The Gabriel synthesis is generalized as monoalkylation of an ammonia or primary amine derivative with subsequent removal of the derivatizing group(s) from nitrogen. Two new derivatives for this purpose are introduced: phenacylsulfonamides and triflamides, with discussion of their generality and effectiveness.
Synthesis of conformationally restricted glutamate and glutamine derivatives from carbonylation of orthopalladated phenylglycine derivatives
作者:Esteban P Urriolabeitia、Eduardo Laga、Carlos Cativiela
DOI:10.3762/bjoc.8.179
日期:——
(2)) (2a-j) (Nu = OR, NHR, NR(2)). Compounds 2a-j are conformationallyrestrictedanalogues of glutamic acid and glutamine and are interesting due to their biological and pharmacological properties. The reaction of [Pd(mu-Cl)(C(6)H(4)(CH(CO(2)Me)NHTf)-2)](2) (3) with nucleophiles in a CO atmosphere results, however, in the formation of the cyclic isoindolinone or the open 2-carboxyphenylglycine methyl
Intermolecular Radical C(sp
<sup>3</sup>
)−H Amination under Iodine Catalysis
作者:Alexandra E. Bosnidou、Kilian Muñiz
DOI:10.1002/anie.201901673
日期:2019.5.27
The direct amination of aliphatic C−H bonds has remained one of the most tantalizing transformations in organic chemistry. Herein, we report on a unique catalyst system, which enables the elusive intermolecular C(sp3)−H amination. This practical synthetic strategy provides access to aminated building blocks and fosters innovative multiple C−Hamination within a new approach to aminated heterocycles