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Imidazole, phenyl

Imidazole, 1-phenyl-13C NMR, 5, 354 (73ACS4101) dipole moment, 5, 351 (71CHE801) pK 5, 384 (B-76MI40701, 70AHC(12)103, 80AHC(27)241), 448 <70CHE194> rate constants, 5, 448 (70CHE194)... [Pg.29]

Ethyl-4-methyl imidazole 1-Phenyl-3,3-dimethyl urea 2,4,6-Tris (dimethylaminomethyl) phenol accelerator, epoxy-amine reactions Thioglycerin... [Pg.4784]

In summary, reactions of nitronates with acid anhydrides or acyl chlorides give the O-acylated products, and reactions with acyl imidazoles, phenyl esters, acyl nitriles, and enol-lactones gives the C-acylated products, (see Eq. 5.13).25 The C/O selectivity of nitronate acylation by RCOX is qualitatively correlated with strength (pKJ of the acid HX conjugated to the leaving group X .25... [Pg.130]

HPA = (4-pyridylthio)aceticacid 2-fur = 2-furoate a-fur = a-furoate = ([Pg.116]

The jR-isomer, however, would suffer from a severe imidazole-phenyl ring repulsion. [Pg.282]

The hydroxyl number can be deterrnined in a number of ways such as acetylation, phthalation, reaction with phenyl isocyanate, and ir and nmr methods. An imidazole-catalyzed phthalation has been used to measure the hydroxyl number for a number of commercial polyether polyols and compared (favorably) to ASTM D2849 (uncatalyzed phthalation) (99). The uncatalyzed method requires two hours at 98°C compared to 15 minutes at the same temperature. [Pg.351]

Fig. 1. Inhibition of porcine pancreatic a-amylase. Substrates, an inhibitor, and their binding orientations in the active site are shown schematically. The arrows denote the catalytic site in each case, (a) The small substrate, G2PNP [17400-77-0] (3) (b) the large substrate, G OH [13532-61 -1] (4) and (c) the inhibitor, 4-phenyl imidazole (5) and the substrate G2PNP (3) in the binding orientation for noncompetitive inhibition. The binding orientation of G2PNP... Fig. 1. Inhibition of porcine pancreatic a-amylase. Substrates, an inhibitor, and their binding orientations in the active site are shown schematically. The arrows denote the catalytic site in each case, (a) The small substrate, G2PNP [17400-77-0] (3) (b) the large substrate, G OH [13532-61 -1] (4) and (c) the inhibitor, 4-phenyl imidazole (5) and the substrate G2PNP (3) in the binding orientation for noncompetitive inhibition. The binding orientation of G2PNP...
Despite the weak basicity of isoxazoles, complexes of the parent methyl and phenyl derivatives with numerous metal ions such as copper, zinc, cobalt, etc. have been described (79AHC(25) 147). Many transition metal cations form complexes with Imidazoles the coordination number is four to six (70AHC(12)103). The chemistry of pyrazole complexes has been especially well studied and coordination compounds are known with thlazoles and 1,2,4-triazoles. Tetrazole anions also form good ligands for heavy metals (77AHC(21)323). [Pg.51]

Substituted imidazoles can be acylated at the 2-position by acid chlorides in the presence of triethylamine. This reaction proceeds by proton loss on the (V-acylated intermediate (241). An analogous reaction with phenyl isocyanate gives (242), probably via a similar mechanism. Benzimidazoles react similarly, but pyrazoles do not (80AHC(27)24l) cf. Section 4.02.1.4.6). [Pg.71]

Electrophilic substitution occurs readily in Af-phenyl groups, e.g. 1-phenyI-pyrazoIes, -imidazoles and -pyrazolinones are all nitrated and halogenated at the para position. The aryl group is attacked preferentially when the reactions are carried out in strongly acidic media, where the azole ring is protonated. [Pg.107]

Imidazole-4,5-dicarboxylic acid, 2-phenyl-pK, 5, 384 [Pg.29]

Azirine, trans-2-methyl-3-phenyl-racemization, 7, 33, 34 1-Azirine, 2-phenyl-reactions, 7, 69 with carbon disulfide, S, 153 1-Azirine, 3-vinyl-rearrangements, 7, 67 Azirines, 7, 47-93 cycloaddition reactions, 7, 26 fused ring derivatives, 7, 47-93 imidazole synthesis from, 5, 487-488 photochemical addition reactions to carbonyl compounds, 7, 56 photolysis, 5, 780, 7, 28 protonated... [Pg.528]

Benzenediazonium fluoroborate, 2-carboxy-xanthone synthesis from, 3, 838 Benzenediazonium ions phenyl azide formation from, 5, 839 Benzenediazonium salts, o-(imidazol-l-yl)-intramolecular diazo coupling, 5, 404 Benzene-1,2-disulfonimides N-substituted reactions, 6, 930 Benzene episulfide formation, 7, 577 Benzeneimine... [Pg.536]

Imidazole, 4-acetyl-5-methyl-2-phenyl-synthesis, 5, 475 Imidazole, 1-acyl-reactions, 5, 452 rearrangement, 5, 379 Imidazole, 2-acyl-synthesis, 5, 392, 402, 408 Imidazole, 4-acyl-synthesis, 5, 468 Imidazole, C-acyl-UV spectra, 5, 356 Imidazole, N-acyl-hydrolysis rate constant, 5, 350 reactions, 5, 451-453 synthesis, 5, 54, 390-393 Imidazole, alkenyl-oxidation, 5, 437 polymerization, 5, 437 Imidazole, 1-alkoxycarbonyl-decarboxylation, 5, 453 Imidazole, 2-alkoxy-l-methyl-reactions, 5, 102 thermal rearrangement, 5, 443 Imidazole, 4-alkoxymethyl-synthesis, 5, 480 Imidazole, alkyl-oxidation, 5, 430 synthesis, 5, 484 UV spectra, 5, 355 Imidazole, 1-alkyl-alkylation, 5, 73 bromination, 5, 398, 399 HNMR, 5, 353 synthesis, 5, 383 thermal rearrangement, 5, 363 Imidazole, 2-alkyl-reactions, 5, 88 synthesis, 5, 469... [Pg.648]

Imidazole, 2-aryl-4-phenyl-5-trifluoromethyl-synthesis, 5, 483 Imidazole, azido-reactions, 5, 442 Imidazole, 2-azido-, 5, 415 cyclization, 6, 980 reactions, 5, 96 with sodium, 5, 442 tautomerism, 5, 371 Imidazole, benzoyl-IR spectra, 5, 30 Imidazole, 2-benzoyl-4-phenyl-... [Pg.649]

Imidazole, 1 -cyano-4-methyl-2-methylthio-synthesis, 5, 494 Imidazole, 4-cyano-2-phenyl-synthesis, 5, 494... [Pg.650]

Imidazole, 1,2-diamino-4-phenyl-oxidation, S, 440, 454 Imidazole, 4,5-diaryl-synthesis, S, 481 Imidazole, diazoreactions, S, 96... [Pg.651]

Imidazole, l-(2,4-dinitrophenyl)-4-phenyl-irradiation, 5, 380 Imidazole, diphenyl-synthesis, S, 461 Imidazole, 2,4-diphenyl-colour coupler... [Pg.651]

Imidazole, 2-ethyl-1 -(o-nitrophenyl)-cyclization, S, 431 Imidazole, 4-ethyl-2-phenyl-oxidation, S, 405 Imidazole, ethynyl-Michael addition, S, 437 Imidazole, 4-ethynyl-2-phenyl-synthesis, S, 494 Imidazole, 1-formyl-reactions, S, 452 Imidazole, 2-formyl-mass spectra, S, 360 Imidazole, 4-formyl-synthesis, S, 475-476 Imidazole, 2-formyl-1,5-dimethyl-mass spectra, S, 360 3-oxide... [Pg.651]

Imidazole, 4-formyl-5-hydroxy-l-phenyl-mesoionic, 5, 372 Imidazole, 2-formyl-1-methyl-mass spectra, S, 360 Imidazole, 2-formyl-l,4,5-trimethyl-... [Pg.651]

Imidazole, 1 -methyl-5-nitro-2-styryl-ozonolysis, 5, 437 Imidazole, l-methyl-2-phenyl- C NMR, 5, 354 Imidazole, l-methyl-4-phenyl- C NMR, 5, 355 Imidazole, 2-methyl-4-phenyl-acylation, 5, 402... [Pg.653]

Imidazole-4-carbaldehyde, 5-mercapto-1 -phenyl-reactions, 5, 444 Imidazolecarbaldehydes oxidation, 5, 437 Imidazole-2-carbaldehydes condensation reactions, 5, 436 deacylation, 5, 93 decarbonylation, 5, 436 oximes, 5, 436 reactions, 5, 93... [Pg.654]

See other pages where Imidazole, phenyl is mentioned: [Pg.29]    [Pg.653]    [Pg.653]    [Pg.29]    [Pg.653]    [Pg.29]    [Pg.653]    [Pg.653]    [Pg.130]    [Pg.653]    [Pg.653]    [Pg.653]    [Pg.214]    [Pg.214]    [Pg.341]    [Pg.319]    [Pg.50]    [Pg.91]    [Pg.104]    [Pg.29]    [Pg.29]    [Pg.29]    [Pg.29]    [Pg.29]    [Pg.29]    [Pg.650]    [Pg.650]    [Pg.652]    [Pg.652]    [Pg.653]    [Pg.653]    [Pg.653]    [Pg.654]    [Pg.654]   
See also in sourсe #XX -- [ Pg.24 ]



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Imidazol tetrahydro-4-phenyl

Imidazole 1- phenyl-2,4,5-trimethyl

Imidazole 2-ethyl-4-methyl-5-phenyl

Imidazole 4-ethyl-2-phenyl

Imidazole 4-ethynyl-2-phenyl

Imidazole 4-nitro-1-phenyl

Imidazole continued) 5- -4-phenyl

Imidazole phenyl-, nitration

Imidazole, 4,5-dihydro-2-phenyl

Imidazole, 5-hydroxy-2- -4-phenyl

Imidazole-2,4 -dione, 3-phenyl

Imidazoles 1.2- diamino-4-phenyl

Imidazoles, l-methyl-2-phenyl

Phenyl Phosphorodi(l-imidazolate)

Phenyl acetates, reaction with imidazole

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