Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Barbara Zajc"'
Autor:
Mahesh K. Lakshman, Barbara Zajc
Publikováno v:
ARKIVOC, Vol 2018, Iss 2, Pp 252-279 (2017)
Externí odkaz:
https://doaj.org/article/60469a11f43443cb94c76b6164ac7f57
Publikováno v:
Molecules, Vol 19, Iss 4, Pp 4418-4432 (2014)
Modular synthesis of regiospecifically fluorinated 2,4-diene Weinreb amides, with defined stereochemistry at both double bonds, was achieved via two sequential Julia-Kocienski olefinations. In the first step, a Z-a-fluorovinyl Weinreb amide unit with
Externí odkaz:
https://doaj.org/article/0bea6de9ab934d37aca310a3aaa3418a
Publikováno v:
Chemical Communications. 58:1744-1747
Facile synthesis of adenosine and 2′-deoxyadenosine 8-carboxaldehydes provides a segue to diversely C8-functionalized adenine nucleoside analogues.
Autor:
Barbara Zajc, Magdalena R. Andrzejewska, Tashrique A. Khandaker, Kirill A. Korvinson, Hari K. Akula, Casina T. Malinchak, Wei Wei, Dellamol Sebastian, Mahesh K. Lakshman
Publikováno v:
Adv Synth Catal
Facile reduction of aryl halides with a combination of 5% Pd/C, B(2)(OH)(4), and 4-methylmorpholine is reported. Aryl bromides, iodides, and chlorides were efficiently reduced. Aryl dihalides containing two different halogen atoms underwent selective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b47347a7064f49843b8f58fd6f1ff71
https://europepmc.org/articles/PMC7566957/
https://europepmc.org/articles/PMC7566957/
Autor:
Barbara Zajc, Mahesh K. Lakshman
Publikováno v:
ARKIVOC, Vol 2018, Iss 2, Pp 252-279 (2017)
There has been increasing use of hypervalent iodine reagents in the field of nucleoside chemistry. Applications span: (a) synthesis of nucleoside analogues with sulfur and seleno sugar surrogates, (b) synthesis of unusual carbocyclic and ether ring-c
Autor:
Wei Wei, Rama Kanwar Khangarot, Lothar Stahl, Cristina Veresmortean, Padmanava Pradhan, Lijia Yang, Barbara Zajc
Publikováno v:
Organic Letters. 23:4508-4508
Autor:
Michael S. A. Benavidez, Lisa Guerrera, Fatou A. Tine, Vikram Basava, Nana B. Agyemang, Marikone Gaši, Tashrique A. Khandaker, Barbara Zajc, Mahesh K. Lakshman
Publikováno v:
Synlett. 28:381-385
TBDMS (t-BuMe2Si, tert-butyldimethylsilyl) ethers of a variety of phenols have been deprotected with KHF2 in MeOH, at room temperature. Carboxylic ester and labile phenolic acetate were unaffected under these conditions. In competition reactions betw
Autor:
Casina T. Malinchak, Barbara Zajc, Mahesh K. Lakshman, Dellamol Sebastian, Tashrique A. Khandaker, Magdalena R. Andrzejewska, Kirill A. Korvinson, Wei Wei, Hari K. Akula
Publikováno v:
Advanced Synthesis & Catalysis. 362:2-2
Autor:
Padmanava Pradhan, Wei Wei, Cristina Veresmortean, Lothar Stahl, Rama Kanwar Khangarot, Lijia Yang, Barbara Zajc
Publikováno v:
Org Lett
Diastereoselective fluorination of N-Boc ( R)- and ( S)-2,2-dimethyl-4-((arylsulfonyl)methyl)oxazolidines and a previously unknown diastereoselective epimerization at the fluorine-bearing carbon atom α to the sulfone was realized. Diastereoselectivi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9ff6371cf05819972db1bf6d3971119
https://europepmc.org/articles/PMC8117975/
https://europepmc.org/articles/PMC8117975/
Autor:
Mahesh K, Lakshman, Fatou A, Tine, Tashrique A, Khandaker, Vikram, Basava, Nana B, Agyemang, Michael S A, Benavidez, Marikone, Gaši, Lisa, Guerrera, Barbara, Zajc
Publikováno v:
Synlett : accounts and rapid communications in synthetic organic chemistry. 28(3)
TBDMS (t-BuMe2Si, t-butyldimethylsilyl) ethers of a variety of phenols have been deprotected with KHF2 in MeOH, at room temperature. Carboxylic ester and labile phenolic acetate were unaffected under these conditions. In competition reactions between