Non-sensitized photooxygenation of some steroidal isoxazolidines
Samo za registrovane korisnike
1991
Članak u časopisu (Objavljena verzija)
,
Elsevier
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
UV irradiation of the steroidal isoxazolidines 2a, 2b, and 2c in various solvents in the presence of molecular oxygen, results in oxidative cleavage of the epoxyimino bridge to give several products; the N-unsubstituted isoxazolidine 2a afforded the nitro products 3, 4, and 5 and the azoxy compounds 6 and 7, while the N-methyl and N-acetyl derivatives 2b and 2c produced only the nitro compounds 3 and 5 as sole identifiable material. An explanation of the observed photooxygenation processes involving exciplex formation followed by proton transfer from isaxazolidine to molecular oxygen is presented. © 1991.
Ključne reči:
Isoxamlidines / Triplet Oxygen / Photooxygenation / Exciplex / SteroidsIzvor:
Tetrahedron, 1991, 47, 32, 6389-6398Izdavač:
- Pergamon press
Finansiranje / projekti:
- Serbian Academy of Sciences and Arts
- Serbian Republic Research Fund
Institucija/grupa
IHTMTY - JOUR AU - Lorenc, Ljubinka AU - Juranić, Ivan AU - Dabović, Milan AU - Mihailović, Milhailo Lj. PY - 1991 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/2698 AB - UV irradiation of the steroidal isoxazolidines 2a, 2b, and 2c in various solvents in the presence of molecular oxygen, results in oxidative cleavage of the epoxyimino bridge to give several products; the N-unsubstituted isoxazolidine 2a afforded the nitro products 3, 4, and 5 and the azoxy compounds 6 and 7, while the N-methyl and N-acetyl derivatives 2b and 2c produced only the nitro compounds 3 and 5 as sole identifiable material. An explanation of the observed photooxygenation processes involving exciplex formation followed by proton transfer from isaxazolidine to molecular oxygen is presented. © 1991. PB - Pergamon press T2 - Tetrahedron T1 - Non-sensitized photooxygenation of some steroidal isoxazolidines VL - 47 IS - 32 SP - 6389 EP - 6398 DO - 10.1016/S0040-4020(01)86567-4 ER -
@article{ author = "Lorenc, Ljubinka and Juranić, Ivan and Dabović, Milan and Mihailović, Milhailo Lj.", year = "1991", abstract = "UV irradiation of the steroidal isoxazolidines 2a, 2b, and 2c in various solvents in the presence of molecular oxygen, results in oxidative cleavage of the epoxyimino bridge to give several products; the N-unsubstituted isoxazolidine 2a afforded the nitro products 3, 4, and 5 and the azoxy compounds 6 and 7, while the N-methyl and N-acetyl derivatives 2b and 2c produced only the nitro compounds 3 and 5 as sole identifiable material. An explanation of the observed photooxygenation processes involving exciplex formation followed by proton transfer from isaxazolidine to molecular oxygen is presented. © 1991.", publisher = "Pergamon press", journal = "Tetrahedron", title = "Non-sensitized photooxygenation of some steroidal isoxazolidines", volume = "47", number = "32", pages = "6389-6398", doi = "10.1016/S0040-4020(01)86567-4" }
Lorenc, L., Juranić, I., Dabović, M.,& Mihailović, M. Lj.. (1991). Non-sensitized photooxygenation of some steroidal isoxazolidines. in Tetrahedron Pergamon press., 47(32), 6389-6398. https://doi.org/10.1016/S0040-4020(01)86567-4
Lorenc L, Juranić I, Dabović M, Mihailović ML. Non-sensitized photooxygenation of some steroidal isoxazolidines. in Tetrahedron. 1991;47(32):6389-6398. doi:10.1016/S0040-4020(01)86567-4 .
Lorenc, Ljubinka, Juranić, Ivan, Dabović, Milan, Mihailović, Milhailo Lj., "Non-sensitized photooxygenation of some steroidal isoxazolidines" in Tetrahedron, 47, no. 32 (1991):6389-6398, https://doi.org/10.1016/S0040-4020(01)86567-4 . .