464-72-2Relevant articles and documents
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Jerumanis,Martel
, p. 1716,1719 (1970)
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Visible-Light Induced Photofixation of CO2 into Benzophenone Catalyzed by Colloidal CdS Microcrystallites
Kanemoto, Masashi,Ankyu, Hirofumi,Wada, Yuji,Yanagida, Shozo
, p. 2113 - 2114 (1992)
Photocatalytic fixation of CO2 into benzophenone has been achieved under λ > 400-nm light irradiation of a CO2-saturated DMF solution of colloidal CdS microcrystallites as photocatalysts, triethylamine as a sacrificial electron donor, and benzophenone yielding benzilic acid with benzhydrol and benzopinacol.
Chemical reactions of benzophenone photoirradiated in 1,2-polybutadiene
Barboiu, Virgil,Avadanei, Mihaela Iuliana
, p. 170 - 179 (2011)
The photolysis of benzophenone (BP) in 1,2-polybutadiene (1,2PB) was studied at low radiation intensity in order to clarify some aspects of BP photochemistry and of 1,2PB photocrosslinking. The expected primary photoreactions of hydrogen abstraction and c
Interaction between alkali metal aromatic ketone radical anions and the chlorides of lithium and magnesium in solution. A case of a carbon-carbon bond strengthening through complex formation
Micha-Screttas, Maria,Heropoulos, Georgios A.,Steele, Barry R.
, p. 2685 - 2690 (1999)
The interaction between lithium, sodium and potassium salts with the pre-formed radical anions of benzophenone, 2-methylbenzophenone, 2,4,6-trimethylbenzophenone or fluorenone, and lithium or magnesium chlorides has been studied by nuclear magnetic resona
Den Hollander et al.
, p. 211,212 (1977)
Neckers,Colenbrander
, p. 5045 (1968)
Pitts et al.
, p. 3606 (1964)
Photochemical Cycloaddition of Benzophenone to 7-Methylenetetracyclo2,8.04,6>octan-3-one and its Alcohol Derivative
Nitta, Makoto,Kuroki, Toshio,Sugiyama, Hiroshi
, p. 378 - 380 (1980)
Irradiation of benzophenone with 2,4-dimethyl- or 1,2,4-trimethyl-7-methylenetetracyclo2,8.04,6>octan-3-one affords oxetans (3a) and (3b), respectively, while irradiation with the alcohol derivative (2) affords a rearranged product (5) in addition to an oxetan.
Billet,Smith
, p. 4108 (1968)
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Bowen,de la Praudiere
, p. 1503,1504 (1934)
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Ultrasound effects on the photopinacolization of benzophenone
Gaplovsky,Gaplovsky,Toma,Luche
, p. 8444 - 8447 (2000)
Ultrasonic irradiation is able to modify the course of several photochemical reactions, especially bimolecular, proceeding via triplet states. These effects were illustrated in the study of benzophenone photopinacolization in ethanol. The rates and yields increase when sonication is applied simultaneously to UV irradiation. An explanation is based on a 2-fold effect: (i) light-absorbing transient species undergo sonolytic decomposition, making the photoconversion more efficient, and (ii) sonication induces the triplet state quenching, as shown by Stern-Volmer plots from experiments run in the presence of naphthalene, probably due to the easier collisional deactivation processes favored by the homogeneous distribution of the activated species.
Visible-Light Induced Photocatalysis of Partially Fluorinated Poly(p-phenylene) and Related Linear Phenylene Derivatives
Maruo, Katsuyo,Yamada, Kazuyori,Wada, Yuji,Yanagida, Shozo
, p. 1053 - 1064 (1993)
As a partially fluorinated poly(p-phenylene) derivative, yellow powder PF-PPP-n with high solubility in organic solvents was prepared as a mixture of oligomers by nickel-catalyzed polycondensation of the Grignard reagent from 1-bromo-2,4,6-trifluorobenzene.PF-PPP-n shows photocatalytic activity for reduction of water to H2, carbonyl compounds to alcohols, and dimethyl maleate and fumarate to the succinate under visible-light (λ > 400 nm) irradiation in the presence of triethylamine as a sacrificial electron donor.The photocatalysis was compared with those of other related fluorinated linear aromatics such as perfluorinated poly(p-phenylene sulfide) (F-PPS-n), perfluorinated poly(p-phenylene) (F-PPP-n).Their spectral characteristics and photocatalysis are discussed on the basis of the semiempirical molecular orbital calculations.
Photodriven Dehydrogenative Homocoupling of Benzylic C-H Bonds Forming Strained C-C Bonds
Ishida, Naoki,Son, Mingon,Kawasaki, Tairin,Ito, Misato,Murakami, Masahiro
supporting information, p. 2067 - 2070 (2021/10/14)
A photoinduced dehydrogenative homocoupling reaction of alkylarenes is reported. Gaseous hydrogen is evolved as the sole byproduct and neither oxidants nor hydrogen acceptors are required. The present reaction offers an environmentally benign and atom-economical means for forming sterically strained C-C single bonds. It also gives a remarkable example of photodriven reactions overcoming a considerable rise in energy.
Site-selective D2O-mediated deuteration of diaryl alcoholsviaquantum dots photocatalysis
Li, Xu-Bing,Nan, Xiao-Lei,Tung, Chen-Ho,Wang, Yao,Wu, Li-Zhu
supporting information, p. 6768 - 6771 (2021/07/13)
Owing to the high synthetic value of deuteration in the pharmaceutical industry, we describe herein the conversion of a range of aromatic ketones to deuterium-labeled products in good to excellent yields. Efficient and site-selective deuteration of benzyl alcohols by D2O with visible light irradiation of quantum dots (QDs), together with gram-scale synthesis and photocatalyst recycling experiments indicated the potential of the developed method in practical organic synthesis.
CBZ6 as a Recyclable Organic Photoreductant for Pinacol Coupling
Wang, Hua,Qu, Jian-Ping,Kang, Yan-Biao
supporting information, p. 2900 - 2903 (2021/05/05)
A recyclable organic photoreductant (1 mol % CBZ6)-catalyzed reductive (pinacol) coupling of aldehydes, ketones, and imines has been developed. Irradiated by purple light (407 nm) using triethylamine as an electron donor, a variety of 1,2-diols and 1,2-diamines could be prepared. The oxidation potential of the excited state of CBZ6 is established as -1.92 V (vs saturated calomel electrode (SCE)). The relative high reductive potential enables the reductive coupling of carbonyl compounds and their derivatives. CBZ6 can be prepared in gram scale and is acid/base- or air-stable. It could be applied in large-scale photoreductive synthesis and recovered in high yield after the reaction.