84988-36-3

Upstream product

• 57680-64-5 8-Phenyl-tetrahydro-8λ⁵-[1,3,2]oxazaphospholo[2,3-b][1,3,2]oxazaphosphole 
• 96055-47-9 2-phenyl perhydro-1,3,6,2-dioxazaphosphocine 
• 92984-17-3 C₅₆H₅₈B₂FeN₄O₆P₂ 

Downstream Products

• 92984-17-3 C₅₆H₅₈B₂FeN₄O₆P₂ 

Relevant academic research and scientific papers

Facile and reversible conversion of an ammonium tetraphenylborate salt, Fe(NO)2[PhP(OCH2CH2)2NH 2+]2[BPh4-]2, into an amine-triphenylborane adduct, Fe(NO)2[PhP(OCH2CH2) 2N(H)·BPh3]2

The iron dinitrosyl bis(phosphane ammonium tetraphenylborate) Fe(NO)2[PhP(OCH2CH2)2NH 2+]2[BPh4-]2 (2) is converted, at room temperature, into the corresponding bis(phosphane amine-triphenylborane) adduct Fe(NO)2[PhP-(OCH2CH2) 2N(H)·BPh3]2 (3), in which cleavage of one of the phenyl rings of the tetraphenylborate anion has occurred. Compound 2 is obtained (i) by direct protonation of Fe(NO)2[PhP(OCH2CH2)2NH]2 (1) and subsequent reaction with NaBPh4, (ii) indirectly from the reaction of NaBPh4 with the trimetallic complex Fe(NO)2[PhP(OCH2CH2)2N(H)Fe(NO) 2I]2 (4), or (iii) from the reaction of NaBPh4 with the nonisolated adduct formed by mixing [Fe(NO)2I]2 (6) with the bicyclic aminophosphorane PhP(OCH2CH2)2N (7). Complex 3 was also obtained directly by complexation of adduct 1 by BPh3. The reaction of 3 with HCl and then with NaBPh4 easily regenerates complex 2. Variable-temperature 31P NMR spectroscopy of 3 in DMF reveals a stepwise and reversible dissociation of the two BPh3 groups.

Assembling capacity of P/N ligands derived from bicyclic aminophosphoranes: Obtaining di- and trimetallic iron nitrosyls

Bicyclic aminophosphorane 2, PhPH(OCH2CH2)2N, displaces one or two carbonyl groups of Fe(CO)2(NO)2 to yield P-only-bonded adducts 4 and 5 of the monocyclic open form 1, PhP(OCH2CH2)2NH. These adducts further react through their uncoordinated NH sites with [Fe(NO)2I]2 to yield di- and trimetallic iron nitrosyl compounds 10 and 11 in high yields.