Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Stefan Wershofen"'
Autor:
José Luis Núñez-Rico, Anton Vidal-Ferran, Javier Pérez-Ramírez, Begoña Puértolas, Stefan Wershofen, Marcos Rellán-Piñeiro, Núria López
Publikováno v:
Chemistry – A European Journal. 26:16129-16137
The methoxycarbonylation of anilines stands as an attractive method for the phosgene-free production of carbamates. Despite the high yields obtained for ceria catalysts, the reduction of the amount of side products and the prevention of catalyst deac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fcf44987f89ddcd26261717342eaf9f
https://doi.org/10.1002/chem.202003201
https://doi.org/10.1002/chem.202003201
Autor:
Stefan Wershofen, Begoña Puértolas, Núria López, José Luis Núñez-Rico, Anton Vidal-Ferran, Amol P. Amrute, Marcos Rellán-Piñeiro, Javier Pérez-Ramírez
Publikováno v:
RECERCAT (Dipòsit de la Recerca de Catalunya)
Recercat. Dipósit de la Recerca de Catalunya
instname
Recercat. Dipósit de la Recerca de Catalunya
instname
The methoxycarbonylation of toluenediamines with dialkyl carbonates constitutes an alternative route for the phosgene-free production of isocyanate precursors. Despite the remarkable catalytic activity of ceria in the reaction, achieving full selecti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f5772bd6e5069f526c566fba421ceb89
https://hdl.handle.net/2072/368599
https://hdl.handle.net/2072/368599
Publikováno v:
ACS Catalysis. 5:734-743
This study undertakes the design of hierarchically structured zeolites for the synthesis of methylenedianiline (MDA) mixtures via the liquid-phase condensation of aniline with formaldehyde. Affordable acid and base treatments enabled the controlled g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d1df163cf6b9fb82ac33b7cc1612eb8
https://doi.org/10.1021/cs5017694
https://doi.org/10.1021/cs5017694
Publikováno v:
Industrial & Engineering Chemistry Research. 51:16165-16170
An efficient procedure is presented for the alkoxycarbonylation of industrially important amines using environmentally friendly alkyl carbonates as reagents and Zn4O(OAc)6 as catalyst. Aromatic amines in particular (thirteen examples) consistently gi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4da52bf99fae52a5f663d860488b3931
https://doi.org/10.1021/ie301315k
https://doi.org/10.1021/ie301315k
Publikováno v:
Industrial & Engineering Chemistry Research. 49:6362-6366
Anhydrous and hydrated zinc acetates were found to efficiently catalyze alkoxycarbonylation of the aromatic diamines 2,4-toluenediamine (2,4-TDA) and 4,4′-diphenylmethane diamine (4,4′-MDA) with diethyl and dimethyl carbonate, providing the desir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d76b31ae6e1ea639cd5f8f70539af263
https://doi.org/10.1021/ie100319n
https://doi.org/10.1021/ie100319n
Publikováno v:
Industrial & Engineering Chemistry Research; Jul2010, Vol. 49 Issue 14, p6362-6366, 5p
Autor:
Hans-Dieter Scharf, Stefan Wershofen
Publikováno v:
Synthesis. 1988:854-858
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30a07eb679f1d0fc5f9c3a5750c51fa1
https://doi.org/10.1055/s-1988-27729
https://doi.org/10.1055/s-1988-27729
Publikováno v:
Liebigs Annalen der Chemie. 1989:9-18
Die Acetalisierung der 1,1- und 1,2-disubstituierten Diole 14–19 mit den Ketobausteinen 20 und 21 wird untersucht. Grosen Einflus auf die Stereochemie der gebildeten Dioxolane 22–27 (Diastereomerengemische) hat das Substitutionsmuster der eingese
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23557ccc3a34f28c2df08eca5f8ceba9
https://doi.org/10.1002/jlac.198919890104
https://doi.org/10.1002/jlac.198919890104
Publikováno v:
Liebigs Annalen der Chemie. 1987:629-632
Preparation of Enantiomeric erythro- and threo-1,2,3-Pentanetriols by an Enzymatic Recemate Resolution (2R,3S)- and (2S,3R)-erythro- (9a/9b) as well as (2R,3R)- and (2S,3S)-threo-1,2,3-pentanetriol (10a/10b) are synthesized from the rac. trans- and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26b0df760e449df8a8fe9b7ddb0d5566
https://doi.org/10.1002/jlac.198719870710
https://doi.org/10.1002/jlac.198719870710
Publikováno v:
ChemInform. 18
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::64810cda5fac7c9535178cb247429fcc
https://doi.org/10.1002/chin.198743122
https://doi.org/10.1002/chin.198743122