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2-Hydroxy-4-methyl acetophenone

Preparation by iodination of 5-chloro-2-hydroxy-4-methyl-acetophenone with iodine (1 mol) and iodic acid (1 mol) in ethanol at 35 0° for 1.5 h (75-85%) [1802]. [Pg.733]

Preparation by reaction of bromine on 2-hydroxy-4-methyl-acetophenone in chloroform at <-10° (74%)... [Pg.738]

Obtained by hydrolysis of 5-acetoxy-2-hydroxy-4-methyl-acetophenone with concentrated hydrochloric acid in methanol at r.t. for 1 h (27%) [4165]. [Pg.1140]

Dlchloro 2-hydroxy-6-methyl acetophenone (2) and 6,8-0lchloro>2,5-dlRiethylchromone (3) A mixture of 2,4-dichioro 5-methylphenyl acetate 1 (39 6 g,... [Pg.133]

Solvent Viscosity, cP, 30°C Quantum yields of 2-hydroxy-5-methyl acetophenone (56) Formation of 4-methylphenol (19)... [Pg.121]

SO as to relieve steric interaction between the C-methyl group and C-8-H. Comparison of the frequency of the carbonyl band in the IR spectrum (broad, 1665—1670 cmwith that of 2-hydroxy-6-methyl-acetophenone (v ax 1630 cm in CHCI3) supports this conclusion. [Pg.331]

Preparation by reaction of bromine with 4-hydroxy-3-methyl-acetophenone in aqueous acetic acid, first at 5°, then at r.t. (89%) [1825]. [Pg.738]

Preparation by catalytic hydrogenolysis of 6-(benzyloxy)-2-hydroxy-4-meth-oxy-3-methyl-acetophenone in the presence of Pd/C in acetic acid (75%) [3043],... [Pg.832]

Preparation from 3-chloromethyl-2-hydroxy-5-methyl-acetophenone (b.p. 110-116°) [2494] by reaction with methanol in the presence of concentrated hydrochloric acid and iron powder at reflux for 3.5. 5 h (82%) [3262], (49%) [2494]. [Pg.877]

Preparation by aminomethylation of 4-hydroxy-3-methyl-acetophenone with dimethylamine and formahn in water at 35-40° for 4 h (64%) [3217]. [Pg.936]

Also obtained by reaction of dimethyl sulfate with 2-hydroxy-4,6-dimethoxy-3-methyl-acetophenone,... [Pg.1145]

Preparation by selective bromination of 4-hydroxy-3-methyl-acetophenone with cupric bromide in refluxing chloroform-ethyl acetate mixture (quantitative yield) [4391],... [Pg.1214]

Obtained by hydrolyzing 2-hydroxy-5-(chloro-methyl)acetophenone [5880,5881]. [Pg.1601]

Acetyl-3 -hydroxy-5"-methoxy-4 -methylphenoxy)-2, 4, 6 -trimethoxy-5 -methyl-acetophenone (Di-O-methyllepromin)... [Pg.1726]

Show the polyketide, appropriately folded, from which 2-hydroxy-6-methyl-acetophenone is formed. [Pg.67]

CO, CH4, CO2, ethylene, acetylene, ethane, H2O, propylene, ethanal, 192 acetone, propanal, ethanol, benzene, toluene, ethyl benzene, styrene, p-vinyl toluene, benzaldehyde, p-ethyl toluene, acetophenone, methyl benzoate, vinyl benzoate, ethyl benzoate, p-methyl acetophenone, benzoic acid, p-methyl vinyl benzoate, p-vinyl acetophenone, propyl benzoate, p-ethyl vinyl benzoate, p-vinyl vinyl benzoate, biphenyl, 1-hydroxy ethyl benzoate, diacetyl benzene, p-acetyl vinyl benzoate, divinyl terephthalate, ethyl vinyl terephthalate,... [Pg.500]

Ethers of benzenepentol have been obtained by Dakin oxidation of the appropriately substituted acetophenone. Thus, the oxidation of 2-hydroxy-3,4,6-ttimethoxyacetophenone and 2-hydroxy-3,4,5-ttimethoxyacetophenone with hydrogen peroxide ia the presence of alkali gives l,2-dihydroxy-3,4,6-ttimethoxybenzene and l,2-dihydroxy-3,4,5-ttimethoxybenzene, respectively further methylation of these ethers yields the pentamethyl ether of benzenepentol (mp 58—59 degC) (253). The one-step aromatization of myoinositol to produce esters of pentahydroxybenzene is achieved by treatment with carboxylic acid anhydrides ia DMSO and ia the presence of pyridine (254) (see Vitamins). 6-Alkyl- or... [Pg.389]

CifiHpNO, 33522-95-1) see Nalbuphine Naloxone 2 -hydroxy-4 -(2,5-dihydro-5-oxo-3-furyl)acetophenone (C12H10O4 3447-63-0) see Benfurodil hemisuccinate 0-(4-hydroxy-3,5-diiodophenyl)-3,S-diiodo-a-methyl-tyrosine... [Pg.2394]

C2jH3 07 67212-74-2) see Alclometasone dipropionate 2 -hydroxy-4 -(3-methyl-2-butenyloxy)acetophenone (C,3H] 03 24672-83-1) see Sofalcone 2-hydroxy-2-methylbutyric acid ethyl ester (C7H14O3 77-70-3) see Paramethadione 2-hydroxy-2-methylbutyronitrile (Ci H NO 4111-08-4) see Paramethadione 5(R)-(hydroxymethyl)-2-cyclopenten-l(R)-ol (C(jH,(,02 143395-28-2) see Abacavir 2-[l-(hydroxymethyl)cyclopropyl]acctonitrile (QH9NO 152922-71-9) see Montelukast sodium ( )-cis-2-hydroxymethyl-Af,Af-diethyl-l-phenylcyclo-propanecarboxamide... [Pg.2397]

Fig. 6.46. El mass spectra of 2-hydroxy-acetophenone (a) and 2-methyl-benzoic acid (b). Spectra used by permission of NIST. NIST 2002. Fig. 6.46. El mass spectra of 2-hydroxy-acetophenone (a) and 2-methyl-benzoic acid (b). Spectra used by permission of NIST. NIST 2002.
Diastereomeric 2,2-disubstituted-tetrahydro-l,3-oxaxin-4-ones were synthesized from cw-2-hydroxy-l-cyclopentane- and -cyclohexanecarboxa-mides 132 by condensing them with nonsymmetric ketones, such as 2-butanone, 3-methyl-2-butanone, 3,3-dimethyl-2-butanone, or acetophenone (87T4565). The diastereomer product ratios are given in Table I. [Pg.370]

See other pages where 2-Hydroxy-4-methyl acetophenone is mentioned: [Pg.165]    [Pg.327]    [Pg.1038]    [Pg.1238]    [Pg.567]    [Pg.425]    [Pg.425]    [Pg.165]    [Pg.1550]    [Pg.397]    [Pg.425]    [Pg.820]    [Pg.289]    [Pg.298]    [Pg.79]    [Pg.117]    [Pg.137]    [Pg.88]    [Pg.38]    [Pg.511]    [Pg.306]    [Pg.283]    [Pg.97]    [Pg.47]   
See also in sourсe #XX -- [ Pg.165 ]



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2- Hydroxy-4-methyl acetophenon

2- Hydroxy-4-methyl acetophenon

2- hydroxy-acetophenones

4-Hydroxy acetophenone reaction with methyl

Acetophenone 2- hydroxy

Acetophenone 6-chloro-2-hydroxy-4-methyl

Methyl acetophenone

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