NOPR Collection:

Neo coramandaline, a pyrrolizidine alkaloid from Cynoglossum furcatum

Sat, 01 Jan 2000 00:00:00 GMT

Title: Neo coramandaline, a pyrrolizidine alkaloid from Cynoglossum furcatum Authors: Ravi, S; Lakshmanan, A J Abstract: The pyrrolizidine alkaloids of Cynoglossum furcatum have been isolated and characterised. They are neo coramandaline 1, a new pyrrolizidine ester alkaloid and echinatine 3. Neo coramandaline is formulated as 9-O-(-)viridifloryl laburnine on the basis of spectroscopic measurements and hydrolysis. Page(s): 80-82

Synthesis of new substituted sulfonylhydrazinecarboxamides and sulfonylhydrazine carbothioamides having antifungal and antibacterial activities

Sat, 01 Jan 2000 00:00:00 GMT

Title: Synthesis of new substituted sulfonylhydrazinecarboxamides and sulfonylhydrazine carbothioamides having antifungal and antibacterial activities Authors: Nalavde, Yogesh Madhukar; Joshi, Vidya Abstract: p-Toluenesulfonylhydrazide 3 on condensation with substituted phenyl isocyanates 2a-i and substituted phenyl isothiocyanates 2j-p gives N,2-disubstituted sulfonylhydrazinecarboxamides 4a-i and N, 2-disubstituted sulfonylhydrazinecarbothioamides 4j-p respectively. Compounds 4a-p have been found to be bactericidal against S. aureus and S. typhi while compound 4n shows fungicidal activity against T. mentagrophytes and T.rubrum. Page(s): 76-79

Oxidative transformation of alcohols and oximes to carbonyl compounds by quinolinium fluorochromate (QFC)

Sat, 01 Jan 2000 00:00:00 GMT

Title: Oxidative transformation of alcohols and oximes to carbonyl compounds by quinolinium fluorochromate (QFC) Authors: Rajkumar, G Abraham; Arabindoo, Banumathi; Murugesan, V Abstract: Oxidation of selected alcohols and oximes to the corresponding carbonyl compounds has been achieved with quinolinium fluorochromate (QFC) in dichloromethane solvent under reflux conditions. The oxidation reactions have been found to be smooth and gave the products in good yield. Page(s): 74-75

Liquid phase oxidation of saturated nitrogen-containing heterocyclics over modified MCM-41 molecular sieves⁺

Sat, 01 Jan 2000 00:00:00 GMT

Title: Liquid phase oxidation of saturated nitrogen-containing heterocyclics over modified MCM-41 molecular sieves⁺ Authors: Chandrakala, M; Murthy, K V V S B S R; Kulkarni, S J; Raghavan, K V Abstract: For the first time, the liquid phase oxidation reactions of saturated N-heterocyclics like piperidine and pyrrolidine to piperidone and pyrrolidone have been carried out over modified MCM-41 molecular sieves with 30-55% yield and >80% selectivity. Page(s): 71-73

NOPR Collection:

Neo coramandaline, a pyrrolizidine alkaloid from Cynoglossum furcatum

Synthesis of new substituted sulfonylhydrazinecarboxamides and sulfonylhydrazine carbothioamides having antifungal and antibacterial activities

Oxidative transformation of alcohols and oximes to carbonyl compounds by quinolinium fluorochromate (QFC)

Liquid phase oxidation of saturated nitrogen-containing heterocyclics over modified MCM-41 molecular sieves+

Liquid phase oxidation of saturated nitrogen-containing heterocyclics over modified MCM-41 molecular sieves⁺