826-65-3Relevant articles and documents
Thermal Cyclisation Reactions of Vinylogous Aminomethylene Meldrum's Acid Derivatives
McNab, Hamish,Monahan, Lilian C.,Gray, Thomas
, p. 140 - 141 (2007/10/02)
Flash vacuum pyrolysis of vinylogous aminomethylene derivatives of Meldrum's acid leads to new cyclisation reactions; one additional double bond results in the formation of 1H-azepin-3(2H)-ones, while two additional double bonds lead to benzamide derivatives.
ON CYCLOPENTADIENONE-KETALS AND THEIR DIMERS. A NOVEL REARRANGEMENT OF α,β-UNSATURATED KETONE DIALKYL KETALS
Abramson, Sarah,Zizuashvili, Jakov,Fuchs, Benzion
, p. 2351 - 2354 (2007/10/02)
The dimers (2a and b) of dimethyl- and diethylcyclopentadienone ketals (1a and b) undergo a novel 1,3-alkoxy-rearrangement to 4(a and b). Mild hydrolysis of 2 or 3 gives the monoketones (3a or b).On strong acid catalysed hydrolysis 2, 3 or 4 afford the cyclopentadienone-dimer (6)