The Reaction of 3,6-di-tert-butyl-o-benzoquinone with tin amalgam: Synthesis and structure of tin catecholato complexes

✍ Scribed by Alexandr V. Piskunov; Aryna V. Lado; Georgy K. Fukin; Evgeny V. Baranov; Ludmila G. Abakumova; Vladimir K. Cherkasov; Gleb A. Abakumov

• Publisher: John Wiley and Sons
• Year: 2006
• Tongue: English
• Weight: 276 KB
• Volume: 17
• Category: Article
• ISSN: 1042-7163
• DOI: 10.1002/hc.20271

✦ Synopsis

Abstract

The reduction of 3,6‐di‐tert‐butyl‐o‐benzoquinone with tin amalgam gives the different tin catecholate complexes. The use of polar solvents for this reaction leads to the formation of Cat~2~Sn · L~2~ species (where Cat—dianion of 3,6‐di‐tert‐butylcatechol, L = Et~2~O, THF, Py). The reaction carried out in toluene produces the mixture of dicatecholate tin(IV) and catecholate tin(II) derivatives. The complex Cat~2~Sn · (Et~2~O)~2~ was shown to be a good starting reagent for the preparation of different tin(IV) catecholate complexes of the type Cat~2~Sn ·  L′ (L′ = 1,2‐dimethoxyethane, 1,4‐di‐tert‐butyldiazadiene‐1,3, o‐phenantrolyne, α,α′‐dipyridyl) using ligand exchange reactions. Compounds Cat~2~Sn · (Et~2~O)~2~, Cat~2~Sn · (THF)~2~, Cat~2~Sn · (Bu^t^NCHCHNBu^t^), and (CatSn)~3~ have been crystallographically characterized. © 2006 Wiley Periodicals, Inc. Heteroatom Chem 17:481–490, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20271