Phosphonium iodide is a chemical compound with the formula PH 4I. It is an example of a salt containing an unsubstituted phosphonium cation (PH+ 4). Phosphonium...
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take the color of the anions. The parent phosphonium is PH+ 4 as found in the iodide salt, phosphonium iodide. Salts of the parent PH+ 4 are rarely encountered...
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Diphosphorus tetraiodide (redirect from Phosphorus(II) iodide)
phosphorus trichloride and potassium iodide in anhydrous conditions. Another synthesis route involves combining phosphonium iodide with iodine in a solution of...
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Kohlenwasserstoffe durch Jodphosphonium" [On the reduction of aromatic compound by phosphonium iodide [H4IP]]. Annalen der Chemie und Pharmacie. 55: 266–281. Bei der Reduction...
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Bergmann which demonstrated that with a mixture of hydrogen iodide and phosphonium iodide, p-toluenesulfonyl amino acids could be detosylated reductively...
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Ammonium iodide is the inorganic compound with the formula NH4I. A white solid. It is an ionic compound, although impure samples appear yellow. This salt...
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Wittig reaction (redirect from Phosphonium ylide)
olefination is a chemical reaction of an aldehyde or ketone with a triphenyl phosphonium ylide called a Wittig reagent. Wittig reactions are most commonly used...
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P2H4, may be prepared using the action of potassium hydroxide on phosphonium iodide: [PH4]I + KOH → PH3 + KI + H2O Phosphine is a worldwide constituent...
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Kohlenwasserstoffe durch Jodphosphonium" [On the reduction of aromatic compound by phosphonium iodide [H4IP]]. Annalen der Chemie und Pharmacie. 55: 266–281. Bei der Reduction...
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Wittig reagents (section Formation of phosphonium salt)
to be sold commercially. Wittig reagents are usually prepared from a phosphonium salt, which is in turn prepared by the quaternization of triphenylphosphine...
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the acid and base. Phosphonium cations (R4P+) are less common but offer some advantageous properties. Some examples of phosphonium cations are...
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organophosphorus compounds. Compounds with the formula [PR4+]X− comprise the phosphonium salts. These species are tetrahedral phosphorus(V) compounds. From the...
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N-carbobenzyloxy-α-N-carboxy-L-lysine anhydride, followed by deprotection with phosphonium iodide. Peptide synthesis from NCAs does not require protection of the amino...
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Sulfonyl halide (section Sulfonyl iodides)
sulfonyl halides decreases in the order fluorides > chlorides > bromides > iodides, all four types being well known. The sulfonyl chlorides and fluorides...
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Phosphonate Phosphite Phosphonous Phosphinate Phosphine oxide Phosphine Phosphonium Phosphaalkene Phosphaalkyne Phosphaallene Sulfur Thiol Sulfide Sulfonium...
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alkyl bromides, whereas using carbon tetraiodide, methyl iodide or iodine gives alkyl iodides. The reaction is credited to and named after Rolf Appel,...
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that reacts by the SN2 pathway: CH3OH + H+ → [CH3OH2]+ Similarly, methyl iodide and methyl triflate are viewed as the equivalent of the methyl cation because...
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vinyl iodide/phosphonium salt. phosphonium salt could be readily obtained as the trisubstituted vinyl iodide is less reactive than alkyl iodide. A Wittig...
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Phosphonate Phosphite Phosphonous Phosphinate Phosphine oxide Phosphine Phosphonium Phosphaalkene Phosphaalkyne Phosphaallene Sulfur Thiol Sulfide Sulfonium...
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Phosphonate Phosphite Phosphonous Phosphinate Phosphine oxide Phosphine Phosphonium Phosphaalkene Phosphaalkyne Phosphaallene Sulfur Thiol Sulfide Sulfonium...
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Phosphonate Phosphite Phosphonous Phosphinate Phosphine oxide Phosphine Phosphonium Phosphaalkene Phosphaalkyne Phosphaallene Sulfur Thiol Sulfide Sulfonium...
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Phosphonate Phosphite Phosphonous Phosphinate Phosphine oxide Phosphine Phosphonium Phosphaalkene Phosphaalkyne Phosphaallene Sulfur Thiol Sulfide Sulfonium...
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(1949-05-10). "Über die Metallierbarkeit von quaternären Ammonium- und Phosphonium-Salzen". Justus Liebigs Annalen der Chemie. 562 (3): 177–186. doi:10...
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ammonium (IUPAC name azanium), NH+4 (protonated ammonia (IUPAC name azane)) phosphonium, PH+4 (protonated phosphine) arsonium, AsH+4 (protonated arsine) stibonium...
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volatile haloalkanes in theory may have activity as greenhouse gases. Methyl iodide, a naturally occurring substance, however, does not have ozone-depleting...
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Phosphonate Phosphite Phosphonous Phosphinate Phosphine oxide Phosphine Phosphonium Phosphaalkene Phosphaalkyne Phosphaallene Sulfur Thiol Sulfide Sulfonium...
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limits reaction rate. In Simmons-Smith cyclopropanation, the iodomethylzinc iodide typically complexes to any allylic hydroxy groups such that addition is...
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Phosphonate Phosphite Phosphonous Phosphinate Phosphine oxide Phosphine Phosphonium Phosphaalkene Phosphaalkyne Phosphaallene Sulfur Thiol Sulfide Sulfonium...
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nucleophilic toward hard electrophiles. With methyl iodide it forms trimethylsulfoxonium iodide, [(CH3)3SO]I: (CH3)2SO + CH3I → [(CH3)3SO]I This salt...
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readily alkylate to stable sulfonium salts, such as trimethylsulfonium iodide: S(CH3)2 + CH3I → [S(CH3)3]+I− Sulfides also oxidize easily to sulfoxides...
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