- Synthesis of organophosphorus derivatives of 2,6-di-tert-butyl-4- methylphenol
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Convenient procedures for the synthesis of 2,6-di-tert-butyl-4-methylphenol (ionol) mono-, di-, and triphosphorus derivatives, starting from the readily accessible 3,5-di-tert-butyl-4-hydroxybenzaldehyde, are proposed, and some properties of the obtained
- Prishchenko, Andrey A.,Livantsov, Mikhail V.,Novikova, Olga P.,Livantsova, Ludmila I.,Milaeva, Elena R.
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- Synthesis of phosphorus derivatives of 2,6-di-tert-butyl-4-methylphenol
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Convenient procedures for the synthesis of 2,6-di-tert-butyl-4-methylphenol (ionol) mono-, di-and triphosphorus derivatives, starting from the readily accessible 3,5-di-tert-butyl-4-hydroxybenzaldehyde, are proposed, and some properties of the obtained co
- Prishchenko,Livantsov,Novikova,Livantsova,Shpakovskii,Milaeva
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- REACTION OF PHOSPHORYLATED QUINONE METHIDES WITH TRIVALENT PHOSPHORYL COMPOUNDS
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By reaction of bisphosphoryl quinone methides 2 with diethyl phosphite or diphenylphosphine oxide, depending on sterical requirements, the trisphosphorylderivatives 4a and 4b or 5 and 6 respectively, are formed. The latter reaction represents a new phosph
- Gross, H.,Keitel, I.,Costisella, B.
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- α-SUBSTITUIERTE PHOSPHONATE 62. TRIETHOXYPHOSPHONIUM-YLIDE BZW.-BETAINE AUS TRIETHYLPHOSPHIT UND 7-PHOSPHORYL-CHINONMETHIDEN, SYNTHESE UND REAKTIVITAET
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By addition of triethylphosphit (TEP) to the 7-diethylphosphono- or 7-diphenylphosphinyl-3,5-di-tert.-butyl-quinone methides 4a,b are formed by proton transfer, the surprisingly stable triethoxyphosphonium ylides 14a,b and not the expected phosphonium-bet
- Gross, Hans,Keitel, Iris,Costisella, Burkhard
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p. 331 - 338
(2007/10/02)
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- α-SUBSTITUIERTE PHOSPHONATE 55. EIN NEUES TRIPHOSPHONAT AUS BISPHOSPHONO-CHINONMETHID UND DIALKYLPHOSPHIT
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By oxidation of 3,5-di-tert-butyl-4-hydroxyphenylmethanephosphonate (4) or the analogous arylsubstituted bisphosphonate (5) with PbO2 the hitherto unknown 7-mono- or 7.7-bisphosphonylated quinonemethides (13) or (11), resp., are formed in good yields.The quinonemethides simply added dialkylphosphite to form the bisphosphonate (5) or the trisphosphonate (13), the latter having a remarkable stability.The structures of the quinonemethides (13) and (11) as well as of the tris-phosphonate (12) could be proved unambiguously by IR-, 1H-, 13C- and 31P-NMR spectra.
- Gross, Hans,Ozegowski, Sigrid,Costisella, Burkhard
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