Effect of catalytic alkali metal bromide on Hofmann-type rearrangement of imides
作者:Katsuhiko Moriyama、Kazuma Ishida、Hideo Togo
DOI:10.1039/c2cc33914e
日期:——
The Hofmann-type rearrangement of aromatic and aliphatic imides using KBr as the catalyst proceeded to provide aromatic and aliphatic amino acid derivatives. We have also developed a new synthetic route to gabapentin with this method.
Beyond conventional routes, an unprecedented metal-free chemoselective synthesis of anthranilate esters via a multicomponent reaction (MCR) strategy
作者:Satavisha Sarkar、Abu T. Khan
DOI:10.1039/c5cc03369a
日期:——
A hitherto unreported route for the synthesis of anthranilate esters is demonstrated using 2-nitrobenzaldehyde, malonitrile and an alcohol or amine via a metal and oxidant free multicomponent reaction (MCR) strategy.
Tunable Electrosynthesis of Anthranilic Acid Derivatives via a C–C Bond Cleavage of Isatins
作者:Peng Qian、Jiaojiao Liu、Yan Zhang、Zhiyong Wang
DOI:10.1021/acs.joc.1c01017
日期:2021.11.19
A facile and direct electrocatalytic C–C bond cleavage/functionalization reaction of isatins was developed. With isatins as the amino-attached C1 sources, a variety of aminobenzoates, and aminobenzamides were synthesized in moderate to good yields under mild conditions.
A novel electrochemical protocol for the oxidative cleavage of indoles has been developed, which offers a simple way to access synthetically useful anthranilic acid derivatives. In undivided cells, a wide variety of indoles and alcohol compounds are examined to afford amide ester aromatics without using extra oxidants and stoichiometric metal catalysts, which avoids the formation of undesired by-products
Phthalimido-nitren I. Bleitetraacetat-Oxydation von N-Aminophthalimid in inerten Lösungsmitteln. Bildung und Eigenschaften von<i>trans</i>-1,4-Bisphthaloyl-2-tetrazen
作者:Lienhard Hoesch、André S. Dreiding
DOI:10.1002/hlca.19750580404
日期:1975.4.23
Lead tetraacetate oxidation of N-aminophthalimide (11) in inert solvents gives as major products phthalimide (15) or trans-1,4-bisphthaloyl-2-tetrazene (12), the former (15) on slow, the latter (12) on fast addition of the oxidizing agent. As by-products are found: (a) in the presence of acetic acid: N-acetylamino-phthalimide (14), and (b) in its absence (especially at higher temperatures): benzocyclobutenedione