826-65-3Relevant academic research and scientific papers
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.
REACTION OF DICOBALT OCTACARBONYL WITH ACETYLENE AND CARBON MONOXIDE AT LOW TEMPERATURE AND PRESSURE: FORMATION OF CYCLIC ENONE PRODUCTS
Schore, N. E.,Belle, B. E. la,Knudsen, M. J.,Hope, H.,Xu, X-J.
, p. 435 - 446 (2007/10/02)
Dicobalt octacarbonyl is shown to react with acetylene and carbon monoxide under mild conditions in dimethoxyethane or benzene to produce, in low yields, bicycloocta-3,7-diene-2,6-dione, benzoquinone, and the cyclopentadienone-derived products 3a,4,7,7a-tetrahydro-2,7-methanoindene-1,10-dione, 1-indanone, tetracyclo2,608,12>tetradeca-4,10,13-triene-3,9-dione, and tetracyclo2,608,12>tetradeca-4,9,13-triene-3,11-dione. Possible mechanisms for the formation of these products are discussed.
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)
