An unexpected Pummerer rearrangement in the synthetic route to ethyl (2′-hydroxy-4′,5′-methylenedioxyphenyl)acetate: An alternative approach to 2,3-dimethylthio benzofurans
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This work was supported by Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México (Project PAPIIT IG200318), and by Consejo Nacional de Ciencia y Tecnología (México) with a fellowship (225545) awarded to A.C.-M.
Acknowledgments
The authors thank to Programa de Maestría y Doctorado en Ciencias Químicas de la Universidad Nacional Autónoma de México, and also acknowledge Ángeles Peña, Elizabeth Huerta, Beatriz Quiroz, Rocío Patiño, Carmen García González, Héctor Ríos, Luis Velasco, and Javier Pérez (Instituto de Química, UNAM), for technical assistance.
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