61093-48-9Relevant academic research and scientific papers
Syntheses of Tetraoxaquaterene Derivatives
Tanaka, Sanae,Tomokuni, Hidehiko
, p. 991 - 994 (2007/10/02)
Several new dimethyl and tetramethyl tetraoxaquaterenes, 3d and 3e, have been prepared in order to synthesize the oxygen analogues of porphyrin.The reaction between furan and a ketone using an acidic catalyst gave the cyclic tetramer, tetraquaterene, and oligomers.On the other hand, in the case of furan and the aldehyde, only linear oligomers were isolated.The condensation of furan-containing dimers with carbonyl compounds, both ketone and aldehyde, except formaldehyde, gave the tetraoxaquaterene.In the case of formaldehyde, the yield of cyclic tetramer was neglijable.
