1.2- diphenyl-ethanone

CAS 574-09-4 EINECS/ELINCS 209-366-8 Synonyms 2-Ethoxy-1,2-diphenyl ethanone Ethoxy phenylacetophenone 2-Ethoxy-2-phenylacetophenone o-Ethoxy-a-phenylacetophenone Ethyl benzoin ether Classification Aromatic ketone Empirical C16H16O2... 

Ethoxy-1,2-diphenyl ethanone. See Benzoin ethyl ether... 

Despite mass-transfer limitations, Au/SBA-15 (MPTMS-300°C) remains an interesting catalyst for this liquid phase reactiom Its selectivity is indeed markedly different from that displayed by gold rranoparticles supported on passivated high surface area silica [6] deoxybenzoin (1,2-diphenyl-ethanone), not the epoxide, is the main reaction product, with a yield of 45% at full conversion (78 h). 

After the initial claim of the synthesis of an oxirene (by the oxidation of propyne Section 5.05.6.3.1) this system reappeared with the claim 31LA(490)20l) that 2-chloro-l,2-diphenyl-ethanone (110) reacted with sodium methoxide to give diphenyloxirene (111), but it was later shown (52JA2082) that the product was the prosaic methoxy ketone (112 Scheme 97) (the formation of 111 from 110 would be an a-elimination carbene-type reaction). Even with strong, nonnucleophilic bases, (110) failed to provide evidence of diphenyloxirene formation (64JA4866). 

With a-hydroxy ketones and their related tosyloxy derivatives. The imidazo [2,T ]thiazole 364 was prepared by acetic acid-catalyzed cyclocondensation of 2-hydroxy-l,2-diphenyl-ethanone with thiophenyl-substituted 2-aminothiazole 363 (Equation 163) <2002MI110>. Under MW irradiation and in the presence of montmorillonite K-10 clay, a mixture of a-tosyloxyketones 365 and 2-imidazolidinethione led to the substituted 5,6-dihydro-imidazo[2,l- ]thiazoles 366 (Equation 164) <1998J(P1)4093>. When using a-tosyloxyacetophenone, prepared by reaction of acetophenone with [hydroxyl(tosyloxy)iodo]benzene (HTIB), 5-aminopyrazole 367 could be converted to imidazo[l,2- ]pyrazole 368 in basic medium (Equation 165) <2005JHC209>. 

Finally, product formation is reversible. Thus, treatment of 2-hydroxy-l,2-diphenyl-ethanone (benzoin) with other aromatic aldehydes in the presence of cyanide results in the formation of mixed benzoins (Equation 9.50). ... 

Acetonitrile, diphenyl-, 55, 94, 102 Acetonitrile, diphenyl-2-( 1 ethoxyvinyl) [Acetonitrile, diphenyl 2 (1 ethoxy ethenyl) ], 55, 102 Acetonitrile, phenyl-, 55, 91,94 Acetophenone, 4-chloro- [Ethanone, l-(4-chlorophenyl)-[, 55, 40... 

Insertion of a carbene unit into the N—H bond of primary or secondary amines by copper salt catalyzed decomposition of diazo compounds has been known for a number of years14). The copper chelate promoted reaction of diazodiphenyl-methane 291) or 2-diazo-1,2-diphenyl-1-ethanone 292) with primary benzylamines or... 

A similar reaction sequence allows the preparation of symmetrical and unsymmetri-cal ketazines 318 from hydrazones and diazodiphenylmethane or 2-diazo-l,2-diphenyl- 1-ethanone 293). 

Unlike copper(I) Cuj and Cu6 units are very limited in copper(II) structures. The former is unknown but the latter occurs (Figure 19.5) in [Cu30(dpeo)3]2 (333),705 where dpeo = l,2-diphenyl-2-(methylimino)ethanone 1-oxime and results from the dimerization of the trinudear [Cu30(dpeo)3] units (see 321) with a relatively short Cu—O separation of 2.33 A and a short Cu—Cu separation of 3.18 A. 

Dimethyl-1-cyclohexyl-1-trimethylsiloxy-ethene (191) gives by means of methyllithium/ethylbromide in dimethoxyethane (DME) 1-cyclohexyl-2,2-dimethyl-1-butanone (297)133 Dimerizations occur when substances such as 1-trimethylsiloxy-styrene (192) or 1-trimethylsiloxy-l-cyclopentene (195) are treated with silver oxide/ DMSO to afford l,5-diphenyl-2,5-butadione (198) and 2,2 -dicyclopentanonyl (199)l34 respectively. Under the catalytic influence of Cu2+ ions, 192 plus ben-zenesulfonyl chloride yield phenyl-(l-phenyl-l-ethanone-2-yl)sulfone (200)l3 ... 

Beilstein Handbook Reference) Aceto-phenone, 2-hydroxy-2-phenyl- AI3-00851 Benzoin )-Benzoin Benzoin extract (resinoid) Benzoylphenyl-carbinol Bitter-almond-oil camphor BRN 0391839 CCRIS 75 CCRIS 6696 EINECS 204-331-3 EINECS 209-441-5 Ethanone, 2-hydroxy-1,2-diphenyl- FEMA No, 2132 Fenyl-a-hydroxybenzylketon HSDB 384 2-Hydroxy-2-phenylacetophenone 2-Hydroxy-1,2-di-phenylethanone 1)-2-Hydroxy-1,2-diphenylethan-1-one a-Hydroxy-a-... 

EINECS 245-039-6 Ethanone, 2-(2-methylpropoxy)-1,2-diphenyl- Wcure . Photosensitizer for UV curable systems, e.g., coatings, inks, graphic arts, bpo.5 = 133° d = 0,9850. Akzo,... 

Benzodioxaborole (cateckolborane), 131 Benzoic add Birch reduction, 103-104 —, 2-(acetylnitrosoamino)- benzyne from, 93 Benzoin. See Ethanone, 2-hydroxy-l,2-diphenyl-Benzophenone = diphenyhnethanone aldol addn. and condensation with, 56-57 3tf-2 Benzopyran-3-one, 1,4-dihydro-, 80 Benzoquinones. See Cyclohexadienediones Iff-Benzotriazole, 1-hydroxy- (HBT, HOBT) acylation catalyst, 145, 231 Benzvalene — t ricyclo[2.1.1.03,6]hex-2-ene. 330-331... 

Ethanedione, diphenyl- benzil CeHs-CO-CO-CeHs Ethanone, 1-(alkyI-1/-/-pyrroIyl)-Ethanone, 1-(1,2-dihydro-2-methyl-3-pyridinyl)-... 

Ethanone, 1,2-diphenyl-2-(acetyloxy)- benzoin acetate 2601a ... 

When 1,2-diphenyl-l-ethanone (4-19, Ar = C6H5) was used by Regitz (1964 b, 1965 b) a rather unstable intermediate and another end product were found in addition to the diazoketone 4.22 (Ar = CgHs). In our opinion there is not enough mechanistic information available for an interpretation, considering also the experience with Ny-labeled 4-toluenesulfonyl azide in the reaction with cyclopenta-dienyl anion. For these reactions Roberts and coworkers found, besides the expected diazocyclopentadiene with in the a-position, some Np-labeled product (Duthaler et al., 1978). 

CAS 24650-42-8 EINECS/ELINCS 246-386-6 Synonyms Benzil dimethyl acetal Benzil a,a-dimethyl acetal Benzyidimethyl ketal 2,2-Dimethoxy-1,2-diphenylethan-1-one a,a-Dimethoxy-a-phenylacetophenone 1,2-Diphenylethane-1,2-dione, dimethyl ketal Ethanone, 2,2-dimethoxy-1,2-diphenyl-Empirical C,6H,603 Formula C6HsCOC(OCH3)2C6H5... 

Manuf./Distrib. Aldrich http //www.sigma-aldrich.com Benzoin methyl ether CAS 3524-62-7 EINECS/ELINCS 222-538-7 Synonyms Acetophenone, 2-methoxy-2-phenyl- Ethanone, 2-methoxy-1,2-diphenyl- a-Methoxydeoxybenzoin 2-Methoxy-1,2-diphenylethanone 2-Methoxy-2-phenylacetophenone... 

Ethanol, 2-[(1,7,7-trimethylbicyclo [2.2.1] hept-2-yl) oxy], exo-. See (exo)-2-Camphanyl-P-hydroxyethyl ether Ethanol, undenatured. See Alcohol Ethanone, 1-(2,3-dihydro-1,1,2,3,3,6-hexamethyl-1H-inden-5-yl)-. See Acetyl hexamethyl indan Ethanone, 2,2-dimethoxy-1,2-diphenyl-. See 2,2-Dimethoxy-2-phenylacetophenone Ethanone, 1-(4-(1,1-dimethylethyl)-2,6-dimethyl-3,5-dinitrophenyl)-. See Musk ketone Ethanone, 1-[4-(1,1-dimethylethyl) phenyl]-. See p-t-Butyl acetophenone Ethanone, 1-(4-ethylphenyl)-. See4-Ethylacetophenone... 

Ethanone, l-(l-hydroxycyclohexyl)-. See Hydroxycyclohexyl methyl ketone Ethanone, 2-hydroxy-1,2-diphenyl-. See Benzoin... 

Ethanone, 1-(2-hydroxy-5-nonylphenyl)-, oxime. See 2-Hydroxy-5-nonylacetophenone oxime Ethanone, 1-(2-hydroxyphenyl)-. Seeo-Hydroxyacetophenone Ethanone, 1-(3-hydroxyphenyl)-. Seem-Hydroxyacetophenone Ethanone, 1-(4-hydroxyphenyl)-. Seep-Hydroxyacetophenone Ethanone, 2-methoxy-1,2-diphenyl-. See Benzoin methyl ether Ethanone, 1-(4-methoxyphenyl)-. See Acetanisole... 

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