167300-01-8Relevant articles and documents
Palladium-Catalyzed C(sp3)-H Arylation of N-Boc Benzylalkylamines via a Deprotonative Cross-Coupling Process
Hussain, Nusrah,Kim, Byeong-Seon,Walsh, Patrick J.
, p. 11010 - 11013 (2015)
Diarylmethylamines are key intermediates and products in the pharmaceutical industry. Herein we disclose a novel method toward the synthesis of these important compounds via C-H functionalization. Presented is a reversible deprotonation of N-Boc benzylalkylamines at the benzylic C-H with in situ arylation by a NiXantPhos-based palladium catalyst (50-93 % yield, 29 examples). The method is also successful with N-Boc-tetrahydroisoquinolines. The advantages of this method are it avoids strong bases, low temperatures, and the need to transmetallate to main group metals for the coupling. Skipping steps! Diarylmethylamines are key intermediates and products in the pharmaceutical industry. A novel method toward the synthesis of these important compounds via C-H functionalization is reported. A reversible deprotonation of N-Boc benzylalkylamines at the benzylic C-H is coupled with in situ arylation with a (NiXantPhos)Pd-based catalyst (50-93 % yield, 29 examples). The advantages of this method are that it avoids strong bases, low temperatures, and the need to transmetallate to main group metals for the coupling.
Selective Monomethylation of Amines with Methanol as the C1 Source
Choi, Geunho,Hong, Soon Hyeok
, p. 6166 - 6170 (2018/04/30)
The N-monomethyl functionality is a common motif in a variety of synthetic and natural compounds. However, facile access to such compounds remains a fundamental challenge in organic synthesis owing to selectivity issues caused by overmethylation. To address this issue, we have developed a method for the selective, catalytic monomethylation of various structurally and functionally diverse amines, including typically problematic primary aliphatic amines, using methanol as the methylating agent, which is a sustainable chemical feedstock. Kinetic control of the aliphatic amine monomethylation was achieved by using a readily available ruthenium catalyst at an adequate temperature under hydrogen pressure. Various substrates including bio-related molecules and pharmaceuticals were selectively monomethylated, demonstrating the general utility of the developed method.
New synthesis of tic-hydantoins sigma-1 ligands and pharmacological evaluation on cocaine-induced stimulant effects
Toussaint,Debreu-Fontaine,Maurice,Melnyk
experimental part, p. 355 - 373 (2011/09/13)
Activation of the newly identified σ1 chaperone protein is involved in several aspects of the psychostimulant and addictive effects of cocaine. The development of ligands that selectively target the σ1 protein may lead to putative potent anti-cocaine agen
