Zobrazeno 1 - 10
of 120
pro vyhledávání: '"Asok K. Mallik"'
Publikováno v:
ARKIVOC, Vol 2012, Iss 9, Pp 95-110 (2012)
Externí odkaz:
https://doaj.org/article/6fa108ac585841199c2f8dac271252fd
Publikováno v:
ARKIVOC, Vol 2012, Iss 9, Pp 85-94 (2012)
Externí odkaz:
https://doaj.org/article/5a6a8c6d86e64ee68f752bf9312ae99d
Publikováno v:
E-Journal of Chemistry, Vol 8, Iss 2, Pp 863-869 (2011)
Different aromatic aldehydes and cinnamaldehyde undergo cross-aldol condensation with chroman-4-ones and1-thiochroman-4-ones in the presence of amberlyst-15 under microwave irradiation in solvent free condition to afford rapidly the corresponding E-3
Externí odkaz:
https://doaj.org/article/71105dee67024d0fa023390afe6d2f38
Publikováno v:
Journal of Chemistry, Vol 2013 (2013)
On treatment with NaN3/c. H2SO4-HOAc or NaN3/TFA, E-3-benzylidenechromanones are mostly converted to E-β-aminobenzylidenechromanones while E-3-benzylidenethiochromanones are converted to 3-benzoylthiochromones. A structurally new type of product has
Externí odkaz:
https://doaj.org/article/85c98b94a7244a2bb1a21e5e1962c5c7
Publikováno v:
Molbank, Vol 2011, Iss 1, p M719 (2011)
Iodine-catalyzed cyclocondensation of cinnamaldehyde and thiophenol yields rapidly trans-2-phenyl-4-thiophenoxy-3,4-dihydro-2H-1-benzothiopyran in excellent yield with very high diastereoselectivity.
Externí odkaz:
https://doaj.org/article/4a48b7b931dd420b8f6667cf7b5f6d5a
Publikováno v:
Journal of Chemical Sciences. 132
Some of the chalcones and flavones are very efficient to facilitate the signal of death to the lung cancer cell through blocking the active site BH3 of Bcl-2 proteins. We designed a number of novel chalcones and flavones targeting the active site of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a2cd2a7fdc5cd81892ed395c52adb03
https://doi.org/10.1007/s12039-020-01812-2
https://doi.org/10.1007/s12039-020-01812-2
Publikováno v:
Monatshefte für Chemie - Chemical Monthly. 149:2113-2121
Amberlyst-15 catalyzed condensation of 2-hydroxychalcones and 4,4-dimethylcyclohexane-1,3-dione in refluxing toluene was found to show regioselectivity resulting in (6R*,12S*)-2,2-dimethyl-6-phenyl-2,3,4,12-tetrahydro-1H-6,12-methanodibenzo[d,g][1,3]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2932704a721e71fcc3e651c860512148
https://doi.org/10.1007/s00706-018-2258-z
https://doi.org/10.1007/s00706-018-2258-z
Publikováno v:
Crystallography Reports. 63:394-400
Sodium borohydride reduction of E-3-benzylidenechromanone epoxides in dry methanol has afforded 3(S*), 4(S*)-dihydroxy-3-[α(R*)-methoxybenzyl]chromans as an interesting class of products, the structures of which have been assigned mainly from spectr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fc60dab4ffedd1e0c21770e01673538
https://doi.org/10.1134/s1063774518030185
https://doi.org/10.1134/s1063774518030185
Publikováno v:
Synlett. 29:1161-1166
Thia-Michael addition of thiophenol to α,α′-di[(E)-benzylidene]alkanones of both cyclic (six-membered) and acyclic varieties using anhydrous K2CO3 or amberlyst-15 as catalyst has been found to be highly diastereoselective at 15 °C. A one-pot p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e41cc8317ed2171fd654658bc3773c57
https://doi.org/10.1055/s-0036-1591961
https://doi.org/10.1055/s-0036-1591961
Autor:
Falguni Chattopadhyay, Asok K. Mallik, Tapas Kumar Mandal, Chayan Guha, Nayim Sepay, Haimanti Mallik
Publikováno v:
Organic Preparations and Procedures International. 50:100-107
Oxiranes (epoxides) are very versatile building blocks in organic synthesis, and they can be opened up with a wide range of nucleophiles.1–3 Nucleophilic addition to epoxides plays a pivotal role i...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aeb2b337b3dada2cb1304e10c86446bf
https://doi.org/10.1080/00304948.2018.1405335
https://doi.org/10.1080/00304948.2018.1405335