Citation:KISSANE, M., LAWRENCE, S. E. & MAGUIRE, A. R. 2010. 1,3-Dipolar cycloadditions of 2-thio-3-chloroacrylamides with diazoalkanes. Organic & Biomolecular Chemistry, 8, 2735-2748. DOI: 10.1039/C002479A
2-Thio-3-chloroacrylamides undergo 1,3-dipolar cycloadditions with diazoalkanes leading to a series of novel pyrazolines and pyrazoles. The mechanistic and synthetic features of the cycloadditions to the 2-thio-3-chloroacrylamides at both the sulfide and sulfoxide levels of oxidation are rationalised on the basis of the nature of the substituents.
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