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Paper | Regular issue | Vol 45, No. 1, 1997, pp.129-136
Published online, 1st January, 1970
DOI: 10.3987/COM-96-7648
Selective Synthesis of 2-Substituted Indazolin-3-ones without N-1 Protection

Vicente J. Arán, Enrique Díez-Barra,* Antonio de la Hoz, and Prado Sánchez-Verdú

*Facultad de Quimica, Universidad de Castilla-La Mancha, Campus Universitario, 13071 Ciudad Real, Spain


N-2-Alkylation of indazolin-3-ones was performed in neutral conditions. This method represents a direct and efficient entry to a class of compounds having interesting biological activities, avoiding the generally required N-1 protection.