2098-52-4Relevant academic research and scientific papers
Synthesis of a novel class of steroidal tetrazolo[1,5-a]pyridines via intramolecular 1,3-dipolar cycloadditions
Gogoi, Junali,Bezbaruah, Pranjal,Saikia, Pallabi,Goswami, Jonalee,Gogoi, Pranjal,Boruah, Romesh Chandra
scheme or table, p. 1497 - 1500 (2012/03/27)
A facile synthesis of a novel class of steroidal A/B/D-ring annulated tetrazolo[1,5-a]pyridine derivatives has been accomplished via intramolecular 1,3-dipolar cycloaddition reaction of azide with nitrile in aprotic solvent. The synthesis of D-ring annulated tetrazolo[1,5-a]pyridine in alcohol showed incorporation of an alcohol molecule into the heterocyclic system.
Steroid transformations with Fusarium oxysporum var. cubense and Colletotrichum musae
Wilson, Maureen R.,Gallimore, Winklet A.,Reese, Paul B.
, p. 834 - 843 (2007/10/03)
The utility of two locally isolated fungi, pathogenic to banana, for steroid biotransformation has been studied. The deuteromycetes Fusarium oxysporum var. cubense (IMI 326069, UAMH 9013) and Colletotrichum musae (IMI 374528, UAMH 8929) had not been examined previously for this potential. In general, F. oxysporum var. cubense effected 7α hydroxylation on 3β-hydroxy- Δ5-steroids, 6β, 12β, and 15α hydroxylation on steroidal-4-ene-3-ones, side-chain degradation on 17α,21-dihydroxypregnene-3,20-diones, and 15α hydroxylation on estrone. Both strains were shown to perform redox reactions on alcohols and ketones.
The Chemistry of Aryllead(IV) Tricarboxylates. Reaction with Enamines
May, George L.,Pinhey, John T.
, p. 1859 - 1871 (2007/10/02)
The treatment of 1-morhpholinocyclopentene (1a) with p-methoxyphenyllead triacetate (2a) in chloroform provides a simple high-yielding route to 2-(4-methoxyphenyl)cyclopentanone (3a).This arylation reaction of enamines has been investigated with a variety of substrates and a number of aryllead triacetates.The reaction has been found to be very sensitive to steric effects and is thus a useful synthetic method in a relatively small number of cases.Acetoxylation is a major competing reaction with those enamines of cyclic ketones which give a low to moderate yield of arylated product.
