Electrostatic catalysis by ionic aggregates: scope and limitations of Mg(ClO4)2 as acylation catalyst
作者:Asit K Chakraborti、Lalima Sharma、Rajesh Gulhane、Shivani
DOI:10.1016/j.tet.2003.08.007
日期:2003.9
Alkali and alkaline earthmetal perchlorates exhibit electrostatic catalysis in the activation of anhydrides for the acylation reaction. Perchlorates with higher values of the charge-size function of the metal ion exhibit better catalytic activity following the order Mg(ClO4)2>Ba(ClO4)2>LiClO4. Acylation of structurally diverse phenols, thiols, alcohols, and amines have been carried out with stoichiometric
Indium(III) chloride as a new, highly efficient, and versatile catalyst for acylation of phenols, thiols, alcohols, and amines
作者:Asit K. Chakraborti、Rajesh Gulhane
DOI:10.1016/s0040-4039(03)01641-1
日期:2003.8
Indium(III) chloride efficiently catalyses the acylation of structurally diverse phenols, alcohols, thiols, and amines undersolventfree conditions. Acid sensitive alcohols are smoothly acylated without competitive side reactions. Acylation of 2-hydroxynaphthalene is carried out with carboxylic acids adopting the mixed anhydride protocol using trifluoroacetic anhydride.
Abstract Primary alcohols and phenols have been acetylated with acetylimidazole by the solid state reaction, grinding both substrates with a pestle in a mortar.
摘要 伯醇和酚通过固态反应与乙酰咪唑乙酰化,在研钵中用研杵研磨两种基材。
Substrate substitution effects in the Fries rearrangement of aryl esters over zeolite catalysts
作者:Ronghe Lin、Sharon Mitchell、Thomas Netscher、Jonathan Medlock、René T. Stemmler、Werner Bonrath、Ulla Létinois、Javier Pérez-Ramírez
DOI:10.1039/d0cy00590h
日期:——
zeolites exhibiting the best performance. Extension of the substrate scope by substituting methyl groups in multiple positions identifies a framework-dependent effect on the rearrangement chemistry and highlights the potential for the transformation of dimethylphenyl acetates. Kinetic studies show that the major competitive path of cleavage of the ester C–O bond usually occurs in parallel to the Fries rearrangement
SIK INHIBITOR FOR USE IN A METHOD OF TREATING AN INFLAMMATORY AND/OR IMMUNE DISORDER
申请人:UNIVERSITY COURT OF THE UNIVERSITY OF DUNDEE
公开号:US20150045370A1
公开(公告)日:2015-02-12
The present invention relates to the discovery that salt inducible kinases (SIKs) suppress the formation of anti-inflammatory molecules such as IL-10, which are important for the resolution of inflammation and identifies SIK inhibitors that may be used to treat disorders associated with undesirable inflammation, such as inflammatory bowel disease and/or autoimmune disorders.