Novel Synthesis of Benzalacetone Analogues of Naphth[a]azulenes by Intramolecular Tropylium Ion-Mediated Furan Ring-Opening Reaction and X-ray Investigation of a Naphth[1,2-a]azulene Derivative was written by Yamamura, Kimiaki;Kawabata, Shizuka;Kimura, Takatomo;Eda, Kazuo;Hashimoto, Masao. And the article was included in Journal of Organic Chemistry in 2005.Computed Properties of C10H6BrI The following contents are mentioned in the article:
Benzalacetone analogs of naphth[1,2-a]azulene (I), naphth[2,1-a]azulene, and naphth[2,3-a]azulene were synthesized from 2-(5-methyl-2-furyl)-1-, 1-(5-methyl-2-furyl)-2-, and 2-(5-methyl-2-furyl)-3-tropylionaphthalene, resp. The synthetic method is based on furan ring-opening reaction by the intramol. electrophilic attack of a tropylium ion. Single-crystal X-ray work on I revealed that its tetracyclic system exhibited deformation from planarity similar to that of benzo[c]phenanthrene (tetrahelicene). A centrosym. associated dimer structure, just like the mols. of carboxylic acids but via C:O···H-C hydrogen bonds, was found in the crystal. Reduction of bond-length alternation in the seven-membered ring was also found. This study involved multiple reactions and reactants, such as 2-Bromo-1-iodonaphthalene (cas: 676267-05-3Computed Properties of C10H6BrI).
2-Bromo-1-iodonaphthalene (cas: 676267-05-3) belongs to iodide derivatives. Indole could be stereoselectively alkylated with chiral cyclopentyl sulfone reagent. In addition to indole, the strain-release chemistry worked for numerous substrates including amines, alcohols, thiols, carboxylic acids, imidazoles, and pyrazoles.Computed Properties of C10H6BrI
Referemce:
Iodide – Wikipedia,
Iodide – an overview | ScienceDirect Topics – ScienceDirect.com