Tetrahedron letters

The synthesis of bromo and iodo trifunctionalised tribenzosilatranes

R Alvarez, GH Mehl

Index: Alvarez, Ruben; Mehl, Georg H. Tetrahedron Letters, 2005 , vol. 46, # 1 p. 67 - 68

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Citation Number: 4

Abstract

In this report we present a direct synthesis of bromo and iodo trisubstituted tribenzosilatranes. Commercially available o-anisidine was transformed into the triarylamine in a two-step sequence, which was halogenated to furnish the tribromo or the triiodo substituted triamines, respectively. Subsequent deprotection of the methyl ethers furnished the novel tripod ligands and. A transilylation reaction in the last step led to the synthesis of ...