Zobrazeno 1 - 10
of 100
pro vyhledávání: '"Meijere, Armin de"'
Publikováno v:
Journal of the Brazilian Chemical Society, Vol 13, Iss 5, Pp 664-668 (2002)
cis-4a-Methyloctahydrophenanthrene (1) was prepared in 8 steps (23% overall yield) from 2-bromophenyl)acetic acid (3) and cyclohexane-1,3-dione (6). A highly cis-diastereoselective Michael-type Heck coupling served as the key step in the assembly of
Externí odkaz:
https://doaj.org/article/612740aa20284a0bb3ab302c39f240a2
Limitations in determining enantiomeric excess of alcohols by 31P-NMR of the phosphonate derivatives
Autor:
Laverde Jr. Antonio, Miranda Domingos S. de, Conceição Gelson J.A. da, Schirmer Heiko, Pilli Ronaldo A., Meijere Armin de, Marsaioli Anita J.
Publikováno v:
Journal of the Brazilian Chemical Society, Vol 10, Iss 4, Pp 293-298 (1999)
The use of diastereomeric alcohol dialkylphosphonate derivatives to determine the enantiomeric excesses via 31P-NMR signal ratios of anisochronous meso and threo isomers was successfully applied to secondary alcohols (Feringa?s method). Expansion of
Externí odkaz:
https://doaj.org/article/a2717b728ae1482ab49cc73cdd727e3b
Publikováno v:
In Journal of Organometallic Chemistry 2004 689(12):2033-2055
Autor:
Valenti´c, Nataésa V., Vitnik, éZeljko, Kozhushkov, Sergei I., Meijere, Armin de, Ués´cumli´c, Gordana S., Juranic, Ivan O.
Publikováno v:
Journal of the Serbian Chemical Society, Vol 68, Iss 2, Pp 67-76 (2003)
The principles of linear free energy relationships were applied to the 13C substituent chemical shifts (SCS) of the carbon atoms in the unsaturated chain of 3-methylene-4-substituted-1,4-pentadienes. Correlations of the SCS with the substituent param
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::40c65a8585e9cfe6623678569d660350
Publikováno v:
Tetrahedron. 51:11141-11148
(1-Ethoxy-3-morpholinoalkenylidene)pentacarbonylchromium complexes 1 react with terminal alkynes in DMF or THF in the presence of water to give 2-acyl-3-morpholino-2-cyclopentenones 2 in moderate to good yields (26–62%).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f74595af1bd93c5c5c1ee683a680c35
https://doi.org/10.1016/0040-4020(95)00675-x
https://doi.org/10.1016/0040-4020(95)00675-x
Autor:
Nikolai S. Zefirov, Meijere Armin De, Roland Boese, S. Zoellner, Sergei I. Kozhushkov, Dmitry S. Yufit, B. I. Ugrak, K. A. Lukin, O. V. Kokoreva, Yu. T. Struchkov
Publikováno v:
ChemInform. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e4004b502c26661b9b8eed5d1f14bef
https://doi.org/10.1002/chin.199224113
https://doi.org/10.1002/chin.199224113
Autor:
Limbach, Michael, Lygin, Alexander V., Korotkov, Vadim S., Es-Sayed, Mazen, Meijere, Armin de
Publikováno v:
Organic & Biomolecular Chemistry; 8/21/2009, Issue 16, p3338-3342, 5p
Autor:
Wang, Xi-Sen, Ma, Shengqian, Rauch, Karsten, Simmons, Jason M., Yuan, Daqiang, Wang, Xiaoping, Yildirim, Taner, Cole, William C., López, Joseph J., Meijere, Armin de, Zhou, Hong-Cai
Publikováno v:
Chemistry of Materials; Apr2008, Vol. 20 Issue 9, p3145-3152, 8p