Accepted Manuscript Repurposing n-butyl stannoic acid as highly efficient catalyst for direct amida- tion of carboxylic acids with amines Santoshkumar M. Potadar, Anil S. Mali, Krishnakant T. Waghmode, Ganesh U. Chaturbhuj PII: S0040-4039(18)31364-9 DOI: https://doi.org/10.1016/j.tetlet.2018.11.036 Reference: TETL 50421 To appear in: Tetrahedron Letters Received Date: 4 July 2018 Revised Date: 7 November 2018 Accepted Date: 11 November 2018 Please cite this article as: Potadar, S.M., Mali, A.S., Waghmode, K.T., Chaturbhuj, G.U., Repurposing n-butyl stannoic acid as highly efficient catalyst for direct amidation of carboxylic acids with amines, Tetrahedron Letters (2018), doi: https://doi.org/10.1016/j.tetlet.2018.11.036 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.