Synthesis of Imidates: TFA-Mediated Regioselective Amide Alkylation Using Meerwein's Reagent.

J Org Chem

Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P.O. Box 124, 221 00 Lund, Sweden.

Published: April 2016

AI Article Synopsis

  • Researchers faced challenges with regioselective O-alkylation of amides, leading to inconsistent and often unwanted N-alkylation products.
  • A new protocol has been developed that ensures complete regioselectivity in the formation of imidates from amides.
  • The new method has been tested on various substrates, proving its reliability and effectiveness in achieving the desired results.

Article Abstract

Regioselective O-alkylation of an amide to form the corresponding imidate is a common synthetic problem, often resulting in varying amounts of N-alkylation. Screening existing methods for converting amides to imidates gave inconsistent or irreproducible results, sometimes affording N-alkylamide as the major product. A simple and reliable protocol for amide O-alkylation with complete regioselectivity has been designed, and its scope and efficiency demonstrated on a number of substrates.

Download full-text PDF

Source
http://dx.doi.org/10.1021/acs.joc.6b00424DOI Listing

Publication Analysis

Top Keywords

synthesis imidates
4
imidates tfa-mediated
4
tfa-mediated regioselective
4
regioselective amide
4
amide alkylation
4
alkylation meerwein's
4
meerwein's reagent
4
reagent regioselective
4
regioselective o-alkylation
4
o-alkylation amide
4

Similar Publications

Isoindoline-1,3-dione, also referred as phthalimide, has gained recognition as promising pharmacophore due to the documented biological activities of its derivatives. Phthalimides are a family of synthetic molecules that exhibit notable bioactivity across various fields, particularly as anticancer and anti-inflammatory agents. This review focuses on syntheses and anti-inflammatory studies of the reported phthalimide derivatives.

View Article and Find Full Text PDF

Theoretical Insights into the Efficient Reduction of Nitrate to Ammonia on Crystalline Carbon Nitride.

ACS Appl Mater Interfaces

December 2024

Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350108, China.

The nitrate reduction reaction (NORR) has emerged as a promising approach for wastewater treatment and ammonia (NH) synthesis. Poly(triazine imide)/LiCl (PTI/LiCl), a highly crystalline carbon nitride with a well-defined structure, has shown significant potential in this field. In this study, the electronic properties and catalytic performance of PTI/LiCl for NORR were investigated through theoretical calculations.

View Article and Find Full Text PDF

Photocatalytic water splitting holds great potential for transforming solar energy into valuable chemical products. However, obstacles such as the rapid recombination of electron-hole pairs and insufficiently active surface areas of photocatalysts remain significant challenges. In this study, we present the first demonstration that lithium bis(trifluoromethanesulfonyl)imide vapor successfully etches aluminum from NbAlC MAX phase powders while concurrently forming NbOF anchors on NbCT nanosheet (NbCTNS) MXene, leading to the in situ formation of a NbCTNS/NbOF heterostructure composite.

View Article and Find Full Text PDF

A domino approach towards β-carboline natural product taraxacine A and its analogues was developed. The main step relies on a silver(I) and base co-catalysed imidate-alkyne cyclization. The reaction tolerates primary and secondary alcohols, and various substitutions in the indole are possible.

View Article and Find Full Text PDF

Mechanochemical Synthesis of Molecular Chemoreceptors.

ACS Omega

December 2024

Faculty of Chemistry, Warsaw University of Technology, Noakowskiego Str. 3, 00-664 Warsaw, Poland.

The design of environmentally friendly methods for synthesizing molecular receptors is an expanding area within applied organic chemistry. This work systematically summarizes advances in the mechanochemical synthesis of molecular chemoreceptors. It discusses key achievements related to the synthesis of chemoreceptors containing azine, Schiff base, thiosemicarbazone, hydrazone, rhodamine 6G, imide, or amide moieties.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!