Microwave-assisted cyclic amidine synthesis using TiCl4.
Microwave-assisted treatment of various heterocyclic amides (benzodiazepinone, phthalazone) with TiCl(4) in the presence of primary or secondary amines provides the corresponding amidines. In addition to the interest of the microwaves for this reaction, our study highlights the higher reactivity of the cyclic acetamide moiety compared to the cyclic benzamide moiety towards this TiCl(4)-mediated reaction.
Hellal
Malik
M
Institut Gilbert Laustriat, UMR7175, Faculté de pharmacie, 74 route du rhin, BP60024, Illkirch Graffenstaden, France.
Bihel
Frédéric
F
Mongeot
Alexandre
A
Bourguignon
Jean-Jacques
JJ
D000578:Amidines / Q000138:chemical synthesis*; D009682:Magnetic Resonance Spectroscopy; D008872:Microwaves; D021241:Spectrometry, Mass, Electrospray Ionization; D014025:Titanium / Q000737:chemistry*
D000578:Amidines; C025096:titanium tetrachloride; D014025:Titanium