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2,4,6-Triazido-3-chloro-5-cyanopyridine reacts with pyrrolidine and piperidine to form corresponding 2-azido-4,6-diamino-3-chloro-5-cyanopyridines in high yields.
The γ-irradiation of solutions containing acetic acid, nitric acid and/or their salts produces nitromethane.
It has been shown for the first time that the laser-induced thermal jump of potential on a platinum electrode is sensitive to the form of oxygen adsorption.
Dihetarylsubstituted furanones 1 treated with sodium methylate undergo rearrangement to cyclopentenediones 2 , the alkylation of which leads to corresponding photochromic derivatives 3 .
The isomerization of (–)- cis -verbenol epoxide in the presence of K10 clay forms optically active 2-(2,2-dimethylcyclopent- 3-enyl)-2-hydroxypropanal as one of the products.
The classical concept of nucleophilic aromatic substitution (S N Ar ipso ) has been complemented with a new synthetic methodology (S N H ), enabling one to build new carbon–carbon C( sp 2 )–C( sp 3 ), C( sp 2 )–C( sp 2 ) and C( sp 2 )–C( sp ) or carbon–heteroatom C( sp 2 )–X (X is O,...
Two new styryl dyes of the benzothiazole series containing a 18-crown-6 moiety and an N -ammoniohexyl or N -ethyl substituent were synthesised. In acetonitrile, the dye bearing the ammoniohexyl linker forms a stable dimeric complex in the E -form and an intramolecular cation-‘capped’ complex...
The dehydrogenation of 4,5-dihydro-1 H -benz(g)indole on NiS/Al 2 O 3 (350 °C) is accompanied by a peculiar rearrangement to give 3H-benz(e)indole (71%).
A direct asymmetric aldol reaction between unmodified ketones and aldehydes was achieved for the first time using the 1( R ),2( R )-bis(( S )-prolinamido)cyclohexane/(bmim)(BF 4 ) ionic liquid catalytic system.
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