-73-3Relevant academic research and scientific papers
Lithium, potassium, and tin(II) complexes of novel 3-(iminophosphorano)-1-phosphaallyl and 2-(iminophosphorano)-1-phosphaallyl ligands
Wang, Zhong-Xia,Li, Ye-Xin
, p. 4641 - 4647 (2002)
Reaction of Ph2P(C≡CBut)=NSiMe3 (1) with KP(H)Ph afforded 3-(iminophosphorano)-1-phosphaallyl potassium, [K{P(Ph)C(But)=C(H)P(Ph)2=NSiMe3}(OEt2 )3] [3·(OEt2)3], which was recrystallized from Et2O to give a solvent-free complex, [K{P(Ph)C(But)=C(H)P(Ph)2=NSiMe3}]∞ (3). Treatment of Me2P(C≡CPh)=NSiMe3 (2) with LiP(R)Ph (R = H, SiMe2But) formed 2-(iminophosphorano)-1-phosphaallyllithium, [Li{P(Ph)C{=C(R)Ph}P(Me)2=NSiMe3}-(THF)n] (R = H, n = 1.5, 4; R = SiMe2But, n = 2, 5), via a hydrogen or SiMe2But group 1,3-P → C migration. Reaction of 4 or 5 with SnCl2 in 2:1 ratio in Et2O yielded P, N-chelating tin(II) complexes [Sn{P(Ph)C{=C(R)Ph}P(Me)2=NSiMe3}2] (R = H, 6; R = SiMe2But, 7). Complex 6 was also obtained by treatment of ClSnN(SiMe3)2 with 1 equiv of 4. X-ray data are provided for 3, 5, and 6. Complex 3 is polymeric in the solid state without coordinated solvent molecules, whereas both crystalline 5 and 6 are monomeric.
