SYNTHETIC ROUTE TO WHITE PHOSPHORUS (P ₄ ) AND ARSENIC TRIPHOSPHIDE (AsP ₃ )

H2 Activation and Direct Access to Terminal Nitride and cyclo-P3 Complexes by an Acceptor-Free Rhenium(II) β-Diketiminate

“…All 1 H and 13 C spectra were referenced to the residual peak of the solvent used. 31 P NMR data are referenced to a P 4 (−520.9 ppm) internal standard . Select peak assignments were corroborated with 1 H– 13 C HSQC experiments as necessary.…”

“…31 P NMR data are referenced to a P 4 (−520.9 ppm) internal standard. 55 Select peak assignments were corroborated with 1 H− 13 C HSQC experiments as necessary. Unless noted otherwise, "room temperature" and "ambient temperature" both refer to ∼23 °C.…”

Hydrostannylation of Red Phosphorus: A Convenient Route to Monophosphines

“…Similar reactions allowed the conversion of P red directly into the corresponding phosphine (HOCH 2 ) 3 P (THP, 9, by excluding the HCl quench) and phosphine oxide (HOCH 2 ) 3 PO (THPO, 10, by quenching with air) as well as the phosphonium salts [Bn 4 P]Br and [Et 4 P]Br (7 a and 7 b respectively, prepared using BnBr and EtBr) and the triacylphosphines (tBuC(O)) 3 P and (PhC(O)) 3 P (8 a and 8 b, respectively, prepared using tBuC(O)Cl and PhC(O)Cl), in generally good to excellent isolated yields (Scheme 3b and Sections 3.2-3.7 in the Supporting Information). The industrial and academic applications of these isolated products include flame retardants (5 and 10), [1b,18] Wittig reagents (7), and chemical precursors (9), [1b,19] among others. Significantly, the formation of 7 and 8 could be performed in the absence of base which contrasts with previous results where a base was necessary for functionalisation of the intermediate PÀ H bonds present in (Bu 3 Sn) x PH 3À x (x = 1 or 2), thus highlighting an additional advantage of instead proceeding via (Bu 3 Sn) 3 P only.…”

“…As a result, its safe handling and productive use typically require specific expertise and equipment (e. g., gloveboxes). These hazards also make P 4 very difficult to acquire commercially, [7] and collectively these factors render P 4 an impractical, unattractive or simply impossible precursor for many synthetic laboratories.…”

Reappraising Schmidpeter's bis(iminophosphoranyl)phosphides: coordination to transition metals and bonding analysis

“…70 More recently, Arnold, Hsu and Tsai adapted this procedure to modern day Schlenk-line techniques. 71 We independently developed a safer variation of Baker's allotropic conversion, using a custom-made silica glass Schlenk ask for improved heat resistance (see the ESI † for details). Thus, heating lithium phosphinoamides 1 with an excess of P 4 (2 to 2.4 eq.)…”