منابع مشابه
Regioselective bromination of fused heterocyclic N-oxides.
A mild method for the regioselective C2-bromination of fused azine N-oxides is presented, employing tosic anhydride as the activator and tetra-n-butylammonium bromide as the nucleophilic bromide source. The C2-brominated compounds are produced in moderate to excellent yields and with excellent regioselectivity in most cases. The potential extension of this method to other halogens, effecting C2...
متن کاملCoupling Reactions of α-Bromocarboxylate with Non-Aromatic N-Heterocycles
The conditions for the C-N bond forming reaction (C-N coupling reaction) between α-bromocarboxylate and nitrogen-containing non-aromatic heterocyclic rings under heterogeneous copper(I) oxide catalysis are investigated in this paper. All the generated compounds were fully characterized by IR, NMR and MS spectroscopy. Ab initio/DFT calculations of partial charges on nitrogen atoms in all the dis...
متن کاملGold-catalysed cycloisomerisation reactions of 2-(2-propynyl)pyridine N-oxides leading to indolizinones.
Gold(I)-catalysed tandem oxygen-transfer/cycloisomerisation reaction of 2-(2-propynyl)pyridine N-oxides provides an atom-economical route to indolizinone frameworks.
متن کاملSome N- and S-heterocyclic Polycyclic Aromatic Hydrocarbons
Benz[a]acridine was considered by previous IARC Working Groups in 1983 and 1987 (IARC, 1983, 1987). Since that time, new data have become available; these have been incorporated into the Monograph, and taken into consideration in the present evaluation. Benz[c]acridine was considered by previous Working Groups in 1972, 1983, and 1987 (IARC, 1973a, 1983, 1987). Since that time, new data have bec...
متن کاملSome N- and S-heterocyclic Polycyclic Aromatic Hydrocarbons
Benz[a]acridine was considered by previous IARC Working Groups in 1983 and 1987 (IARC, 1983, 1987). Since that time, new data have become available; these have been incorporated into the Monograph, and taken into consideration in the present evaluation. Benz[c]acridine was considered by previous Working Groups in 1972, 1983, and 1987 (IARC, 1973a, 1983, 1987). Since that time, new data have bec...
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ژورنال
عنوان ژورنال: Nippon kagaku zassi
سال: 1966
ISSN: 0369-5387,2185-0917
DOI: 10.1246/nikkashi1948.87.8_884