使用温和的环脱水/芳香化反应,通过使用三氟甲磺酸酐(Tf 2 O)和2-甲氧基吡啶(2-MeOPyr)引发,可以中等至极好的收率合成咪唑并[1,5- a ]嗪。发现各种取代模式和官能团在优化条件下是相容的。此外,还显示了5-溴-3-芳基衍生物在Sonogashira交叉偶联和直接芳基化反应中具有活性。叔酰胺与底物相容,可合成三氟甲磺酸咪唑并[1,5- a ]吡啶鎓。
A novel approach for the synthesis of imidazo and triazolopyridines from dithioesters
作者:Ajjahalli B. Ramesha、Nagarakere C. Sandhya、Chottanahalli S. Pavan Kumar、Mahanthawamy Hiremath、Kempegowda Mantelingu、Kanchugarakoppal S. Rangappa
DOI:10.1039/c6nj01038e
日期:——
Various imidazo- and triazolo-pyridines were synthesised by the intramolecular cyclization of pyridine 2-methylamine and dithioesters under mild conditions.
通过在温和条件下进行吡啶-2-甲胺和二硫酯的分子内环化,合成了各种咪唑和三唑吡啶。
Design of Inhibitors of Photosystem II using a Model of the D1 Protein
作者:Ursula Egner、Klaus Peter Gerbling、Georg-Alexander Hoyer、Gabriele Krüger、Peter Wegner
Triflic Anhydride Mediated Synthesis of Imidazo[1,5-<i>a</i>]azines
作者:Guillaume Pelletier、André B. Charette
DOI:10.1021/ol400870b
日期:2013.5.3
Imidazo[1,5-a]azines are synthesized in moderate to excellent yields using a mild cyclodehydration/aromatization reaction triggered by the use of triflic anhydride (Tf2O) and 2-methoxypyridine (2-MeOPyr). Various substitution patterns and functional groups were found to be compatible under the optimized conditions. In addition, a 5-bromo-3-aryl derivative was also shown to be active in a Sonogashira
使用温和的环脱水/芳香化反应,通过使用三氟甲磺酸酐(Tf 2 O)和2-甲氧基吡啶(2-MeOPyr)引发,可以中等至极好的收率合成咪唑并[1,5- a ]嗪。发现各种取代模式和官能团在优化条件下是相容的。此外,还显示了5-溴-3-芳基衍生物在Sonogashira交叉偶联和直接芳基化反应中具有活性。叔酰胺与底物相容,可合成三氟甲磺酸咪唑并[1,5- a ]吡啶鎓。