The mechanism of N - alkylation of weak N - H - acids by phase transfer catalysis [J ] . Tetrahedron Letters ,1985 ,26 (3) :297 - 300.DEHMOLW E V,THIESER R.The mechanism of Nalkylation of weak N-H-acids by phase transfer catalysis.Tetrahedron Letters. 1985...
The alkylation of aromatic amines in the presence of inorganic bases is accelerated by a PT catalyst even if KHCO3 is the base. ArNRθ ions seem not to be involved. A novel type of mechanism for a PTC process is proposed.DOI: 10.1016/S0040-4039(01)80801-7 被...
DFT calculations have been carried out to study the mechanism of Cu(AcO)2-catalyzed N-alkylation of amino derivatives with primary alcohols. The calculations indicate that tBuOK is necessary for the generation of the active catalyst from Cu(AcO)2 and that the catalytic cycle involves three sequen...
6-Methyl-3-phenyl-1,6-dihydro-1,2,4,5-tetrazine was stable in alkali solution at room temperature and decomposed gradually to form 1,2-dibenzylidenehydrazine. The plausible mechanism of the reaction is discussed. Because it was stable for a period of time, a convenient and effective method ...
C. Photoinduced, copper-catalyzed enantioconvergent alkylations of anilines by racemic tertiary electrophiles: synthesis and mechanism. J. Am. Chem. Soc. 144, 4550–4558 (2022). Article CAS PubMed PubMed Central Google Scholar Lee, H. et al. Investigation of the C–N bond-forming step in...
The mechanism is assumed to involve an aldehyde pathway.G. JennerJournal of Molecular CatalysisHomogeneous ruthenium catalysis of N-alkylation of amides and lacta-ms. Jenner G. Journal of Molecular Catalysis . 1989
The proposed mechanism was also showed.doi:10.1002/slct.201701715Fengping YiSchool of Perfume and Aroma Technology Shanghai Institute of Technology Shanghai 201418 Peoples Republic of ChinaYanxia FanSchool of Perfume and Aroma Technology Shanghai Institute of Technology Shanghai 201418 Peoples Republic ...
However, this protocol proceeds via electrophilic activation and does not involve a hydrogen borrowing mechanism. Recently, a significant breakthrough was accomplished by Feringa and Barta in the alkylation of amines with alcohols using Kno¨lker's iron complex28. This work stimulated further ...
Precious research studies have proved that the uptake mechanism of benzophenothiazine depends on the membrane’s pH gradient. NH2NBS and EtNBS are mainly localized in lysosomes, while NMe2NBS are mainly localized in mitochondria. We conjecture that the uptake of NMe2NBS can be modulated by ...
The mechanism of the reaction, involving intramolecular hydrogen abstraction by amino radical cations, and the...doi:10.1002/chin.197835270CITTERIO, A.CROLLA, T.WILEY‐VCH Verlag GmbHChemischer Informationsdienst