名称:
A facile synthesis of 4-methylene-1,3-oxazolidines from γ-hydroxybutynoate and N-tosylimines
摘要:
Both nucleophilic and basic catalysts have been used to promote the cyclization reactions between gamma-hydroxybutynoate and N-tosylimines to afford 4-methylene-1,3-oxazolidines in good yields. E- and Z-isomers of the final products have been isolated and characterized by NMR spectroscopy and X-ray data. (C) 2009 Elsevier Ltd. All rights reserved.
DOI:
10.1016/j.tetlet.2009.06.009