Reductive coupling of ferrocenyl atones by low-valent titanium reagents. Synthesis and characterization of some 1,2-diferrocenylethenes and 1,2-diferrocenylethanes
Magnesium salt promoted tandem nucleophilic addition–Oppenauer oxidation of aldehydes with organozinc reagents
作者:Ying Fu、Xing Ling Zhao、Hulmet Hügel、Danfeng Huang、Zhengyin Du、Kehu Wang、Yulai Hu
DOI:10.1039/c6ob01668e
日期:——
A magnesium salt promoted synthesis of ketones via tandem nucleophilic addition–Oppenauer oxidation of aldehydes using organozinc chemistry was demonstrated. Magnesium salts concomitantly generated via magnesium metal mediated organohalide zincation exhibit high efficacy for nucleophilic addition of organozinc reagents to aromatic aldehydes and thereafter Oppenauer oxidation whereby ketones are formed
Highly Enantioselective Cobalt-Catalyzed Hydroboration of Diaryl Ketones
作者:Wenbo Liu、Jun Guo、Shipei Xing、Zhan Lu
DOI:10.1021/acs.orglett.0c00293
日期:2020.4.3
A highlyenantioselective cobalt-catalyzed hydroboration of diaryl ketones with pinacolborane was developed using chiral imidazole iminopyridine as a ligand to access chiral benzhydrols in good to excellent yields and ee. This protocol could be carried out in a gram scale under mild reaction conditions with good functional group tolerance. Chiral biologically active 3-substituted phthalide and (S)-neobenodine
Friedel—Crafts alkylations of ferrocene with unsaturated lactones. Some unusual reactions caused by the β-ferrocenylcarbenium ion
作者:M. Salisǒvá、Š. Toma、E. Solčániová
DOI:10.1016/0022-328x(87)80229-2
日期:1987.6
Friedel—Crafts alkylations of ferrocene with 5- and 6-membered unsaturated lactones have been studied. The expected alkylation products were isolated in the case of 5-membered lactones, while several products such as unsaturated ferrocenyl-lactones, ferrocenyldiketones as well as ferrocenylhydroxylactones were isolated in the case of 6-membered lactones. β-Ferrocenylcarbenium ion was suggested to be
Systematic Evaluation of 1,2-Migratory Aptitude in Alkylidene Carbenes
作者:Harvey J. A. Dale、Chris Nottingham、Carl Poree、Guy C. Lloyd-Jones
DOI:10.1021/jacs.0c12400
日期:2021.2.3
carbenes undergo rapid inter- and intramolecular reactions and rearrangements, including 1,2-migrations of β-substituents to generate alkynes. Their propensity for substituent migration exerts profound influence over the broader utility of alkylidene carbene intermediates, yet prior efforts to categorize 1,2-migratory aptitude in these elusive species have been hampered by disparate modes of carbene generation
Design, synthesis and fungicidal activity studies of 3-ferrocenyl-N-acryloylmorpholine
作者:Peiqi Chen、Chunjuan Liu、Jianfeng Hu、Hao Zhang、Ranfeng Sun
DOI:10.1016/j.jorganchem.2017.11.015
日期:2018.1
medical and pesticide fields. In order to get fungicides with higher biological activity, ferrocenyl groups were introduced into the skeleton of dimethomorph instead of phenyl groups and a series of 3-ferrocenyl-N-acryloylmorpholine were synthesized. The fungicidal bioassay results indicated that most of compounds showed moderate fungicidalactivities against 14 kinds of agricultural pathogenic fungi