Detail of "24650-42-8"

CAS Number:
24650-42-8
Name:
Ethanone,2,2-dimethoxy-1,2-diphenyl-
Superlist Name:
2,2-Dimethoxy-2-phenylacetophenone
Molecular Structure:
Formula:
C₁₆H₁₆O₃
Molecular Weight:
256.30
Deleted CAS:
91274-91-8| 91234-65-0|89697-37-0|88658-61-1|85568-54-3|68072-91-3
Synonyms:
Benzildimethyl acetal (6CI);1,2-Diphenyl-2,2-dimethoxyethanone;2,2-Dimethoxy-1,2-diphenyl-1-ethanone;2,2-Dimethoxy-1,2-diphenylethanone;2,2-Dimethoxyphenylacetophenone;2-Phenyl-2,2-dimethoxyacetophenone;Aronix C 101;BDK;Benzil dimethyl ketal;Benzil mono(dimethyl acetal);Benzil mono(dimethyl ketal);Benzoin dimethylether;DMPA;Esacure KB 1;Irgacure 621;Irgacure 641;Irgacure 651;Irgacure 654;Irgacure 671;KB 1;Micure BK 6;Photomer51;Quantacure BDK;SB-PI 718;a,a-Dimethoxy-a-phenylacetophenone;a,a-Dimethoxydeoxybenzoin;w,w-Dimethoxy-w-phenylacetophenone;TR-BDK;
EINECS:
246-386-6
Density:
1.122 g/cm³
Melting Point:
67-70 °C(lit.)
Boiling Point:
371.1 °C at 760 mmHg
Flash Point:
169.6 °C
Solubility:
20 mg/mL in Methylene chloride
Appearance:
white crystal
Hazard Symbols:
Xi, N
Risk Codes:
43-50/53
Safety:
36/37-60-61 Details
Transport Information:
UN 3077 9/PG 3
particular:
particular

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Reference

Symmetrical monoacetals of aromatic 1,2-diketones starting from the corresponding a-hydroxyl ketones: Symmetrical monoacetals of aromatic 1,2-diketones starting from the corresponding a-hydroxyl ketones. LiBassi, Giuseppe; Cadona, Luciano (Filli Lamberti S.p.A., Italy). Eur. Pat. Appl. EP 85031 A2 3 Aug 1983, 22 pp. DESIGNATED STATES: R: DE, FR, GB. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C07C049-84; C07C045-61; C07C043-307; C07C041-48. APPLICATION: EP 83-830005 19 Jan 1983. PRIORITY: IT 82-47631 22 Jan 1982. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) Section cross-reference(s): 25, 35 Sym. monoacetals of arom. 1,2-diketones useful as photoinitiators for UV polymn. are prepd. by reacting the corresponding a-hydroxy ketones with a halogenating agent in the presence of N-substituted C1-15 aliph. amide or alc. and with an alkali metal alcoholate or an alc. Thus, a mixt. of 6.6 g DMF in 50 mL SO2Cl2 and 65 g benzoin [119-53-9] was heated at 40-43° for 45 min. The mixt. was chilled and 21 g AcOH dild. with 12.7 g H2O was added followed by 35 g H2O to give 2,2-dichloro-1,2-diphenylethanone (I) [31315-51-2]. A soln. of 37.6 g MeONa [124-41-4] in 150 mL MeOH was added dropwise at 5-6° to 73.8 g I in 500 mL MeOH. The mixt. was left at room temp. for 16 h and neutralized to pH 2.8 to give 67.8 g 2,2-dimethoxy-1,2-diphenylethanone (II) [24650-42-8]. A mixt. of II 2.0, phthalic unsatd. polyester 80, and styrene 20 g was polymd. to give a polymer having shelf life (at 60°) 6 days and Sward hardness (after 1 h) 46, compared with 4 days and 36, resp., using benzoin iso-Bu ether as photoinitiator.

2-Acylated dihydro-1,3-dioxepins and their use as photoinitiators: 2-Acylated dihydro-1,3-dioxepins and their use as photoinitiators. Scharf, Hans Dieter; Frauenrath, Herbert; Heine, Hans Georg; Rudolph, Hans; Neuhaus, Karl Friedrich; Bendszus, Otto (Bayer A.-G.Several substances are used for example 6117-80-2 and 89311-76-2 which are their cas registry numbers. , Fed. Rep. Ger.). Ger. Offen. DE 3226617 A1 19 Jan 1984, 21 pp. (German). (Germany). CODEN: GWXXBX. CLASS: IC: C07D321-06; C08F002-50; C08F283-00; C08J003-24; C08K005-07. APPLICATION: DE 82-3226617 16 Jul 1982. DOCUMENT TYPE: Patent CA Section: 42 (Coatings, Inks, and Related Products) Section cross-reference(s): 28 The title compds. are nonyellowing initiators of photochem. curing and polymn. Thus, heating PhCOC(OMe)2Ph [24650-42-8] 77, cis-2-butene-1,4-diol [6117-80-2] 160, and p-MeC6H4SO3H 1 g at 10-15 mm for 45 min at 50-70° and 195 min at 65-70° gave 80 g 2-benzoyl-4,7-dihydro-2-phenyl-1,3-dioxepin (I) [89311-76-2]. A mixt. of polyurethane acrylate 150, reactive diluent (oxyethylated trimethylolpropane triacrylate) 77.5, hexamethylene diacrylate 112.5, and I 8.5 parts was coated to 8 m on art paper and exposed to an 80-W/cm UV lamp at a distance of 8 cm, giving a scratch- and solvent-resistant coating at a rate of 5 m/min, compared with 5 (with yellowing) with PhCOC(OMe)2Ph in place of I, and 2.5 with 2-benzoyl-2-phenyl-1,3-dioxolane in place of I. .

Detail of "24650-42-8"

Ethanone,2,2-dimethoxy-1,2-diphenyl-

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CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

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CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

CAS No.24650-42-8 2,2-Dimethoxy-2-phenylacetophenone

Reference