Wichterle; Svastal, Collection of Czechoslovak Chemical Communications, 1951, vol. 16/17, p. 33,37
作者:Wichterle、Svastal
DOI:——
日期:——
In Situ Generation of Nitroso Compounds from Catalytic Hydrogen Peroxide Oxidation of Primary Aromatic Amines and Their One-Pot Use in Hetero-Diels–Alder Reactions
作者:Dongbo Zhao、Mikael Johansson、Jan-E. Bäckvall
DOI:10.1002/ejoc.200700368
日期:2007.9
sulfides to sulfoxides and this catalytic system was recycled and reused in an ionic liquid.In the third example, primary aromatic amines were oxidized by H2O2 to nitrosocompounds in a selenium-catalyzed oxidation. The nitrosoarenes were used in a one-pot hetero Diels-Alder reaction with dienes forming 1,2-oxazines.In the fourth example, a cobalt salophen complex was immobilized in different zeolites
Highly-functionalized pyrroles could be effectively synthesized from 3,6-dihydro-1,2-oxazines using a heterogeneous copper on carbon (Cu/C) under neat heating conditions. Furthermore, the in situ formation of 3,6-dihydro-1,2-oxazines via the hetero Diels–Alder reaction between nitroso dienophiles and 1,3-dienes and the following Cu/C-catalyzed pyrrolesynthesis also provided the corresponding pyrrole derivatives