XtalFluor-E, an Efficient Coupling Reagent for Amidation of Carboxylic Acids
摘要:
Amides were produced from carboxylic acids and amines by using XtalFluor-E as an activator. Even poorly reactive carboxylic acids can be transformed to amides. In addition, optically active amines and/or carboxylic acids were not epimerized/racemized during the process.
Chemoselective alkynylation of N-sulfonylamides versus amides and carbamates – Synthesis of tetrahydropyrazines
作者:Thomas Aubineau、Janine Cossy
DOI:10.1039/c3cc40529j
日期:——
The chemoselective alkynylation of N-sulfonylamides versus amides and carbamates using TMS-EBX as an alkynylatingagent leads to the formation of non-symmetrical tetrahydropyrazines from orthogonally protected diamines.
Amides were produced from carboxylic acids and amines by using XtalFluor-E as an activator. Even poorly reactive carboxylic acids can be transformed to amides. In addition, optically active amines and/or carboxylic acids were not epimerized/racemized during the process.