Tert-butyl-2- phenyl

A number of less-hazardous reagents that can be substituted for tert-hutyl azidoformate in tert-butoxycarbonylation reactions are available including 2-(te/t-butoxycarbonyloxyimino)-2-phenylacetonitrile (Aldrich Chemical Company), 0-teri-hutyl N-phenyl thiocarbonate (Eastman Organic Chemicals), di-butyl dicarbonate and tert-butyl phenyl carbonate. ... [Pg.122]

SECONDARY AND TERTIARY ALKYL KETONES FROM CARBOXYLIC ACID CHLORIDES AND LITHIUM PHENYLTHIO(ALKYL)CUPRATE REAGENTS tert-BUTYL PHENYL KETONE... [Pg.122]

Auch sterische Aspekte konnen eine Rolle spielen. So erhalt man z. B. in DMF/Tetra-butylammoniumperchlorat bzw. in Methanol/Tetramethylammoniumchlorid in geteilter Zelle an Quecksilber aus Methyl-(2-methyl-phenyl)-sulfon 2-Methyl-benzolsulfinsaure (bis 93% d. Th.) bzw. aus Methyl-(2-tert.-butyl-phenyl)-sulfon Methansulfinsaure (bis 91% d. Th.). (2-tert.-Butyl-phenyl)-benzyl-sulfon wiederum wird zur 2-tert.-Butyl-ben-zolsulfinsaure (86% d. Th.) gespalten5. [Pg.632]

Aus Stilben wird mit tert.-Butylchlorid bei -2,3 V ein 3 2-Gemisch aus 3,3-Dimethyl-1,2-diphenyl-butan und 2-Phenyl-1-(4-tert.-butyl-phenyl)-dthan5 erhalten. [Pg.649]

Phenyl-l-(4-tert.-butyl-phenyl)- 649 2-Phenylhydrazono-1 -oxo-1,2-diphenyl- 613... [Pg.886]

Der. 463ff, 547, 632 Athyl-phenyl- 633, 667 (2-tert.-Butyl-phenyl)-benzyl- 632 Dibenzyl- 464 Dibutyl- 464... [Pg.922]

Hydroxy-2-phenyl-athyl)-benzyI- 633 (2-Hydroxy-2-phenyl-athyl)-phenyI- 667 [1-Hydroxy-l -phenyl-propyl-(2)J-phenyl- 633 Methyl-(2-tert.-butyl-phenyl)- 632 Methyl-(2-methyl-phenyl)- 632 Methyl-naphthyl- 663 Naphthyl-benzyl- 633 fi-Oxo- 634... [Pg.922]

Brommcthyl-naphthyl-(2)- 535 (l-Brom-propyI)-(4-methoxy-phenyl)- 535 (1 -Brom -propyI)-(4-methyI-phenyl)- 535 (1 -Brom-propyI)-phenyI-. 535 tert.-Butyl-phenyl-. 506 Dibenzyl- 465, 488, 506, 524, 534 Dibutyl- 465, 488, 500, 506, 524f., 534, 547 Dimethyl-525, 547.572, 674 Diorgano- 463ff., 488f, 498, 500, 521, 524f. 547, 567... [Pg.922]

Cp pentamethylcyclopentadienyl Tmp 2,2,6,6-tetramethylpiperidine Dipp 2,6-di(iso-propyl)phenyl Trip 2,4,6-tri(iso-propyl)phenyl Mes 2,4,6-trimethylphenyl Mes 2,4,6-tri(tert-butyl)phenyl Ada adamantyl dmap 4-(dimethylamino)pyridine Tms trimethylsilyl (SiMe3)... [Pg.118]

PM 92560 38613-77-3 Irgafos Tetrakis(2,4-di-tert-butyl-phenyl)- Mixed Strongly (-ve) ... [Pg.579]

Ar = p-tolyl, p-anisyl, p-(tert. butyl)phenyl R = CH3, C(CH3)3, a-naphthyl R = alkyl, aryl, NH-Ph, O-alkyl R" = CN, NO2, acyl, aroyl... [Pg.57]

Irradiation causes ring closure by valence isomerization of 1,3-diphosphacyclobutane-2,4-diyl 42 (R = 2,4,6-tri(tert-butyl)phenyl) to 2,4-diphosphabicyclo[1.1.0]butane 43 which on thermolysis yielded the gauche-1,4-diphosphabutadiene 44 <99AG(E)3028>. The same group of workers have isolated the carbene 45 (R as above) as the lithium salt of a trimethylalane complex 46 <99AG(E)3031>. [Pg.75]

Ether, tert-butyl phenyl, 41, 91 Etherification of cholestanol with diazomethane, 41, 9... [Pg.59]

Let us now direct our attention to the P=C bond in phosphaalkene ion-radicals. The literature contains data on two such anion-radicals in which a furan and a thiophene ring are bound to the carbon atom, and the 2,4,6-tri(tert-butyl)phenyl group is bound to the phosphorus atom. According to the ESR spectra of anion-radicals, an unpaired electron is delocalized on a n orbital built from the five-membered ring (furanyl or thienyl) and the P=C bond. The participation of the phosphaalkene moiety in this MO was estimated at about 60% and some moderate (but sufficient) transmission of the spin density occurs through the P=C bridge (Jouaiti et al. 1997). Scheme 1.6 depicts the structures under discussion. [Pg.13]

An interesting picture was revealed by Gouverd et al. (2006) as a result of comparison between the neutral chromium tricarbonyl complex of C,P-diaryl phosphaalkene [(CO)3Cr<—PhCH=PMes ] and its anion-radical [(CO)3Cr <— PhCH=PMes ] (Mes is 2,4,6-tris(tert-butyl)phenyl). According to the ESR and DFT data for the anion-radical, about 40% of the negative charge is localized on Cr(CO)3 moiety. This is understandable if one takes into account the known electron-acceptor... [Pg.37]

This method has been employed for the synthesis of aluminum hydrazides in only few, but quite interesting cases. The reaction of azobenzene with an arylaluminum dihydride [aryl = tri(tert-butyl)phenyl] was reported to afford a... [Pg.57]

Ethanol, 2-nitro-, 41, 67 conversion to nitroethylene, 41, 71 Ether, tert-butyl phenyl, 41, 91 Etherification of cholestanol, 41, 9 with diazomethane, 41, 9 3-Ethoxy-2-cyclohexenone, 40, 41 reduction to 2-cyclohexenone, 40, 14... [Pg.57]

An improved antioxidant composition contains l,l,3-tris(2-meth-yl-4-hydroxy-5-tert-butyl phenyl)butane, (Topanol CA). Here also in addition dilauryl thiodipropionate is used as a co-stabilizer (12). [Pg.320]

Fig. 5.3. Extinction angle % vs. shear rate q for solutions of a fraction of poly(para-tert-butyl-phenyl methacrylate) (M = 7.4 x 10e) in carbon tetrachloride according to Tsvetkov and Shtennikova (140). Concentrations are indicated near the...

$Fig. 5.3. Extinction angle % vs. shear rate q for solutions of a fraction of poly(para-tert-butyl-phenyl methacrylate) (M = 7.4 x 10e) in carbon tetrachloride according to Tsvetkov and Shtennikova (140). Concentrations are indicated near the...$

Phosphane Chloro-(2.4.6-tri-tert-butyl-phenyl)-trifluoromcthyl-EI0b,. 660 (Li PCl-CFj)... [Pg.726]

AT7C CONI CiiHi40 tert-butyl phenyl ketone 1XVR CBHgC0C(CH3)3 EtOH IL BARB 0.03 Bu4N+ 0.2 BARB 0.1C Bu4N+ 0.2 A H 20 DME/SCE 12A0 C=1.00... [Pg.476]

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