Analogs of 2-Arachidonoylglycerin containing the no-donor group
作者:I. V. Serkov、N. M. Gretskaya、V. V. Bezuglov
DOI:10.1007/s10600-012-0253-x
日期:2012.7
1,3-Dinitroglyceryl esters of fatty acids, analogs of endocannabinoid 2-arachidonoylglycerin, were synthesized. Various methods for esterifying fatty acids with glycerine dinitrate were developed.
A convenient method for deoxyfluorination of aromatic and aliphatic carboxylicacids with CF3SO2OCF3 in the presence of a suitable base at room temperature has been developed. The reaction allows a straightforward access to a variety of acyl fluorides and proves that CF3SO2OCF3 is an effective deoxyfluorination reagent for carboxylicacids. The method features simplicity, expeditiousness, high efficiency
已经开发了在室温下在合适的碱存在下用CF 3 SO 2 OCF 3将芳族和脂族羧酸脱氧氟化的简便方法。该反应可直接获得各种酰基氟,并证明CF 3 SO 2 OCF 3是一种有效的羧酸脱氧氟化剂。该方法的特点是简单,快速,高效,易于处理,对官能团的耐受性强,底物范围广,产品收率高,许多胺引发剂的相容性,使用环境友好的试剂以及轻松去除副产物。该反应代表了三氟甲基三氟甲磺酸盐首次用作氟化试剂。
The selective O-acylation of enolates providing a simple entry to O-enesters
作者:Dominique Limat、Manfred Schlosser
DOI:10.1016/0040-4020(95)00250-c
日期:1995.5
In the presence of catalytic amounts of a fluoride source, O-trimethylsilyl enethers undergo condensation with acyl fluorides to afford O-enesters with high yields. The intermediates and final products are pure (Z) isomers if only one double bound is in conjugation with the oxygen atom whereas (E) isomers prevail if silyl dienethers or trienethers and O-dienesters or O-trienesters are formed.
Fluoride ions derived from potassium fluoride and 18-crown-6 efficiently catalyzed the selective O-acylation of a variety of enol silyl ethers with aromatic and aliphatic acyl fluorides to produce unique enol ester derivatives.