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Medium-sized cyclophanes. Part 55. Synthesis and conformational studies of [2.1.1]orthocyclophanes

Autor: N. Sakaue, Kan Tanaka, Takehiko Yamato, Hirohisa Tsuzuki

Publikováno v: New Journal of Chemistry. 25:434-439

[2.1.1]Orthocyclophanes 2 are prepared by pyrolysis of the corresponding 2-thia[3.1.1]orthocyclophane 2,2-dioxides 9, which are prepared by the reaction of 1,2-bis(2-bromomethylbenzyl)benzenes 7 with Na2S in ethanol under high dilution conditions, fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4d550e6bc9597fb844fb53ad89b8e810
https://doi.org/10.1039/b008258i

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Selective preparation of polycyclic aromatic hydrocarbons. Part 4.1 New synthetic route to anthracenes from diphenylmethanes using Friedel–Crafts intramolecular cyclization

Autor: Naoki Shinoda, Koji Matsuo, N. Sakaue, Takehiko Yamato

Publikováno v: Journal of the Chemical Society, Perkin Transactions 1. :1193-1200

Preparation of several anthracenes from diphenylmethanes by direct Bradsher-type reaction, which incorporates formylation of a hydrocarbon followed by Friedel–Crafts intramolecular cyclization, is presented. The present method involving the action

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bca9674e209ed38b80c0797f3cf08bc2
https://doi.org/10.1039/a606205i

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