Halogenation of Carbonyl Compounds - Reference Module in Chemistry, Molecular Sciences and Chemical Engineering/Comprehensive Chirality - 6.20 C–X Bond Formation: αELSEVIERComprehensive Chirality
6.20 C–X Bond Formation: α -Halogenation of Carbonyl CompoundsCarbonyl compoundsChiral N -oxideChiral PTCChiral sec -amineChiral tert -amineEnamine catalysisHalogenationRadical chemistry is amenable to 'green' chemistry based on the performance in water and with a variety of cheap, environmentally ...
halogen compounds (benzene compounds)halogenationdoi:10.1002/chin.201145046Tarek A. SalamaDep. Chem.Zoltan NovakDep. Chem.ChemInformSalama, T.A.; Novak, Z. N-Halosuccinimide/SiCl4 as general, mild and efficient systems for the -monohalogenation of carbonyl compounds and for benzylic halogenation. ...
halogen compounds (naphthalene compounds)indan derivativesdoi:10.1002/chin.198915110BILGER, C.ROYER, R.DEMERSEMAN, P.ChemInformBilger, C., et al., " A Convenient One-Pot Synthesis of Aralkyl Bromides and Iodides by Reductive Halogenation of Aromatic Carbonyl Compounds, " Synthesis 902-904, ...
of 32.6 kcal/mol. This relatively high active free energy may explain why an elevated temperature is essential for an efficient transformation (Table1, entry 3 vs 4). The iodine atom between the two carbonyl groups is more electrophilic than the other iodine atom in DIH, and undergoes ...
Smith AMR, Hii KK (2011) Transition metal catalyzed enantioselective α-heterofunctionalization of carbonyl compounds. Chem Rev 111(3):1637–1656 CAS Google Scholar Hagen J (2015) Industrial catalysis: a practical approach, 3rd edn. Wiley-VCH, Weinheim, Germany Google Scholar Woodley JM (2008...
13. Alcohols and Carbonyl Compounds2h 17m 14. Synthetic Techniques1h 26m 15. Analytical Techniques:IR, NMR, Mass Spect7h 3m 16. Conjugated Systems6h 13m 17. Ultraviolet Spectroscopy51m 18. Aromaticity2h 34m 19. Reactions of Aromatics: EAS and Beyond5h 1m 20. Phenols55m 21. Aldehydes and...
Test 1:Plane of Symmetry 7m Test 2:Stereocenter Test 17m R and S Configuration 43m Enantiomers vs. Diastereomers 13m Atropisomers 9m Meso Compound 12m Test 3:Disubstituted Cycloalkanes 13m What is the Relationship Between Isomers? 16m
the dibromination of α,β-unsaturated carbonyl compounds91,92,93, which always afforded products in low diastereoselectivity with molecular Br2, was tested with TEMPO as the catalyst (Fig.5). Chalcone and its derivatives were dibrominated with high yields (30–31), and it is noteworthy that ...
This invention relates to halogen compounds, more particularly phosphorus halides and the reaction products of phosphorus yentahalides with hydroxy compounds, and a process for the production thereof.