Thionation of Some alpha,beta-Unsaturated Steroidal Ketones
Apstrakt
The reactions of selected alpha,beta-unsaturated steroidal ketones with Lawesson's reagent (LR) in CH(2)Cl(2) and toluene under the standard reaction conditions and with a combination of phosphorus pentasulfide with hexamethyldisiloxane (P(4)S(10)/HMDO) in 1,2-dichlorobenzene (ODCB) under microwave irradiation were investigated and for this purpose several cholestane, androstane and pregnane carbonyl derivatives were chosen. Depending on the reagent and the solvent, 19 new sulfur containing compounds, including dithiones 4c and 4d, alpha,beta-unsaturated 3-thiones 3a-e, dimer-sulfides 2a-e, 1,2,4-trithiolanes 5a-e and phosphonotrithioates 6b-e were synthesized. All newly prepared compounds were characterized by IR, (1)H- and (13)C-NMR spectroscopy and elemental analysis.
Ključne reči:
alpha,beta-unsaturated steroidal ketones / alpha,beta-unsaturated 3-thiones / Lawesson's reagent / P(4)S(10)/HMDO / dimerization / microwave irradiationIzvor:
Molecules, 2010, 15, 5, 3462-3477Izdavač:
- MDPI
Finansiranje / projekti:
DOI: 10.3390/molecules15053462
ISSN: 1420-3049
PubMed: 20657494
WoS: 000278105400039
Scopus: 2-s2.0-77952859278
Institucija/grupa
IHTMTY - JOUR AU - Krstić, Natalija AU - Bjelaković, Mira AU - Dabović, Milan AU - Pavlović, Vladimir D. PY - 2010 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/629 AB - The reactions of selected alpha,beta-unsaturated steroidal ketones with Lawesson's reagent (LR) in CH(2)Cl(2) and toluene under the standard reaction conditions and with a combination of phosphorus pentasulfide with hexamethyldisiloxane (P(4)S(10)/HMDO) in 1,2-dichlorobenzene (ODCB) under microwave irradiation were investigated and for this purpose several cholestane, androstane and pregnane carbonyl derivatives were chosen. Depending on the reagent and the solvent, 19 new sulfur containing compounds, including dithiones 4c and 4d, alpha,beta-unsaturated 3-thiones 3a-e, dimer-sulfides 2a-e, 1,2,4-trithiolanes 5a-e and phosphonotrithioates 6b-e were synthesized. All newly prepared compounds were characterized by IR, (1)H- and (13)C-NMR spectroscopy and elemental analysis. PB - MDPI T2 - Molecules T1 - Thionation of Some alpha,beta-Unsaturated Steroidal Ketones VL - 15 IS - 5 SP - 3462 EP - 3477 DO - 10.3390/molecules15053462 ER -
@article{ author = "Krstić, Natalija and Bjelaković, Mira and Dabović, Milan and Pavlović, Vladimir D.", year = "2010", abstract = "The reactions of selected alpha,beta-unsaturated steroidal ketones with Lawesson's reagent (LR) in CH(2)Cl(2) and toluene under the standard reaction conditions and with a combination of phosphorus pentasulfide with hexamethyldisiloxane (P(4)S(10)/HMDO) in 1,2-dichlorobenzene (ODCB) under microwave irradiation were investigated and for this purpose several cholestane, androstane and pregnane carbonyl derivatives were chosen. Depending on the reagent and the solvent, 19 new sulfur containing compounds, including dithiones 4c and 4d, alpha,beta-unsaturated 3-thiones 3a-e, dimer-sulfides 2a-e, 1,2,4-trithiolanes 5a-e and phosphonotrithioates 6b-e were synthesized. All newly prepared compounds were characterized by IR, (1)H- and (13)C-NMR spectroscopy and elemental analysis.", publisher = "MDPI", journal = "Molecules", title = "Thionation of Some alpha,beta-Unsaturated Steroidal Ketones", volume = "15", number = "5", pages = "3462-3477", doi = "10.3390/molecules15053462" }
Krstić, N., Bjelaković, M., Dabović, M.,& Pavlović, V. D.. (2010). Thionation of Some alpha,beta-Unsaturated Steroidal Ketones. in Molecules MDPI., 15(5), 3462-3477. https://doi.org/10.3390/molecules15053462
Krstić N, Bjelaković M, Dabović M, Pavlović VD. Thionation of Some alpha,beta-Unsaturated Steroidal Ketones. in Molecules. 2010;15(5):3462-3477. doi:10.3390/molecules15053462 .
Krstić, Natalija, Bjelaković, Mira, Dabović, Milan, Pavlović, Vladimir D., "Thionation of Some alpha,beta-Unsaturated Steroidal Ketones" in Molecules, 15, no. 5 (2010):3462-3477, https://doi.org/10.3390/molecules15053462 . .