Zhang, He; Cao, Tongxiang; Luo, Hejiang; Chen, Lianfen; Zhu, Shifa published an article in 2019, the title of the article was Enynone-enabled migratory insertion and Schmittel cyclization cascade for the synthesis of furan-fused fluorenes.Category: ethers-buliding-blocks And the article contains the following content:
A new method for the synthesis of furan-/benzo-fused fluorenes through copper(I)-catalyzed coupling of conjugated enynones or α-diazocarbonyl compounds with dialkynylbenzenes were developed. This process included 5-exo-dig cyclization, carbene migratory insertion, Schmittel cyclization and 1,5-H transfer. The obvious advantages of wide substrate scopes, mild reaction conditions and high atom efficiency make this system highly appealing for the construction of six-substituted benzofuran-embedded fluorenes in a one-pot manner. The experimental process involved the reaction of 2-((4-Methoxyphenyl)ethynyl)aniline(cas: 157869-15-3).Category: ethers-buliding-blocks
The Article related to propynylidene alkane dione dialkynylbenzene preparation copper tandem regioselective cyclization, carbonyl fluorenofuran preparation, diazo phenylacetate dialkynylbenzene preparation copper tandem cyclization, benzofluorene carboxylate preparation and other aspects.Category: ethers-buliding-blocks
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem