2-Hydroxy-3-methoxybenzophenone benzophenone

Hydroxy- 4-methoxybenzophenone OH 0 CH.O-( )- i -(g) Substituted monohydroxy-benzophenone Negligible absorption in visible range. 

Only para coupling was observed during the alkaline ferricyanide oxidation of 4-hydroxy-3-(3-hydroxybenzoyl)benzoic acid. 7-Hydroxy-9-oxoxanthene-2-carboxylic acid (515) was obtained in 21% overall yield from methyl 4-hydroxybenzoate (78JCS(P1)876). The synthesis utilizes a photochemical Fries rearrangement of methyl 4-(3-methoxybenzoyloxy)benzoate to prepare the benzophenone (514 Scheme 189). A similar route was used to prepare 2-hydroxy-2 -methoxybenzophenones, which undergo intramolecular cyclization with loss of methanol on treatment with base. 

SYNS BENZOPHENONE-3 CYASORB LW 9 2-HYDROXY-4-METHOXYBENZOPHENONE (2-HYDROXY-4-METHOXYPHENYL)PHENYLMETHAN-ONE MOB NCI-C60957 NSC-7778 OXYBENZ-ONE SPECTRA-SORB UV 9 SYNTASE 62 USAF CY-9 UVINUL M 40... 

Poly[styrene-co-(2-hydroxy-4 -vinylbenzophenone)] was less efficient in PS than 2-hydroxy-4-methoxybenzophenone [334]. Similarly, PE films doped with 4-dodecyloxy-2-hydroxybenzophenone (0.1 mol%) were more stable than PE doped with copolymers of ethylene with polymerisable benzophenones having a comparable content of chromophores [54]. The efficiency of a SAN type LS, a terpolymer of 2-hydroxy-4-(4-vinylbenzyloxy)benzophenone with acrylonitrile and styrene did not exceed that of conventional LS [84]. No efficiency loss of 2-hydroxy-4-methacryloyloxybenzophenone in ABS was observed after bonding into a terpolymer with styrene and acrylonitrile. The homopolymer was slightly inferior to both the monomer and terpolymer [84]. A better protection of PP was provided by poly[(2-hydroxy-3-allyl-4-methoxyphenylbenzophenone)-co-dibutyl maleate] than with 2-hydroxy-3-allyl-4-methoxybenzophenone [335] (stabilization tests were performed in the presence of phenolic antioxidants). A comparable or better light stabilizing efficiency of poly[vinyl acetate-co-(5-methylacryloyloxy salicylate)] or poly(2-allylphenyl salicylate-co-dioctyl maleate) than that of alkyl-phenyl salicylates was observed in polyolefins [335]. 

Sulisobenzone. 5-Benzoyl-4-hydroxy-2-methoxy-benzenesulfonic acid 3-benzoyl -4 -hydroxy -6 -methoxybenz-enesulfonic add 2-benzoy] -5 -methoxy-1 -phenol -4 -sulfonic acid 2-hydroxy-4-methoxybenzophenone-5-sulfonic acid benzophenone-4 NSC -60584 Cyasorb UV 284 (obsolete) Spectra-Sorb UV 284 Sungard Uval Uvinul MS-40. C14-HjjCLS mol wt 308.31. C 54.54%, H 3.92%. O 31.14%. S 10.40%. Prepn A. J. Cofrancesco, Brit. pat. 1,136,525... 

CAS 131-57-7 EINECS/ELINCS 205-031-5 Synonyms 2-Hydroxy-4-methoxybenzophenone (2-Hydroxy-4-methoxy-phenyl) phenylmethanone Methanone (2-hydroxy-4-methoxyphenyl) phenyl- 4-Methoxy-2-hydroxybenzophenone Oxybenzone Classification Organic benzophenone deriv. 

Hydroxy-4-methoxybenzophenone-5-sodium sulfonate. See Benzophenone-5 2-Hydroxy-4-methoxybenzophenone-5-sulfonic acid. See Benzophenone-4 N-(4-Hydroxy-3-methoxybenzyl) nonanamide. See Pelargonyl vanillylamide Nonanoyl 4-hydroxy-3-methoxybenzylamide 4-Hydroxy-3-methoxycinnamic acid. See Ferulic acid... 

Benzophenone 2-hydroxy-4-methoxybenzophenone 2-hydroxy-4-n-octoxybenzophenone 2,4-dihydroxy-4-7i-dodecycloxybenzophenone... 

Hydroxy-4-methoxybenzophenone Eusolex 4360, Escalol 567, Oxybenzone, Benzophenone 3... 

Fig. 63. Ultraviolet absorption spectra of solutions of benzophenone derivatives in dichloroethane. 1) 2-Hydroxy -2-methoxybenzophenone ...

Chemical cellulose esters are relatively stable to UV radiation since they lack aromatic chromophores. Even so, exposure to UV radiation may cause some chain scission and loss of physical properties in cellulose esters exposed to outdoor environments esters formulated for such use must be stabilized accordingly. Some resorcinol and benzophenone derivatives, such as resorcinol monobenzoate and 2-hydroxy-4-methoxybenzophenone, are reportedly excellent UV-light stabilizers for cellulose esters (56,57). Other stabilizers include piperidine derivatives (58) and substituted triazole compounds alone (59) and in combination with resorcinol monobenzoate (60). 

Hydroxy- 4-methoxybenzophenone OH O Substituted monohydroxy-benzophenone Negligible absorption in visible range. 

Stabilizers UVA 2-hydroxy-4-methoxybenzophenone 2,4-dihydroxy-benzophenone 2-benzotriazol-2-yl-4,6-di-tert-butylphenol 2-(2H-benzotriazole-2-yl)-4,6-di-tert-pentylphenol N-(2-ethoxyphenyl)-N -(4-isododecylphenyl)oxamide HAS decane-dioic acid, bis(2,2,6,6-tetramethyl-1-(octyloxy)-4-piperidinyl) ester, reaction products with 1,1-dimethylethylhydroperoxide and octane 2,4-bis[N-butyl-N-(1-cyclohexyloxy-2,2,6,6-tetra-methylpiperidin-4-yl)amino]-6-(2-hydroxyethylamine)-1,3,5-trlazlne bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate and methyl 1,2,2,6,6-pentamethyl-4-piperidyl sebacate 2-dodecyl-N-(2,2,6,6-tetramethyl-4-piperidinyl)succinimide polymer of 2,2,4,4-tetramethyl-7-oxa-3,20-diaza-dispiro [5.1.11,2]-hene-lcosan-21-on and epichlorohydrin Screener Ti02 Phosphite phosphoric acid, (2,4-di-butyl-6-methylphenyl)ethylester ... 

N.B. This benzophenone was mentioned in the [Chem. Abstr., 113, 131832x (1990)]. It has never been prepared by authors [58]. The paper actually concerns the 3,5-di-chloro-2 -hydroxy-2-methoxybenzophenone or(3,5-dichloro-2-methoxyphe-nyl)(2-hydroxyphenyl)-methanone. hi entry 6 (table 1) of the paper [58], R3 = H, but this information was not indicated in this one [980]. 

Cyasorb UV-9. 2-Hydroxy-4-methoxybenzophenone and Oxybenzone, 79 Cyasorb UV-24, 2,2 -Dihydroxy-4-methoxybenzophenone or Dioxybenzone, 432 Cyasorb UV-531. 2-Hydroxy-4-(octyloxy)benzophenone, 134 Dalbergin. 6-Hydroxy-7-melhoxy-4-phenylcoumarin, 100 Dastib 242. 2-Hydroxy-4-(2-elhylhexyloxy)benzophenone, 135 Dehydrogriseofulvin. 7-Chloro-2, 4,6-trimethoxy-6 -methylspiro[benzofuran-2(3H),l -[2,5]cyclo-hexadiene-3,4 -dione, 458 Diethylene glycol. 2,2 -Oxybisethanol, 134, 507 Diglycol. Diethylene glycol, 507... 

Hydroxymethanesulfinic acid monosodium salt Hydroxymethanesulfinic acid sodium salt. See Sodium formaldehyde sulfoxylate 2-Hydroxy-4-methoxybenzophenone (2-Hydroxy-4-methoxyphenyl) phenyl-methanone. See Benzophenone-3 (Hydroxymethyl) benzene. See Benzyl alcohol N-(Hydroxymethyl)-N-(1,3-dihydroxymethyl-2,5-dioxo-4-imidazolidinyl)-N -(hydroxymethyl) urea. See Diazolidinyl urea 2-Hydroxy-1-methylethanol. See Isopropanolamine 2-Hydroxymethylfuran. See Furfuryl alcohol... 

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