Regiodirected substitution of [2.2]paracyclophanedienes and [2.2]paracyclophanes through tricarbonylchronium complexation期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Regiodirected substitution of [2.2]paracyclophanedienes and [2.2]paracyclophanes through tricarbonylchronium complexation

Affiliation:	1. Department of Chemistry, Faculty of Science, University of Cape Town, Cape Town, South Africa;2. Faculty of Pharmacy, Division of Pharmaceutical Chemistry, Rhodes University, Makhanda, South Africa;3. Université de Lille, CNRS, UMR 8576—UGSF—Unité de Glycobiologie Structurale et Fonctionnelle, Lille, France;1. Department of Molecular Biology, Shanghai Jiao Tong University Affiliated Sixth People''s Hospital, 600 Yishan Road, Shanghai 200233, PR China;2. Department of Breast Surgery, Shanghai Jiao Tong University Affiliated Sixth People''s Hospital, 600 Yishan Road, Shanghai 200233, PR China;3. Department of Molecular Biology and Clinical Laboratory, Shanghai Jiao Tong University Affiliated Sixth People''s Hospital, 600 Yishan Road, Shanghai 200233, PR China

Abstract:	4,7-dialkoxy[2.2]paracyclophanes and the corresponding 1,9-dienes are shown to undergo selective conplexation with Cr(CO)₃L₃-reagent on their less substituted benzene moiety. Lithiation/silytion of these complexes leads to arene- or bridge-substitution, respectively. An analagous behaviour is observed for the tricarbonylchromium[2.2]paracyclophane and its 1,9-diene.

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