Zobrazeno 1 - 10
of 10
pro vyhledávání: '"and Michael Frings"'
Autor:
Tobia Lakes, Jonathan Sachs, Anika Nockert, Oliver Gruebner, Md. Mobarak Hossain Khan, Michael Frings, Patrick Hostert
Publikováno v:
Dataset Papers in Science. 2014:1-7
Background. Rapid urban growth in low and middle income countries is frequently characterized by informal developments. The resulting social segregation and slums show disparities in health outcomes for the populations of the world’s megacities. To
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb29bd9366660d7810685bb38eec2f88
https://doi.org/10.1155/2014/172182
https://doi.org/10.1155/2014/172182
Autor:
Shmuel Cohen, Michael Frings, Kasim Agbaria, Iris Thondorf, Silvio E. Biali, Jörg Brenn, Jack McB. Harrowfield, Volker Böhmer, Flavio Grynszpan, and Alexander N. Sobolev
Publikováno v:
The Journal of Organic Chemistry. 66:2900-2906
The stereochemistry of the spherand-type calixarene 2a is analyzed in terms of the configuration of the three 2,2'-dihydroxybiphenyl subunits (R or S) and the disposition of the methylene groups (crown or twist). X-ray crystallography indicates that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ca111314f4d02aef13af6da3eeed330f
https://doi.org/10.1021/jo0016576
https://doi.org/10.1021/jo0016576
Autor:
Walter Vogt, Michael Frings, Volker Böhmer, Iris Thondorf, Jens Wöhnert, Jörg Brenn, Silvio E. Biali
Publikováno v:
The Journal of Organic Chemistry. 62:8350-8360
Calixarenes 4a and 4b having hydroxyl groups in endo and exo positions and the ethanediyl-bridged exo-calixarene 5a were synthesized by a stepwise strategy. Single-crystal X-ray structures were obtained for 4a and for the exo-calixarene 3d, showing t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cca26ac5c36ef5143b4fd9c8e3bfaaf8
https://doi.org/10.1021/jo970967u
https://doi.org/10.1021/jo970967u
Autor:
Alexander N. Sobolev, Kasim Agbaria, Michael Frings, Shmuel Cohen, Iris Thondorf, Volker Boehmer, Joerg Brenn, Flavio Grynszpan, Jack McB. Harrowfield, Silvio E. Biali
Publikováno v:
ChemInform. 32
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35b41aedaf9bf2ffb7845963f6722555
https://doi.org/10.1002/chin.200134092
https://doi.org/10.1002/chin.200134092
Publikováno v:
ChemInform. 32
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a079fd5d8f120c53235c3cde2d286827
https://doi.org/10.1002/chin.200134091
https://doi.org/10.1002/chin.200134091
Autor:
Michael Frings
Publikováno v:
Romanistik in Geschichte und Gegenwart 12,1. 12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::802a54cfb5b3be26673ac5325df21697
https://doi.org/10.46771/2366078300121_5
https://doi.org/10.46771/2366078300121_5
Autor:
Kasim Agbaria, Iris Thondorf, Volker Böhmer, and Michael Frings, Silvio E. Biali, Oleg Aleksiuk
Publikováno v:
The Journal of organic chemistry. 66(9)
Oxidation of the spherand-type calixarene 4 with 1 or 2 equiv of phenyltrimethylammonium tribromide/base afforded mono- and bis(spirodienone) derivatives (8b and 9, respectively). The spirodienone groups are derived from the oxidation of two phenols
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3d2bcef322f090bf339748e603cbc8a
https://pubmed.ncbi.nlm.nih.gov/11325250
https://pubmed.ncbi.nlm.nih.gov/11325250
Autor:
Volker Böhmer, Iris Thondorf, Diana de Paoli, Ralph Dörrenbächer, Michael Frings, George Ferguson, Walter Vogt, Mathias Heydenreich
Publikováno v:
The Journal of organic chemistry. 61(2)
Various phenol-derived calix[4]arenes (3) bearing four hydroxy groups in the exo position have been prepared by uncatalyzed condensation of suitable dimers or tetramers with formaldehyde in xylene in yields up to 44%. The tetra-tert-butyl compound (3
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4311fe53258878b282369eed21558ad5
https://pubmed.ncbi.nlm.nih.gov/11666974
https://pubmed.ncbi.nlm.nih.gov/11666974
Autor:
Alexander Shivanyuk, Erich F. Paulus, Christian Schmidt, Michael Frings, Volker Böhmer, Walter Vogt
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :2777
The doubly annelated triple calix[4]arene 2a, substituted by four nitro groups was synthesised by fragment condensation of the known exo-calix[4]arene 3 and the bisbromomethylated dimer of p-nitrophenol 4. Single crystals of its calcium salt [({[Ca·
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5e980e9c8e23a9294f819b781717876
https://doi.org/10.1039/a708088c
https://doi.org/10.1039/a708088c
Autor:
Russo, Michela
Publikováno v:
Romanische Sprachen in Europa. Eine Tradition mit Zukunft? Akten zur gleichnamigen Sektion des XXIX. Deutschen Romanistentages an der Univertät des Saarlandes (25.bis 29 September 2005)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::54a2c7b9c265668c2f4ac5c18e5ee880
https://halshs.archives-ouvertes.fr/halshs-00117578
https://halshs.archives-ouvertes.fr/halshs-00117578
