Zobrazeno 1 - 10
of 73
pro vyhledávání: '"Irene Brüdgam"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 6, Iss 1, Pp 1229-1245 (2010)
A series of γ-oxo esters suitably substituted with various styrene subunits was subjected to samarium diiodide-induced 8-endo-trig cyclizations. Efficacy, regioselectivity and stereoselectivity of these reactions via samarium ketyls strongly depend
Externí odkaz:
https://doaj.org/article/7000b6bb489e49adb23fe557ddc1f079
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 6, Iss 1, p 42 (2010)
A series of trifluoromethyl-substituted 3-alkoxypyridinol derivatives has been deprotected to furnish pyridine-3,4-diol derivatives in good yields. The X-ray crystal structure analysis proved that a 1:1 mixture of pyridine-3,4-diols and their pyridin
Externí odkaz:
https://doaj.org/article/fd8c80c049044df59c5957a00690db65
Publikováno v:
Chemical Physics. 427:87-94
The aim of this work was to describe the vibrations connected with the short hydrogen bonds of differing geometries in 2,4-dinitrobenzoic acid and in 2,4-dinitrobenzoic acid complexed in two ratios with pyridine. All three compounds contain short hyd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6aedbaef6fd363d82583c0ff438d00f7
https://doi.org/10.1016/j.chemphys.2013.10.016
https://doi.org/10.1016/j.chemphys.2013.10.016
Publikováno v:
CrystEngComm. 12:795-800
A solution of potassium nonaflate (n-C4F9SO3K = NfOK) in boiling acetonitrile forms, on subsequent cooling, a stable crystalline 1 : 1 supramolecular complex. The structures of NfOK and NfOK·CH3CN were elucidated by single-crystal X-ray structure de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bec45e47123ff488e7b0286c533e7498
https://doi.org/10.1039/b916157k
https://doi.org/10.1039/b916157k
Publikováno v:
Collection of Czechoslovak Chemical Communications. 74:1069-1080
Addition of lithiated methoxyallene to aziridine derivatives provided the expected primary addition products. The less substituted carbon of the aziridine ring was attacked selectively. The primary adducts could be converted to enantiopure piperidine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1f97b1c5918e713ad9b822de3bbb4cf1
https://doi.org/10.1135/cccc2009012
https://doi.org/10.1135/cccc2009012
Publikováno v:
European Journal of Organic Chemistry. 2009:282-291
Lewis acid promoted rearrangements of different 4-alkoxy-substituted 1,2-oxazines syn-1 are reported. Depending on the nature of this alkoxy group different reaction pathways are possible either providing bicyclic 1,2-oxazinones 2 or the novel tricyc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef6612332b9a4f5b93220ca1721f443c
https://doi.org/10.1002/ejoc.200800870
https://doi.org/10.1002/ejoc.200800870
Publikováno v:
European Journal of Organic Chemistry. 2008:3647-3655
A series of 4-pyridyl nonaflates was coupled with several terminal alkynes to efficiently provide new 4-alkynyl-substituted 3-alkoxypyridine derivatives. Apt conditions were developed for their conversion into furo[2,3-c]pyridines. Sonogashira reacti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::967eaf281de649f9ad45eb3c537dbab8
https://doi.org/10.1002/ejoc.200800398
https://doi.org/10.1002/ejoc.200800398
Publikováno v:
European Journal of Organic Chemistry. 2008:2325-2335
In this report, we describe our experiments dealing withsamarium diiodide promoted cyclizations of quinolyl-substituted ketones 6–12 and also the attempted reductive cyclization of carbazole-containing ketone 13. These precursors were prepared by H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0919ab8d285d9786e16f7251b685585c
https://doi.org/10.1002/ejoc.200800019
https://doi.org/10.1002/ejoc.200800019
Publikováno v:
Synlett. 2008:991-994
Proline-promoted Mannich reactions of a series of cycloalkanones with formalin and aniline followed by N-acetylation provided precursors 9- 12 for samarium diiodide mediated cyclizations. The ketyl-aryl coupling of these compounds furnished angularly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86f3d2cc1203ba6254848b113b531b53
https://doi.org/10.1055/s-2008-1072512
https://doi.org/10.1055/s-2008-1072512
Autor:
Boris Egart, Irene Brüdgam, Bettina Bressel, Robert Pulz, Hans-Ulrich Reißig, Ahmed Al-Harrasi
Publikováno v:
European Journal of Organic Chemistry. 2008:467-474
Acid-catalyzed transformations of carbohydrate-derived 3,6-dihydro-2H-1,2-oxazines such as 1, 5 and 13 provided a set of enantiopure furano-1,2-oxazines or pyrano-1,2-oxazines. The reaction conditions determined the degree of solvolysis of the compou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eac30b187163fab95d755d39044a9c9d
https://doi.org/10.1002/ejoc.200700792
https://doi.org/10.1002/ejoc.200700792