<style face="normal" font="default" size="100%">Organocatalysed one-pot three component synthesis of 3,3′-disubstituted oxindoles featuring an all-carbon quaternary center and [spiro 2H-pyran-3,4′-indoline]</style>

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<style face="normal" font="default" size="100%">Organocatalysed one-pot three component synthesis of 3,3′-disubstituted oxindoles featuring an all-carbon quaternary center and [spiro 2H-pyran-3,4′-indoline]</style>

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<style face="normal" font="default" size="100%">Base controlled rongalite-mediated reductive aldol/cyclization and dimerization of isatylidene malononitriles/cyanoacetates</style>

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<style face="normal" font="default" size="100%">Organocatalyzed [4+2] cycloaddition of α,β-unsaturated ketones and isatylidene malononitrile: accessing spiro[3-arylcyclohexanone]oxindole derivatives</style>

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<style face="normal" font="default" size="100%">Conjugate addition/cyclization of propanal with isatylidene malononitriles: an efficient one-pot organocatalytic approach for the synthesis of 3′-methyl spiro[2H-pyran-3,4′-indoline]</style>

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<style face="normal" font="default" size="100%">Efficient synthesis of 3,3′-Spirooxindole γ-Butyrolactone via Rongalite-mediated domino reductive aldol and spiro-lactonization reactions</style>

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<style face="normal" font="default" size="100%">Rongalite-promoted self-dimerization of 3-acylidene-2-oxindoles: a diastereoselective route to synthesis of bispirooxindoles</style>

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<style face="normal" font="default" size="100%">Sequential nitro-michael addition and reductive cyclization cascade reaction for diastereoselective synthesis of multifunctionalized 3,3′-pyrrolidinyl-spirooxindoles</style>

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<style face="normal" font="default" size="100%">Thiophenol-mediated metal-free chemoselective conjugate reduction strategy for 3-alkylidene oxindoles</style>