Abstract: The present invention relates to a novel method for photocatalytic oxidation of allylic C—H bonds present in alkenes containing at least three carbon atoms. In this newly disclosed method, such alkenes, when reacted with carbon dioxide (CO2) in an organic solvent containing a catalyst comprising of a supported molecular complex of transition metal ions under conditions of ambient temperature and pressure using a readily available household LED lamp, yield oxygenated products. The developed method represents a unique way to use CO2 as an oxygen transfer agent to unsaturated organic compounds along with the formation of CO as a co-product using light as an energy source.

Abstract: The present invention discloses a photocatalytic process and methodology for the preparation of acetic acid by a hydrocarboxylation reaction of methanol using carbon dioxide under visible light irradiation. Importantly, the reaction occurred under ambient temperature and pressure condition using a readily available household LED lamp in the presence of a transition metal based molecular photocatalyst, homogeneous as well as supported to semiconductor support and a CO2-philic solvent without adding any external electron and proton donors.

Abstract: Method for visible-light driven oxidation of aldehydes to carboxylic acid using carbon dioxide (CO2) as the oxidant in the absence of any catalyst are provided. In the disclosed process, aldehydes, when reacted with CO2 in an organic solvent, either in a batch reactor or in a continuous flow reactor, under conditions of ambient temperature and pressure, using a readily available household LED lamp, yield corresponding carboxylic acids along with the formation of carbon monoxide (CO) in the effluent gas.

Abstract: The present invention relates to a novel method for photocatalytic oxidation of allylic C—H bonds present in alkenes containing at least three carbon atoms. In this newly disclosed method, such alkenes, when reacted with carbon dioxide (CO2) in an organic solvent containing a catalyst comprising of a supported molecular complex of transition metal ions under conditions of ambient temperature and pressure using a readily available household LED lamp, yield oxygenated products. The developed method represents a unique way to use CO2 as an oxygen transfer agent to unsaturated organic compounds along with the formation of CO as a co-product using light as an energy source.

Abstract: This invention relates to an improved process for the selective production of N-methyl pyrrolidone (NMP) from gamma-butyrolactone and monomethyl amine preferably in aqueous form in the presence of a catalyst under comparatively milder conditions than the processes well known in the prior art of literature. The process is economically viable as it provides higher yield and selectivity for NMP which reduces the cost of separation of NMP from GBL. The catalyst shows good recyclability without significant loss in catalytic activity and no frequent regeneration is required.

Abstract: This invention relates to an improved process for the selective production of N-methyl pyrrolidone (NMP) from gamma-butyrolactone and monomethyl amine preferably in aqueous form in the presence of a catalyst under comparatively milder conditions than the processes well known in the prior art of literature. The process is economically viable as it provides higher yield and selectivity for NMP which reduces the cost of separation of NMP from GBL. The catalyst shows good recyclability without significant loss in catalytic activity and no frequent regeneration is required.

Abstract: The present invention relates to an improved process for the selective alkylation of phenols by reacting it with methyl tertiary butyl ether (MTBE) using polymer supported carbon composite acidic catalyst under mild to moderate conditions at atmospheric pressure. The process is economically viable since the catalyst regenerated after the initial reaction on further use gives the para tertiary butyl phenol (PTBP) in high yield.

Abstract: The present invention relates to a process for microwave assisted synthesis of N-methyl pyrrolidone (NMP). Particularly the process relates to the synthesis of N-methyl succinimide or corresponding analogs by using microwave irradiation which on hydrogenation in the presence of a hydrogenating catalyst gives N-methyl pyrrolidone. Compared to the conventional heating microwave process requires less energy inputs and reduces the reaction time drastically from 5-6 h to 2-5 min.

Abstract: The present invention relates to a process for microwave assisted synthesis of N-methyl pyrrolidone (NMP). Particularly the process relates to the synthesis of N-methyl succinimide or corresponding analogues by using microwave irradiation which on hydrogenation in the presence of a hydrogenating catalyst gives N-methyl pyrrolidone. Compared to the conventional heating microwave process requires less energy inputs and reduces the reaction time drastically from 5-6 h to 2-5 min.

Abstract: The present invention provides a process for direct hydroxylation of aromatic hydrocarbons like benzene to phenol, toluene to cresols and anisole to methoxy phenols by using hydrogen peroxide as environmentally benign oxidant in polar solvent like acetonitrile using vanadium phthalocyanine or its derivative as a catalyst, at a temperature in the range of 25-100° C.

Abstract: The present invention provides a process for direct hydroxylation of aromatic hydrocarbons like benzene to phenol, toluene to cresols and anisole to methoxy phenols by using hydrogen peroxide as environmentally benign oxidant in polar solvent like acetonitrile using vanadium phthalocyanine or its derivative as a catalyst, at a temperature in the range of 25-100° C.