611-70-1Relevant articles and documents
Mixed Picolinate and Quinaldinate Iron(III) Complexes for the Catalytic Oxidation of Alcohols with Hydrogen Peroxide
Tanaka, Shinji,Kon, Yoshihiro,Ogawa, Atsuko,Uesaka, Yumiko,Tamura, Masanori,Sato, Kazuhiko
, p. 2930 - 2938 (2016)
A series of Fe mixed picolinate and quinaldinate complexes that catalyze the H2O2 oxidation of alcohols are presented. The Fe catalysts are generated in situ by simple mixing of iron acetate with 6-methylpicolinic acid (6-MepicH) and 4-chloropicolinic acid (4-ClpicH); they showed high catalytic activity for H2O2 oxidation of 1-phenylethanol to acetophenone. Fe complexes generated in situ as precatalysts were successfully isolated and structurally characterized. Based on the single-crystal X-ray analysis and electrochemical measurements of the Fe complexes, the lability of picolinate and/or quinaldinate ligand and the redox potential of FeIII were found to be important factors for the catalytic reaction.
Organishce Synthesen mit Uebergangsmetallkomplexen XXX. Trimethylenierung von Allenen mit Carben-Eisenkomplexen
Aumann, Rudolf,Melchers, Hans-Dieter
, p. 351 - 358 (1988)
The methylenation of allenes H2C=C=CHR1 II (R1=H, C6H5, OCH3) by carbene iron complexes (CO)4Fe=C(OEt)R I (R=C6H5, CH3) leads to the formation of trimethylenemethane iron complexes.In this reaction the carbene ligand is attached in an unusual way to the c
Kinetics of Ketonization of Isobutyrophenone Enol in Aqueous Solution. Broensted Relations and Analysis of Data by Marcus and Lewis-More O'Ferrall Rate Theories
Pruszynski, P.,Chiang, Y.,Kresge, A. J.,Schepp, N. P.,Walsh, P. A.
, p. 3760 - 3766 (1986)
The enol isomer of isobutyrophenone was generated in aqueous solution from its alkali-metal enolates, and rates of ketonization of the enol in this solvent were measured under catalysis by HCl, NaOH, H3PO4, H2PO4(1-), six carboxylic acids (RCO2H), and six
Cyclometalated (NNC)Ru(ii) complex catalyzed β-methylation of alcohols using methanol
Belkova, Natalia V.,Ganguli, Kasturi,Kundu, Sabuj
supporting information, p. 4354 - 4365 (2022/04/07)
Indolyl fragment containing phenanthroline based new ligands and their corresponding Ru(ii) complexes were synthesized and fully characterized by various spectroscopic techniques. The catalytic activity of these newly synthesized cyclometalated (NNC)Ru(ii) complexes was explored towards the β-methylation of alcohols using methanol. Notably, these complexes displayed superior reactivity compared to various (NNN)Ru(ii) complexes. Utilizing this strategy, a wide range of primary, secondary, and aliphatic straight chain alcohols were selectively methylated. This protocol was further employed for the methylation of a few natural products and the gram scale synthesis of β-methylated alcohols. A series of control experiments and kinetic studies were performed to understand the plausible reaction mechanism.
Nickel-Catalyzed Reductive Acylation of Carboxylic Acids with Alkyl Halides and N-Hydroxyphthalimide Esters Enabled by Electrochemical Process
Guo, Lin,Xia, Raymond Yang,Xia, Wujiong,Yang, Chao,Zhang, Haoxiang,Zhou, Xiao
supporting information, (2022/03/31)
A sustainable Ni-catalyzed reductive acylation reaction of carboxylic acids via an electrochemical pathway is presented, affording a variety of ketones as major products. The reaction proceeds at ambient temperature using unactivated alkyl halides and N-hydroxyphthalimide (NHP) esters as coupling partners, which exhibits several synthetic advantages, including mild conditions and convenience of amplification (58% yield for 6 mmol scale reaction). (Figure presented.).
Electrochemical Difunctionalization of Styrenes via Chemoselective Oxo-Azidation or Oxo-Hydroxyphthalimidation
Jiang, Haobin,Wang, Feng,Ye, Zenghui,Zhang, Fengzhi,Zhu, Rongjin
supporting information, p. 8240 - 8245 (2021/11/17)
Atom- and step-economic oxo-azidation and oxo-hydroxyphthalimidation of styrenes have been developed under mild electrolytic conditions, respectively. Various valuable alpha-azido or hydroxyphthalimide aromatic ketones were synthesized efficiently from readily available styrenes, azides, and N-hydroxyphthalimides. Mechanism studies show that two different pathways involved in these two transformations.