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pro vyhledávání: '"Osama Mahmoud Ali Habib"'
Autor:
Rudolf Wartchow, Zhirong Zhao-Karger, Osama Mahmoud Ali Habib, Holger Butenschön, Ismail A. Abdelhamid
Publikováno v:
European Journal of Organic Chemistry. 2010:6072-6083
The complexation of phthalimide derivatives with hexacarbonylchromium in dibutyl ether/THF (10:1) afforded the corresponding tricarbonylchromium complexes, which were characterized spectroscopically. Subsequent nucleophilic addition with Grignard or
Publikováno v:
European Journal of Organic Chemistry.
Treatment of 1,4-dibromo-2,5-dimethoxybenzene (6) with NaNH2 followed by 1,1-dimethoxyethene (7) afforded the bi- and tricyclic acetals such as 8 and 9 as the products of [2+2] cycloadditions of the intermediate arynes. After chromatographic separati