Ethyl 2-Cyano-2-(2-nitrobenzenesulfonyloxyimino)acetate (o-NosylOXY): A Recyclable Coupling Reagent for Racemization-Free Synthesis of Peptide, Amide, Hydroxamate, and Ester
Dharm Dev, Nani Babu Palakurthy, Kishore Thalluri, Jyoti Chandra and Bhubaneswar Mandal*
*Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati, Assam 781039, India, Email: bmandaliitg.ernet.in
D. Dev, N. B. Palakurthy, K. Thalluri, J. Chandra, B. Mandal, J. Org. Chem., 2014, 79, 5420-5431.
DOI: 10.1021/jo500292m (free Supporting Information)
The coupling reagent ethyl 2-cyano-2-(2-nitrobenzenesulfonyloxyimino)acetate (o-NosylOXY) produces only byproducts that can be easily recovered and reused for the synthesis of the same reagent, making coupling reactions to yield amides, hydroxamates, peptides, and esters more environmentally friendly and cost-effective.
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K. Thalluri, S. R. Manne, D. Dev, B. Mandal, J. Org. Chem., 2014, 79, 3765-3775.