Ligand-free Iron(II)-Catalyzed N-Alkylation of Hindered Secondary Arylamines with Non-activated Secondary and Primary Alcohols <i>via</i>
a Carbocationic Pathway
作者:Onkar S. Nayal、Maheshwar S. Thakur、Manoranjan Kumar、Neeraj Kumar、Sushil K. Maurya
DOI:10.1002/adsc.201701183
日期:2018.2.15
Secondary benzylic alcohols represent a challenging class of substrates for N‐alkylation of amines. Herein, we describe an iron(II)‐catalyzed eco‐friendly protocol for N‐alkylation of secondary arylamines with secondary benzyl alcohols through a carbocationic pathway instead of the known borrowinghydrogen transfer (BHT) approach. Transiently generated carbocations, produced from alcohols via self‐condensation
According to the present invention there is provided a liquid composition, preferably aqueous composition, comprising a deposition aid and a hueing dye and preferably a fabric care benefit agent.
The present disclosure relates to compositions and methodology for revealing binding sites between proteins, proteins and nucleic acids, or proteins and small molecules. The disclosure provides rapid and direct positive identification and sequencing of the contact region between such molecules, and can be applied to individual interacting pairs, as well as large-scale or global interactions.