Scannell, Ralph T.; Stevenson, Robert, Journal of the Chemical Society. Perkin transactions I, 1983, # 12, p. 2927 - 2932
作者:Scannell, Ralph T.、Stevenson, Robert
DOI:——
日期:——
Synthesis of new dibenzofuran derivatives via Diels–Alder reaction of euparin with activated acetylenic esters
作者:Parvaneh Dastoorani、Malek Taher Maghsoodlou、Mohammad A. Khalilzadeh、Evan Sarina
DOI:10.1016/j.tetlet.2015.12.021
日期:2016.1
An efficient synthesis of novel dibenzofuran derivatives has been achieved via the Diels–Alder reaction of 1-(6-hydroxy-2-isopropenyl-1-benzofuran-yl)-1-ethanone, named euparin, with acetylenic diesters and propiolates in the presence of triphenylphosphine as a catalyst in toluene. All products were obtained by recrystallization from ethanol and did not require column chromatography.