Abstracto
Facile synthesis of 3-spiropyrrolizidine oxindoles and 3-spirotetrahydroquinoline oxindoles via [3+2] and [4+2] cycloaddition reactions
A.Sudhakara, H.C.Kiran Kumar, H.Jayadevappa, K.M.Mahadevan
A rapid and efficient synthesis of a number of functionalized 3- spiropyrrolizidine oxindoles from[3+2] cycloaddition of azomethine ylide and 3-spirotetrahydroquinoline oxindoles from[4+2] imino Diels-Alder reaction; catalyzed byAntimony(III)chloride in excellent yields are reported.
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