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.
Disclosed are catalyst solutions for the hydroformylation of formaldehyde comprising one or more fluorophosphite compounds, rhodium and a hydroformylation solvent comprising at least one N,N-disubstituted amide, N-substituted cyclic amide, or a mixture thereof. Also disclosed are hydroformylation processes wherein formaldehyde is contacted with carbon monoxide, hydrogen one or more fluorophosphite compounds, rhodium and a hydroformylation solvent to produce glycolaldehyde. The fluorophosphite-based catalysts provide good reaction rates and high selectivity to glycolaldehyde.
US4115204A
申请人:——
公开号:US4115204A
公开(公告)日:1978-09-19
US7301054B1
申请人:——
公开号:US7301054B1
公开(公告)日:2007-11-27
XtalFluor-E, an Efficient Coupling Reagent for Amidation of Carboxylic Acids
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.