Synthesis of pyrrol-2-yl- and pyrazol-4-ylmethylidene derivatives of betulin and allobetulin
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| 024 | 7 | 0 | |a 10.1134/S1070428015050231 |2 doi |
| 035 | |a (NATIONALLICENCE)springer-10.1134/S1070428015050231 | ||
| 245 | 0 | 0 | |a Synthesis of pyrrol-2-yl- and pyrazol-4-ylmethylidene derivatives of betulin and allobetulin |h [Elektronische Daten] |c [N. Babak, A. Semenenko, I. Gella, V. Musatov, S. Shishkina, N. Novikova, D. Sofronov, D. Morina, V. Lipson] |
| 520 | 3 | |a Aldol-crotonic condensation of allobetulone and betulonic aldehyde with N-substituted pyrrole-2- and pyrazole-4-carbaldehydes afforded a series of new α,β-unsaturated ketones of lupane series. Their reduction provided 2-ylidene derivatives of allobetulin and betulin, potential chiral components of liquid crystal materials. Structures of 1-phenyl-3-(4-phenoxyphenyl)-1H-pyrazole-4-carbaldehyde, (E)-2-{[3-(4-methoxyphenyl)-1-phenyl-1H-pyrazol-4-yl]methylidene}allobetulone, (E)-2-{[3-(4-bromophenyl)-1-phenyl-1H-pyrazol-4-yl]methylidene}-3-oxolup-20(29)-ene-28-carbaldehyde, (E)-2-{[3-(4-bromo-phenyl)-1-phenyl-1H-pyrazol-4-yl]methylidene}allobetulin, and (E)-2-{[3-(4-bromophe-nyl)-1-phenyl-1H-pyrazol-4-yl]-methylidene}lup-20(29)-ene-3,28-diol were established by X-ray diffraction (XRD) study. | |
| 540 | |a Pleiades Publishing, Ltd., 2015 | ||
| 700 | 1 | |a Babak |D N. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | |
| 700 | 1 | |a Semenenko |D A. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | |
| 700 | 1 | |a Gella |D I. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | |
| 700 | 1 | |a Musatov |D V. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | |
| 700 | 1 | |a Shishkina |D S. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | |
| 700 | 1 | |a Novikova |D N. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | |
| 700 | 1 | |a Sofronov |D D. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | |
| 700 | 1 | |a Morina |D D. |u Karazin Kharkiv National University, Kharkiv, Ukraine |4 aut | |
| 700 | 1 | |a Lipson |D V. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | |
| 773 | 0 | |t Russian Journal of Organic Chemistry |d Pleiades Publishing |g 51/5(2015-05-01), 715-726 |x 1070-4280 |q 51:5<715 |1 2015 |2 51 |o 11178 | |
| 856 | 4 | 0 | |u https://doi.org/10.1134/S1070428015050231 |q text/html |z Onlinezugriff via DOI |
| 898 | |a BK010053 |b XK010053 |c XK010000 | ||
| 900 | 7 | |a Metadata rights reserved |b Springer special CC-BY-NC licence |2 nationallicence | |
| 908 | |D 1 |a research-article |2 jats | ||
| 949 | |B NATIONALLICENCE |F NATIONALLICENCE |b NL-springer | ||
| 950 | |B NATIONALLICENCE |P 856 |E 40 |u https://doi.org/10.1134/S1070428015050231 |q text/html |z Onlinezugriff via DOI | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Babak |D N. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Semenenko |D A. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Gella |D I. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Musatov |D V. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Shishkina |D S. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Novikova |D N. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Sofronov |D D. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Morina |D D. |u Karazin Kharkiv National University, Kharkiv, Ukraine |4 aut | ||
| 950 | |B NATIONALLICENCE |P 700 |E 1- |a Lipson |D V. |u Institute of Single Crystals, National Academy of Sciences of Ukraine, pr. Lenina 60, 61001, Kharkiv, Ukraine |4 aut | ||
| 950 | |B NATIONALLICENCE |P 773 |E 0- |t Russian Journal of Organic Chemistry |d Pleiades Publishing |g 51/5(2015-05-01), 715-726 |x 1070-4280 |q 51:5<715 |1 2015 |2 51 |o 11178 | ||