9 research outputs found

    Synthesis of α-amino phosphonates catalyzed by bifunctional cyclohexane derived thiourea organocatalyst

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    183-191Multicomponent phosphonylation is accomplished by convenient and efficient synthetic method using novel (S)-N- ((cyclohexylmethyl) carbamothioyl) pyrrolidine-2-carboxamide (NCCPC) as bifunctional cyclohexane derived thiourea organocatalyst upon the reaction of an amine, substituted aldehyde with diethyl phosphite. This method not only provides novel and excellent complement for the synthesis but also gives green and transition-metal-free protocol, shows a broad substrate scope, providing a variety of α-amino phosphonates in moderate to good yields

    Ru(II)/PEG-400: A green synthesis of indolyl-oxindoles and indolyl-cyclohexanedione hybrids as potential antimicrobial agents

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    107-114A green and sustainable methodology has been successfully employed for the synthesis of 3-Indolyl-3-hydroxy oxindoles and 3-indolyl-3-hydroxy-5,5-dimethylcyclohexane-1,3-dione derivatives using Ru(II)/PEG-400 as a homogeneous recyclable catalytic system from substituted isatin with indole and dimedone. Short reaction time, simple extraction procedure, substrate scope with high yield of the product, biodegradable solvent and recyclability of the catalyst without loss of its activity enhances the efficiency of the proposed protocol. The synthesized compounds are studied for their antimicrobial activity

    A green synthesis of isoquinolines using Ru(II)/PEG-400 as homogeneous recyclable catalyst via C-H/N-N bond activation

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    842-849A novel and green synthesis of 1-phenyl isoquinoline derivatives has been developed by using Ru(II)/PEG-400 as homogeneous recyclable catalyst via C-H/N-N bond activation via C-H/N-N functionalization of 1-(diphenylmethylene) hydrazine and aryl substituted acetylenes. In order to realize the proposed protocol, Cu(OAc)2 and AgSbF6 are used as oxidant and additive respectively in PEG-400 biodegradable solvent. This protocol has a simple extraction procedure, uses biodegradable solvent, affords high atom economy, employs a reusable catalytic system, provides wide substrate scope with high yield of product, for the synthesis of isoquinoline derivatives

    Ru(II)/PEG-400: A green synthesis of indolyl-oxindoles and indolyl-cyclohexane-dione hybrids as potential antimicrobial agents

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    A green and sustainable methodology has been successfully employed for the synthesis of 3-Indolyl-3-hydroxy oxindoles and 3-indolyl-3-hydroxy-5,5-dimethylcyclohexane-1,3-dione derivatives using Ru(II)/PEG-400 as a homogeneous recyclable catalytic system from substituted isatin with indole and dimedone. Short reaction time, simple extraction procedure, substrate scope with high yield of the product, biodegradable solvent and recyclability of the catalyst without loss of its activity enhances the efficiency of the proposed protocol. The synthesized compounds are studied for their antimicrobial activity

    A green synthesis of isoquinolines using Ru(II)/PEG-400 as homogeneous recyclable catalyst via C-H/N-N bond activation

    Get PDF
    A novel and green synthesis of 1-phenyl isoquinoline derivatives has been developed by using Ru(II)/PEG-400 as homogeneous recyclable catalyst via C-H/N-N bond activation via C-H/N-N functionalization of 1-(diphenylmethylene) hydrazine and aryl substituted acetylenes. In order to realize the proposed protocol, Cu(OAc)2 and AgSbF6 are used as oxidant and additive respectively in PEG-400 biodegradable solvent. This protocol has a simple extraction procedure, uses biodegradable solvent, affords high atom economy, employs a reusable catalytic system, provides wide substrate scope with high yield of product, for the synthesis of isoquinoline derivatives
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