Publisher: John Wiley & Sons Inc
E-ISSN: 1521-3773|54|22|6576-6581
ISSN: 1433-7851
Source: ANGEWANDTE CHEMIE INTERNATIONAL EDITION, Vol.54, Iss.22, 2015-05, pp. : 6576-6581
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
AbstractA simple method for the functionalization of closo‐borates [closo‐B10H10]2− (1), [closo‐1‐CB9H10]− (2), [closo‐B12H12]2− (3), [closo‐1‐CB11H12]− (4), and [3,3′‐Co(1,2‐C2B9H11)2]− (5) is described. Treatment of the anions and their derivatives with ArI(OAc)2 gave aryliodonium zwitterions, which were sufficiently stable for chromatographic purification. The reactions of these zwitterions with nucleophiles provided facile access to pyridinium, sulfonium, thiol, carbonitrile, acetoxy, and amino derivatives. The synthetic results are augmented by mechanistic considerations.
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