This work describes acylation reactions facilitated by a type of heterocycle‐based acyl transfer agent, 2‐acyloxypyridazinone. Reactions of 2‐acyloxypyridazinone with carboxylic acids yield mixed carbonic anhydride intermediates, which are reactive and could be coupled with a wide range of substrates including acids, amines, alcohols, and thiols. The wide substrate scope, ease of operation (no additive
Nucleophilic Aromatic Substitution of Unactivated Fluoroarenes Enabled by Organic Photoredox Catalysis
作者:Vincent A. Pistritto、Megan E. Schutzbach-Horton、David A. Nicewicz
DOI:10.1021/jacs.0c09296
日期:2020.10.7
use of organic photoredox catalysis renders this method operationally simple under mild conditions and is amenable to various nucleophile classes, including azoles, amines, and carboxylic acids. Select fluorinated heterocycles can be functionalized using this method. In addition, the late-stage functionalization of pharmaceuticals is also presented. Computational studies demonstrate that the site selectivity
Effect of hydrophobic-lipophilic interactions on chemical reactivity. 6. The first example of correlation of hydrophobic-lipophilic substituent constants with chemical reactivity for a simple substrate-solvent system
作者:Wei Qiang Fan、Xi Kui Jiang
DOI:10.1021/ja00311a075
日期:1985.12
Etude cinetique de l'hydrolyse de treize palmitates de phenyles meta- et para-substitues dans des melanges DMSO-eau
Etude cinetique de l'hydrolyse de treize palmitates de phenyles meta-et para-substitues dans des melanges DMSO-eau