Synlett 2007(4): 0527-0537  
DOI: 10.1055/s-2007-967983
ACCOUNT
© Georg Thieme Verlag Stuttgart · New York

N-(2-Iodylphenyl)acylamides - New Pentavalent Iodine Oxidizing Reagents

Uladzimir Ladziata, Viktor V. Zhdankin*
Department of Chemistry and Biochemistry, University of Minnesota Duluth, Duluth, Minnesota 55812, USA
Fax: +1(218)7267394; e-Mail: vzhdanki@d.umn.edu;
Further Information

Publication History

Received 6 August 2006
Publication Date:
21 February 2007 (online)

Abstract

This account describes design and synthetic utilization of new iodine(V) oxidizing reagents, N-(2-iodylphenyl)acylamides (NIPAs). NIPA reagents are soluble and stable pseudo-cyclic IBX analogues that are able to selectively oxidize either alcohols or sulfides, with the reactivity depending largely on the substitution pattern on the amido group adjacent to the iodyl moiety. A recyclable polymer-supported version of NIPA (NIPA resin) can conveniently be prepared in three simple steps. NIPA resin can effect smooth and efficient oxidation of a large variety of alcohols to the respective carbonyl compounds. Proline-based NIPA derivatives are promising chiral oxidants based on a pseudo-benziodoxazine scaffold.

1 Introduction

2 Synthesis, Structure and Chemoselective Reactivity of N-(2-Iodylphenyl)acylamides (NIPAs)

2.1 Design, Preparation and Structure of NIPAs

2.2 Chemoselective Reactivity of NIPAs: Oxidation of ­Alcohols and Sulfides

3 Investigations toward Chiral NIPA Reagents

4 Polymer-Supported N-(2-Iodylphenyl)acylamide (NIPA Resin)

5 Conclusion and Outlook

6

Atlantic SciTech Product Catalog, 11 April 2006.