2.3- Diphenyl-5-benzyl

Aus 2,2-Dibenzyl-4,5-diphenyl-2H-imidazol wird beim Kochen in Salzsiiure unter Abspaltung von Benzylchlorid 1-Benzyl-4,5-diphenyl-imidazol erhalten563. [Pg.101]

R = CH2-C6H5 Benzyl-diphenyl-phosphanoxid " 80% R = CH3 Diphenyl-methyl-phosphanoxid104 33%... [Pg.16]

H5CAP-0-CH(CH3)2 HsC6-CHC1 (a-Chlor-benzyl)-diphenyl- phosphanoxid - 198 ISO... [Pg.23]

Benzyloxycarbonyl-diphenyl-phosphanoxid 59 23 g (0,135 mol) Chlorameisensaure-benzylcster werden inner-halb30 Min. tropfenweise bei U0°zu 30,6 g(0,133 mol) Diphenylphosphinigsaure-ethylestergegeben. Man er-hitzt unter Riihren 30 Min., laBt abkiihlen, versetzt mit 200 ml Ether, filtriert das als Ncbenprodukt entstandene Benzyl-diphenyl-phosphanoxid (13,6 g) ab und dampft das Filtrat ein. Der Riickstand wird nacheinander aus Ethcr/Petrolether (1 1) und Tetrachlormethan umkristallisiert Ausbeute 13,7 g (31%) Schmp. 96-97°. [Pg.24]

Tetraphenyldiphosphan laBt sich mit Carbonsauren an der P-P-Bindung spalten301,302. Mit aromatischen Carbonsauren bilden sich iiber die aufgezeigten Zwischenstulen Diphe-nylphosphinsaure- (a-diphenylphosphinyl-benzylesler), die im Falle elektronenreicher Carbonsauren durch intermediares Diphenylphosphanoxid zu Benzyl-diphenyl-phosphanoxiden reduziert werden (s.S. 8, 42)301 ... [Pg.40]

Dimethylamino-benzyl)-diphenyl-phosphanoxid >01 Nach vorstehender Vorschrift erhalt man aus 0,74 g (2 mmol) Tetraphenyldiphosphan und 0,33 g (2 mmol) 4-Dimethylamino-benzoesaure nach abschlieBender Chro-matographie an Aluminiumoxid mit Ether/Methanol (99 1) 0,34g (51%) Schmp. 212-213°. [Pg.40]

Diphenyl-(a-hydroxy-henzyl)-phosphanoxid399 5,0 g (17 mmol) Benzyl-diphenyl-phosphanoxid in Ether wer-den mit einer aus 3,14 g (20 mmol) Brombenzol und 0,28 g (40 mmol) Lithium in 40m/ Diethylether hergestell-ten Losung von Phenyl-lithium metalliert und anschlieBend bei - 10° mit 7 mmol Sauerstoff begast, wobei sich die gelbe Losung entfarbt. Nach Hydrolyse mit 2N Salzsaure wird das Phosphanoxid aus Chloroform/Petrolether umkristallisiert Ausbeute 2,19g (42%) Schmp. 176-179°. [Pg.64]

H5C6-Li, Diethylether/ 1,2-Dimethoxy-ethan [h3C- -so2-N3 n2 -c-c6h5 L (a-Diazo-benzyl)-diphenyl-.. 30 161 407... [Pg.66]

Auf diesem Wege lassen sich auch (l-Diazo-alkyl)-phosphansulfide herstel-lens66 567 z.B. (a-Diazo-benzyl)-diphenyl-phosphansulfid (37%)566 ... [Pg.89]

Aectoxy-butyloxy- El, 321 [a-(a-Aectoxy-butyloxy)-benzyl]-diphenyl- E2,... [Pg.1008]

Butyloxy-propyl- XII/1, 257 Butyloxy-trimelhylsilyloxy- El, 339 tert.-Butyl-phenyl- El, 241, 244 tcrt.-Butyl-phcnyl-trifluoracetyl- E2, 8 (tti-Carboxy-alkyl)-diphenyl- E2, 52, 53 (a-Carboxy-bcnzyl)-diphenyl- E2, 34 (lO-Carboxy-decyl)-diphenyl- E2, 53 (2-Carboxy-ethyl)-diphenyl- Xll/1, 146 Carboxymethyl-diphcnyl- XII/1, 148 E2, 65, 66 (S-Carboxy-pentyl)-diphenyl- E2, 53 (3-Carboxy-phenyl)-diphenyl- XII/1, 143 El, 167 (4-Chlor-benzyl)-diphenyl- E2, 16, 18 (a-Chlor-benzyl)-diphenyl- E2, 11, 23 Chlorethinyl-diphenyl- E2, 23, 23 Chlor-ethoxy- El, 321 (2-Chlor-elhoxy)-ethyl- E2, 187 (2-Chlor-eihoxy)-hydroxy- XII/2, 11 Ammoniumsalz... [Pg.1010]

Alkinyl-dimethyl- E2, 81 Allyl-diphenyl- XII/1, 171 El, 170 Aminomethyl-diorgano- El, 262 Benzyl-dimethyl- E2, 85 Benzyl-diphenyl- XII/1, 171 Bis-[4-brom-benzyloxy]-... [Pg.1015]

Two papers report the uranyl species extracted by DOSO to be U02(NO3)2 2D0S0 054,55). The order of strength of extraction of uranyl nitrate is diheptyl > decyl benzyl > diphenyl the... [Pg.81]

X- R = Ph X = Cl R = H. CH, Ph X -1. Br R = Ph X = Cl. Br R = CO,Me X = Br Treatment of polystyryl diphenyl phosphine with alkylhalides H Vr/i> reaction Cis / irons stilbene from bcnzaldehyde.242 Olefins from aromatic and aliphatic aldehydes and Mono-olefins from tcrcphthaldehydc and tso-phthaldehyde (ylide generation by treatment of benzyl diphenyl polystyrylphosphonium bromide with ethylene oxide afforded mono ethylene acetals as by- products).244... [Pg.72]

IO.(/ )- + ) benzyl (diphenyl-methyl) methylphenyl-phosphonium bromide... [Pg.236]

The following liquids may be used (boiling points are given in parentheses) — chlorobenzene (132-3°) bromobenzene (155°) p cymene (176°) o-dichloro-benzene (180°) aniline (184°) methyl benzoate (200°) teti-alin (207°) ethyl benzoate (212°) 1 2 4-trichlorobenzene (213°) iaopropyl benzoate (218°) methyl salicylate (223°) n-propyl benzoate (231°) diethyleneglycol (244°) n-butyl benzoate (250°) diphenyl (255°) diphenyl ether (259°) dimethyl phth ate (282°) diethyl phthalate (296°) diphenylamine (302°) benzophenone (305)° benzyl benzoate (316°). [Pg.61]

SuIfona.tlon, Sulfonation is a common reaction with dialkyl sulfates, either by slow decomposition on heating with the release of SO or by attack at the sulfur end of the O—S bond (63). Reaction products are usually the dimethyl ether, methanol, sulfonic acid, and methyl sulfonates, corresponding to both routes. Reactive aromatics are commonly those with higher reactivity to electrophilic substitution at temperatures > 100° C. Tn phenylamine, diphenylmethylamine, anisole, and diphenyl ether exhibit ring sulfonation at 150—160°C, 140°C, 155—160°C, and 180—190°C, respectively, but diphenyl ketone and benzyl methyl ether do not react up to 190°C. Diphenyl amine methylates and then sulfonates. Catalysis of sulfonation of anthraquinone by dimethyl sulfate occurs with thaHium(III) oxide or mercury(II) oxide at 170°C. Alkyl interchange also gives sulfation. [Pg.200]

PVB resins are also compatible with a limited number of plasticizers and resins. Plasticizers (qv) improve processibility, lower T, and increase flexibihty and resiUency over a broad temperature range. Usehil plasticizers include dibutyl and butyl benzyl phthalates, tricresyl and 2-ethylhexyl diphenyl phosphates, butyl ricinoleate, dibutyl sebacate, dihexyl adipate, triethylene glycol di-2-ethylbutyrate, tetraethylene glycol diheptanoate, castor oil, and others (64-73). [Pg.452]

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