K Natarajan Jayakumar

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[reaction: see text] Design and synthesis of a novel class of dendrons based on an AB(4) monomer are described. These dendrons have been evaluated by using dendritic encapsulation of a redox active core. The electrochemical properties of symmetric ferrocene-cored dendrimers show that significant alterations in redox potential and heterogeneous(More)
[reaction: see text] The iminium ions generated in situ by the oxidation of N,N-diisopropyl-N-benzylamine using iodine react with diaryl ketones in the presence of TiCl4/R3N to give the corresponding 3,3-diarylcyclobutanones in moderate to good yields (49-86%). The 3,3-diarylcyclobutanone iminium ions formed in this transformation was reduced in situ with(More)
A controlled randomised trial has been carried out to ascertain if there are tangible benefits from using a tourniquet when avulsing varicose veins during routine varicose vein surgery. Twenty-six patients have been studied. Twenty limbs were operated on with a tourniquet and 20 limbs without a tourniquet. The mean weight of varices excised was 2.76 g(More)
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