Phosphorus: Organophosphorus Chemistry

Abstract

The chemistry associated with compounds bearing at least one carbon–phosphorus bond has been surveyed. This survey has been organized on the basis of the coordination about the phosphorus center, beginning with monocoordinated phosphorus and continuing through hexacoordinated phosphorus. Preparations, stereochemistry, and reactivity are principal topics considered.

A study on the deoxygenation of trialkyl‐, dialkyl‐phenyl‐ and alkyl‐diphenyl phosphine oxides by hydrosilanes

“…Hence, TMDS (4) seems to reveal a somewhat lower reactivity toward 1-alkyl-3-phospholene oxides (11a-d) than toward the 1-phenyl derivative (1). Using PMHS (5), it can be said that the reactivity toward the 1-alkyl-3-phospholene oxides (11a-d) is more or less the same, as that toward the 1-phenyl substrate (1) ( The point is that in the case of 1-alkyl-3-methyl-3phospholene 1-oxides (11a-d), PhSiH 3 (3) may also be replaced by the cheap and user-friendly TMDS (4) and PMHS (5). In both variations, MW assistance is advantageous.…”

“…These days, the deoxygenation of phosphine oxides is in the focus due to its high importance. [1][2][3][4][5][6] The resulting phosphines, on the one hand, may be useful intermediates, and on the other hand, they may serve as P-ligands in transition metal complexes. Transformations, such as the Wittig, Appel, and the Mitsunobu reactions, involve the stoichiometric conversion of triphenylphosphine to triphenylphosphine oxide causing an environmental burden and meaning cost.…”

“…During our earlier work, we studied the deoxygenation of 1-phenyl-3-methyl-3-phospholene 1-oxide (1) by different silanes (3)(4)(5)(6)(7)(8)(9)(10) in detail. [30,31] The most important results are summarized in Scheme 1 and Table 1.…”

“…[30] Later on, other silanes were also tried out. [31] It was found that 1-naphthylsilane (NaphSiH 3 6), benzylsilane (BnSiH 3 7), and bis(4-methylphenyl)silane [(4-MePh) 2 SiH 2 8] were more reactive than PMHS (5) and TMDS (4) ( Table 1, entries 4-6), but tetraphenyl-disilane ([Ph 2 SiH] 2 10) and bis(1-naphthyl) silane ([1-Naph] 2 SiH 2 9) were less reactive than PMHS (5) ( Table 1, entries 7 and 8). The reactivity of (Ph 2 SiH) 2 (10) and TMDS (4) seemed to be comparable.…”

Synthesis, Characterization, and Application of Platinum(II) Complexes Incorporating Racemic and Optically Active 4-Chloro-5-Methyl-1-Phenyl-1,2,3,6-Tetrahydrophosphinine Ligand

“…The exact mass measurements were performed using a Q-TOF Premier mass spectrometer in positive electrospray mode. The ee of the 4-chloro-1-phenyl-5-methyl-1,2,3,6-tetrahydrophosphinine 1oxide (1) was determined by chiral HPLC using Kromasil R The 4-chloro-1-phenyl-5-methyl-1,2,3,6tetrahydrophosphinine 1-oxide (1) was synthesized as described earlier [32]. The (-)-O,O -di-p-toluoyl-(2R,3R)-tartaric acid was purchased from Aldrich (Budapest, Hungary).…”