NOPR Collection:

Flavonoid glycoside from Leucas lavandulaefolia (Rees) aerial parts

2009-11-18T16:30:30Z

Title: Flavonoid glycoside from Leucas lavandulaefolia (Rees) aerial parts Authors: Chandrashekar, K S; Arun, B J; Satyanarayana, D; Subramanyam, E V S Abstract: Chrysoeriol-4'-O--L-rhamnopyranosyl (1→2) -D-galactopyranosyl (1→6) -D-glucopyranoside has been isolated from Leucas lavandulaefolia Rees aerial parts and its structure has been determined by UV-Vis, IR, ¹H and ¹³C NMR and mass spectroscopic methods. Page(s): 1968-1969

Synthesis and microbiological evaluation of 2-acetanilido-4-arylthiazole derivatives

2009-11-24T16:30:22Z

Title: Synthesis and microbiological evaluation of 2-acetanilido-4-arylthiazole derivatives Authors: Pattan, S R; Ali, M Shamrez; Pattan, J S; Purohit, S S; Reddy, V V K; Nataraj, B R Abstract: A series of compounds have been synthesized by reacting 2-amino 4-arylthiazole with different substituted acetanilides and chloroacetylation of 2-amino 4-arylthiazole or their substituted derivatives. Ten different substituted compounds synthesized out of the 2-acetanilido 4-arylthiazole derivatives and 2-pyrazine 4-arylthiazole have been evaluated for the antifungal and antibacterial activities. These compounds have showed moderate antibacterial and very good activity. Page(s): 1929-1932

A new route to the synthesis of long-chain methyl -chlorooxoalkanoates

2009-11-20T16:30:26Z

Title: A new route to the synthesis of long-chain methyl -chlorooxoalkanoates Authors: Rauf, Abdul; Ahmad, Shabana Abstract: A reaction of long-chain methyl epoxyalkanoates with chlorotrimethylsilane in presence of triethylamine followed by Jones′ oxidation has resulted in the formation of respective chlorooxo derivatives. The reaction proceeds under mild conditions and in a short span of time. Thus, one pot synthesis of methyl chlorooxoalkanoates is assisted with high purity and good yield of the products. The pure products are characterized by IR, ¹H NMR, ¹³C NMR and MS spectra. Page(s): 1924-1928

Synthesis of model compounds for the investigation of biomarker’s thermal behaviour

2009-11-18T16:30:34Z

Title: Synthesis of model compounds for the investigation of biomarker’s thermal behaviour Authors: Sirkecioğlu, Okan; Karlığa, Bekir; Talınlı, Naciye; Snape, Colin Abstract: The model compounds, which are used to investigate the organic structure and thermal behaviour of fossil fuels, have been synthesized starting from 4-hydroxybenzyl thiocholesterol, 4-hydroxybenzyl cholesterol and 4-hydroxybenzyl cholestanol. Page(s): 1894-1899