4044-54-6Relevant academic research and scientific papers
Synthesis based on Cyclohexadienes. Part-271. Synthesis of Functionalized Tricyclo[5.2.2.01,5]undecanes
Subba Rao,Hariprakasha,Girija,Vijaya Bhaskar
, p. 961 - 969 (2007/10/03)
A new methodology for the construction of tricyclo[5.2.2.01,5]undecanes is described from indane-4-carboxylic acids. Birch reduction of indane-4-carboxylic acids followed by conjugation and cycloaddition with α-ehloroacrylonitrile and hydrolysi
Photochemically generated bicyclic ortho-quinodimethanes: Photo- enolization of bicyclic aldehydes and ketones
Connolly, Terrence J.,Durst, Tony
, p. 15969 - 15982 (2007/10/03)
A photoenolization route to bicyclic ortho-quinodimethanes was investigated. Bicyclic photoenols were trapped in an intermolecular fashion with various dienophiles for the first time. All ortho-quinodimethane precursors were prepared via a selective route commencing with 1-indanol, α- tetralol and 1-benzosuberone. Irradiation afforded the E-photoenols exclusively which were trapped with equal efficiency except that derived from indane-4-carboxaldehyde. This low efficiency has been ascribed to rapid auto- oxidation of the aldehyde to carboxylic acid. The facial selectivity of the reaction between the photoenol from benzosuberan-9-carboxaldehyde and dimethyl fumarate was much lower when compared to the other aldehydes in this study. A distorted diene caused by the presence of the seven membered ring explains these results.
Aromatic Spiranes, XXII [1]: Preparation of Cyclopenteno-4,5-indan-1-one and 2-Carbomethoxy- and 4-Chloromethyl-indane as Synthones for the Syntheses of Anellated 2,2′-Spirobiindanone
Melmer,Neudeck
, p. 275 - 290 (2007/10/03)
The title compounds were prepared as follows: tert.-butyl-indane (10) was formylated to give a 72:28 mixture of the aldehydes 23a and 23b which were submitted to a Knoevenagel-Doebner condensation to afford the cinnamonic acids 24. From the mixture, the p
