Practical synthesis of 1,4-dioxane derivative of the <em>closo</em>-dodecaborate anion and its ring opening with acetylenic alkoxides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

*Practical synthesis of 1,4-dioxane derivative of the closo-dodecaborate anion and its ring opening with acetylenic alkoxides*

Authors:	Igor B. Sivaev Nadezhda Yu. Kulikova Maxim V. Vichuzhanin Zoya A. Starikova Vladimir I. Bregadze

Affiliation:	^a A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov Street 28, 119991 Moscow, Russia ^b Higher Chemical College of the Russian Academy of Sciences, Miusskaya Square 9, 125047 Moscow, Russia

Abstract:	Practical method of synthesis of the 1,4-dioxane derivative of the closo-dodecaborate anion was developed. The cleavage of the dioxonium ring in [B₁₂H₁₁O(CH₂CH₂)₂O]⁻ with acetylenic alcohols gave rise to the preparation of closo-dodecaborate derivatives with terminal acetylene group. These compounds can be introduced into click reactions with phenylazide leading to the corresponding triazoles. The structures of (Bu₄N)[B₁₂H₁₁O(CH₂CH₂)₂O] and (Bu₄N)₂[B₁₂H₁₁(OCH₂CH₂)₂OCH₂CCH] · 0.5HOCH₂CCH were determined by single-crystal X-ray diffraction.

Keywords:	closo-Dodecaborate 1,4-Dioxane derivative Terminal acetylenes Triazoles Synthesis X-ray structure
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