Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Elizabeth A. O'Bryan"'
Autor:
Julien Dugal-Tessier, Elizabeth A. O'Bryan, Daniel T. Cohen, Karl A. Scheidt, Thomas Schroeder
Publikováno v:
Angewandte Chemie International Edition. 51:4963-4967
A cooperative catalysis approach for the enantioselective formal [3+2] addition of α,β-unsaturated aldehydes to isatins has been developed. The N-heterocyclic carbene (NHC)-catalyzed homoenolate annulations of β-aryl enals require the addition of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27458e15141059615923099f11087d2f
https://doi.org/10.1002/anie.201201643
https://doi.org/10.1002/anie.201201643
Autor:
Elizabeth A. O'Bryan, Peter L. Johnson
Publikováno v:
Journal of Labelled Compounds and Radiopharmaceuticals. 55:161-165
γ-Cyhalothrin is a single isomer, synthetic pyrethroid insecticide. This material was originally developed and marketed by Pytech Chemicals, a joint venture between Dow AgroSciences and Cheminova A/S. Cheminova A/S now wholly owns Pytech Chemical. A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4380996d12bd6f6fb372de90acbf17ae
https://doi.org/10.1002/jlcr.2915
https://doi.org/10.1002/jlcr.2915
Publikováno v:
Organic Letters. 13:4712-4715
The formal synthesis of (+)-sorangicin A was completed by two independent routes. Both approaches feature a cross metathesis reaction to form the C29-C30 bond to arrive at the bicyclic ether/tetrahydropyran fragment. Formation of the C15-C16 olefin t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::24aaa50aa8ccd7c0368c6522431c3204
https://doi.org/10.1021/ol201920j
https://doi.org/10.1021/ol201920j
Publikováno v:
Organic Letters. 12:4416-4419
The enantioselective total synthesis of spirofungins A (1) and B (2) is reported in 14 steps over the longest linear sequence. Key steps include the use of thiazolidinethione-mediated aldol reactions to assemble the major fragments and installation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9468c82989c7ebfbd5eeba00491dc068
https://doi.org/10.1021/ol101961c
https://doi.org/10.1021/ol101961c
Autor:
Elizabeth A. O'Bryan, Karl A. Scheidt
The α-hydroxy ketone group, or acyloin, is prevalent in natural products and pharmaceuticals, and the development of efficient methods to install this functional group remains an important synthetic challenge. As a result, several distinct methods f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3521090bce1aae2cdd271663de537ee1
https://doi.org/10.1016/b978-0-08-097742-3.00317-7
https://doi.org/10.1016/b978-0-08-097742-3.00317-7
Autor:
Karl A. Scheidt, Julien Dugal-Tessier, Elizabeth A. O'Bryan, Daniel T. Cohen, Thomas Schroeder
Publikováno v:
ChemInform. 43
In the reaction of β-aryl substituted enals the addition of LiCl enhances the level of entantioselectivity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68bd345c7bd82b5c7809f90c6b93302f
https://doi.org/10.1002/chin.201240136
https://doi.org/10.1002/chin.201240136
Publikováno v:
Organic Letters; Oct2010, Vol. 12 Issue 19, p4416-4419, 4p