Pd/C-Catalyzed Carbonylative Synthesis of 2-Aminobenzoxazinones from 2-Iodoaryl Azides and Amines
A palladium-catalyzed carbonylative procedure for the synthesis of 2-aminobenzoxazinones from 1-azido-2-iodobenzenes and amines has been developed. A broad range of 2-aminobenzoxazinone derivatives were prepared in moderate to excellent yields by using Pd
Efficient synthesis of 4H-benzo[d][1,3]oxazin-4-ones from anthranilic acids and aryl isoselenocyanates
A synthesis in good to excellent yields of 23 4H-benzo[d][1,3]oxazin-4- ones, 18 of which are novel, from monosubstituted anthranilic acids and variously substituted phenyl isoselenocyanates without using any harsh reagents has been developed. The Se powder precipitated during the reaction could be efficiently recycled for the preparation of the aryl isoselenocyanates.
Xie, Yuanyuan,Zhu, Dongmei
p. 351 - 355
(2013/07/26)
2-amino-benzoxazinone derivatives for the treatment of obesity
The use of a compound comprising formula (I): (I) or a salt, ester, amide or prodrug therof in the inhibition of an enzyme whose preferred mode of action is to catalyse the hydrolysis of an ester functionality, e.g. in the control and inhibition of unwant
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(2008/06/13)
Solution-phase parallel synthesis of benzoxazines using a polymer-supported carbodiimide
A diverse library of 2-aminobenzoxazines 3 has been synthesized using a two step approach. Addition of anthranilic acids to isocyanates affords ureas 2 that can be cyclized by polymer-supported EDC to give 2-aminobenzoxazines 3.
Buckman, Brad O.,Morrissey, Michael M.,Mohan, Raju
p. 1487 - 1488
(2007/10/03)
Tetrabutylammonium fluoride promoted intramolecular nucleophilic attack of an ester group on a carbodiimide: Preparation of 1,3-oxazolin-5-ones and 3,1-benzoxazin-4-ones
Functionalized carbodiimides bearing an ester group either at the α or β position undergo cyclization in the presence of tetrabutylammonium fluoride (TBAF) under mild conditions to give 1,3-oxazolin-5-ones or 3,1-benzoxazin-4-ones in synthetically useful yields.
Molina,Aller,Ecija,Lorenzo
p. 690 - 692
(2007/10/03)
Synthesis of 3-Aryl-2,4-dioxo-1,2,3,4-tetrahydroquinazolines and 2-Arylamino-4-oxo-4H-3,1-benzoxazines from Methyl N-Aryldithiocarbamates
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Garin, J.,Melendez, E.,Merchan, F. L.,Tejero, T.,Villarroya, E.
p. 406 - 408
(2007/10/02)
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