Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Sukant Kishore Das"'
Autor:
Krishnaji Tadiparthi, Pragya Anand, Raghavendra Sakirolla, T. Prakash Gupta, Krishna A Jadhav, Sukant Kishore Das, Jhillu Singh Yadav
Publikováno v:
The Chemical Record. 22
The compounds containing chiral centers and different functional groups serve as magnificent building blocks for the preparation of various natural products that are having immense biological activity. "Dimethyl-8-oxa-bicyclo[3.2.1]oct-6-en-3-ol" is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5e7b016414ec16688e64eeec3c61c81
https://doi.org/10.1002/tcr.202100286
https://doi.org/10.1002/tcr.202100286
Autor:
Thavendran Govender, Marivale Samipillai, Glenn E. M. Maguire, Hendrik G. Kruger, Nilay Bhatt, Sukant Kishore Das
Publikováno v:
Zeitschrift für Kristallographie-New Crystal Structures, Vol 231, Iss 1, Pp 43-45 (2016)
C15H19N2O5Cl, triclinic, P1̅ (no. 2), a = 8.2232(9) Å, b = 8.5833(10) Å, c = 12.5916(13) Å, β = 100.713(5)°, V = 833.39 Å3, Z = 2, R gt (F) = 0.0331, wR ref (F 2 ) = 0.0870, T = 173 K.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78f311187d51721b48269d325e20dd9a
https://doaj.org/article/ddd13dfdb1344cbfb3d5fdea65c534f2
https://doaj.org/article/ddd13dfdb1344cbfb3d5fdea65c534f2
Publikováno v:
Synthesis. 47:330-342
The first total synthesis of pectinolides D and E and total synthesis of pectinolides A and C was achieved from a hitherto unknown common key building block prepared from readily available d -mannitol. Key reactions involved in the synthesis are Red-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::690678af5b381570dbd0bc28e33646b8
https://doi.org/10.1055/s-0034-1378912
https://doi.org/10.1055/s-0034-1378912
Autor:
Thavendran Govender, Tricia Naicker, Mohammad Mujahid, Nilay Bhatt, Sukant Kishore Das, Hendrik G. Kruger, Per I. Arvidsson
Publikováno v:
Tetrahedron Letters. 56:5172-5174
A mild organocatalytic protocol for the syntheses of α,α-disubstituted proline analogues has been developed. The 3-ketoproline scaffold was functionalised using various aromatic nitrostyrenes in the presence of a bifunctional organocatalyst. The re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cef918af2d9defaf351376ec6c23767b
https://doi.org/10.1016/j.tetlet.2015.07.065
https://doi.org/10.1016/j.tetlet.2015.07.065
Publikováno v:
Synthesis. 45:651-654
An efficient total synthesis of pectinolide H was achieved by using alkynylation, asymmetric reduction in the presence of a Corey–Bakshi–Shibata catalyst, and a Still–Gennari olefination as key steps.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a96030a2a7289d23bfc3a02a2f76a40
https://doi.org/10.1055/s-0032-1318000
https://doi.org/10.1055/s-0032-1318000
Autor:
Mohammad Mujahid, Tricia Naicker, Sukant Kishore Das, Per I. Arvidsson, Thavendran Govender, Hendrik G. Kruger, Nilay Bhatt
Publikováno v:
ChemInform. 47
Asymmetric Michael addition of ketoproline derivative (I) to nitrostyrenes affords the title products with excellent diastereoselectivities and high enantioselectivities.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::92168c4d177fbce18c4a094585364881
https://doi.org/10.1002/chin.201601109
https://doi.org/10.1002/chin.201601109
Publikováno v:
Tetrahedron Letters. 54:1097-1099
The first stereoselective synthesis of pectinolide C and synthesis of pectinolide A, from easily accessible 1-hexyne and d -mannitol are reported in a convergent manner. The salient features include acetylenic addition to the chiral aldehyde and Stil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2207515eba64d0963ac8f47d592b9a50
https://doi.org/10.1016/j.tetlet.2012.12.039
https://doi.org/10.1016/j.tetlet.2012.12.039
Publikováno v:
Helvetica Chimica Acta. 93:2023-2025
The aza-Prins cyclization of homoallyl N-tosylamine with aliphatic aldehydes gives trans-2-alkyl-4-iodo-1-tosylpiperidines. This method is chemoselective as it works only with the aliphatic aldehydes, and, in the case of aromatic aldehydes, the start
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98c925ee5eb3ff7ccc1841e05dd3cbf9
https://doi.org/10.1002/hlca.201000027
https://doi.org/10.1002/hlca.201000027
Publikováno v:
Tetrahedron Letters. 36:1933-1936
As a part of study on zaragozic acid bicyclic core, unusual observations in anhydro-ring formation depending on the stereochemistry at C-6 of the carbohydrate templates have been described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3beff9df6c923f46f0a1dc3450c71f63
https://doi.org/10.1016/0040-4039(95)00160-e
https://doi.org/10.1016/0040-4039(95)00160-e
Publikováno v:
Tetrahedron Letters. 36:1937-1940
The synthesis of bicyclic core of zaragozic acid —. containing three quarternary chiral carbon centers has been investigated.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b7e5ff17fc2897092591e6555bea98b
https://doi.org/10.1016/0040-4039(95)00161-5
https://doi.org/10.1016/0040-4039(95)00161-5