Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Kishor Chandra Bharadwaj"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 10, Iss 1, Pp 2975-2980 (2014)
The Morita–Baylis–Hillman reaction of acrylamide, as an activated alkene, has seen little development due to its low reactivity. We have developed the reaction using isatin derivatives with acrylamide, DABCO as a promoter and phenol as an additiv
Externí odkaz:
https://doaj.org/article/084093a8ed5240128d4d8e12215de855
Autor:
Kishor Chandra Bharadwaj
Publikováno v:
The Journal of Organic Chemistry. 83:14498-14506
Despite being a very useful C-C bond forming and highly applicative reaction, Morita-Baylis-Hillman (MBH) reaction has been limited by its excessive slow reaction rate, including its intramolecular version. In certain cases, reaction time may even go
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fd9346baac7ca0355d2bacda923d3144
https://doi.org/10.1021/acs.joc.8b02310
https://doi.org/10.1021/acs.joc.8b02310
Publikováno v:
Tetrahedron Letters. 59:3439-3442
We have described CsF-catalyzed trifluoromethylation of heteroaromatic aldehydes at room temperature to afford trifluoromethyl group containing alcohols in very good yields. Using catalytic amount of CsF (0.2 eq.) in toluene, trifluoromethylated prod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ddeaef3831ca3fccea24023b2a00b5e9
https://doi.org/10.1016/j.tetlet.2018.08.012
https://doi.org/10.1016/j.tetlet.2018.08.012
Autor:
Kishor Chandra Bharadwaj
Publikováno v:
Tetrahedron. 73:5690-5699
Acrylamides are fundamental Michael acceptors which have been used profoundly in synthetic, medicinal and polymer chemistry. However, due to their lower reactivity they have been least used in Morita-Baylis-Hillman (MBH) reaction and have been out of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3d8a5ea9871e485e6c3a93cf56ce13c9
https://doi.org/10.1016/j.tet.2017.08.002
https://doi.org/10.1016/j.tet.2017.08.002
Autor:
Kishor Chandra Bharadwaj
Publikováno v:
ChemistrySelect. 2:5384-5389
Use of acrylamide as an activated alkene in largely recognized Morita Baylis Hillman (MBH) reaction has been least explored owing to less reactivity of acrylamide as Michael acceptor. Contrary acrylamide have profound applications in synthetic, medic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5625eb81a97e0d7776aded739ac3442d
https://doi.org/10.1002/slct.201701081
https://doi.org/10.1002/slct.201701081
Publikováno v:
European Journal of Organic Chemistry. 2016:4981-4984
A reaction involving the use of acetylacetone/methyl acetoacetate and Morita–Baylis–Hillman acetates for the efficient, one-pot, metal-free synthesis of 9,10-dihydroacridines at room temperature was developed. The cascade of reactions involved se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7bc4e5b16ddad580db3e27788590447
https://doi.org/10.1002/ejoc.201600911
https://doi.org/10.1002/ejoc.201600911
Publikováno v:
Organic Chemistry Frontiers. 3:1100-1104
Pd mediated one pot sequential Sonogashira coupling followed by annulation using o-alkynyl aldehyde is reported. Contrary to the established modes of ring closures, an unusual mode of the initial attack of sulphur across the triple bond occurs leadin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d40902f341fc7c63fadd66fcc599b74
https://doi.org/10.1039/c6qo00203j
https://doi.org/10.1039/c6qo00203j
Publikováno v:
Tetrahedron. 72:312-317
A novel approach utilizing dual Morita–Baylis–Hillman (MBH) reactions in form of intermolecular and a chemo selective intramolecular version, has been developed. With three electrophilic and a nucleophilic site in precursor, selective condition f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b48cf2269c5ff3dd0c540c282c12d2c2
https://doi.org/10.1016/j.tet.2015.11.041
https://doi.org/10.1016/j.tet.2015.11.041
Autor:
Shweta Agarwal, Sangeeta Bajpai, Kishor Chandra Bharadwaj, Rashmi Dubey, Pratibha Dwivedi, Archana Gaurav, Anil Kumar Gupta, Atul Gupta, Tanu Gupta, Surendra Jatav, Anupam Kujur, Rakesh Kumar, Ranjeet Kumar, Manisha Mann, Simpi Mehta, Bhuwan B. Mishra, Ritu Mishra, Sudhir Kumar Pandey, Seema R. Pathak, Bhanu Prakash, Sunil Kumar Rai, Naina Sehra, Gereraj Sengupta, Mangat Singh, Radhey M. Singh, Akhileshwar Kumar Srivastava, Ashish Kumar Tewari, Anuj Thakur, Supriya Tiwari, Amrita Yadav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2ffdab3fc273d60810dc6c4d53efcd6
https://doi.org/10.1016/b978-0-08-102071-5.00020-9
https://doi.org/10.1016/b978-0-08-102071-5.00020-9
Of the various natural products isolated so far, cinchona alkaloids hold the supreme position for their various medicinal, synthetic, and catalytic applications. The diverse array of structural features studded with a complete spectrum of biological
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f4924f866b355d856d37870fe0b2f7c
https://doi.org/10.1016/b978-0-08-102071-5.00009-x
https://doi.org/10.1016/b978-0-08-102071-5.00009-x