56010-63-0Relevant academic research and scientific papers
Phosphinous Acid Platinum Complex as Robust Catalyst for Oxidation: Comparison with Palladium and Mechanistic Investigations
Membrat, Romain,Vasseur, Alexandre,Martinez, Alexandre,Giordano, Laurent,Nuel, Didier
supporting information, p. 5427 - 5434 (2018/10/20)
Secondary phosphine oxides proved to be effective preligands to stabilise a hydroxy-platinum based catalyst that allows the aerobic/anaerobic oxidation of challenging substrates. Kinetic comparisons showed that this system is more efficient and stable than previously reported similar palladium-based catalysts. A neutral platinum dimer bearing bridging hydroxy ligands has been isolated and fully characterised by X-ray diffraction and its involvement in the mechanism has been evidenced by mechanistic studies.
Visible-Light-Mediated Rose Bengal-Catalyzed α-Hydroxymethylation of Ketones with Methanol
Yang, Jingya,Xie, Dongtai,Zhou, Hongyan,Chen, Shuwen,Duan, Jiaokui,Huo, Congde,Li, Zheng
supporting information, p. 3471 - 3476 (2018/09/12)
A visible-light-mediated α-hydroxymethylation of ketones using methanol as the hydroxymethylating reagent has been developed. Using 1 mol% rose bengal as the photosensitizer and air as the green oxidant, the reactions proceeded smoothly at room temperature. Experimental studies indicate the reaction proceeded via a radical pathway. (Figure presented.).
Selective aldehyde reduction in ketoaldehydes with NaBH4-Na 2CO3-H2O at room temperatures
Chandrasekhar, Sosale,Shrinidhi, Annadka
, p. 2051 - 2056 (2014/07/07)
A variety of aliphatic and aromatic ketoaldehydes were reduced to the corresponding ketoalcohols with a mixture of sodium borohydride (1.2 equivalents) and sodium carbonate (sixfold molar excess) in water. Reactions were performed at room temperatures(typically) 2 h, and yields of isolated products generally ranged from 70% to 85%. A bis-carbonate-borane complex, [(BH3)2CO2]2- 2Na+, possibly formed from the reagent mixture, is likely the active reductant. The moderated reactivity of this acylborane species would explain the chemoselectivity observed in the reactions. The readily available reagents and the mild aqueous conditions make for ease of operation and environmental compatibility, and make a useful addition to available methodology. Copyright
Chemoselective oxidation by electronically tuned nitroxyl radical catalysts
Hamada, Shohei,Furuta, Takumi,Wada, Yoshiyuki,Kawabata, Takeo
supporting information, p. 8093 - 8097 (2013/08/23)
Electronic tuning: Nitroxyl radical 1 is shown to be an efficient catalyst for the oxidation of secondary alcohols, and promotes oxidation through an oxoammonium species which is highly reactive because of the adjacent electron-withdrawing ester groups. Chemoselective oxidation of benzylic alcohols in the presence of aliphatic alcohols is observed and is proposed to proceed by a rate-determining hydride transfer. Copyright
CHEMOSELECTIVE REDUCTION OF ALDEHYDES WITH ZINC BOROHYDRIDE IN TETRAHYDROFURAN
Ranu, Brindaban C.,Chakraborty, Rupak
, p. 7663 - 7664 (2007/10/02)
A variety of structurally different aldehydes undergo chemoselective reduction over ketones with zinc borohydride in tetrahydrofuran at -10 deg C to the corresponding alcohols.
SYNTHESIS OF 2,2-DIMETHYL-1-AMINOCYCLOPROPANECARBOXYLIC ACID FROM β-CHLOROIMINES
Kimpe, Norbert De,Sulmon, Paul,Schamp, Niceas
, p. 5029 - 5032 (2007/10/02)
2,2-Dimethyl-ACC, a potential plant growth regulator, was synthesized by cyclopropanation of β-chloroimines.
Synthesis of β-Chloroimines
Sulmon, Paul,Kimpe, Norbert De,Verhe, Roland,Buyck, Laurent De,Schamp, Niceas
, p. 192 - 195 (2007/10/02)
β-Chloroimines 6 have been prepared from β-chlorocarbonyl compounds 5 by reaction with primary amines via two major approaches.
