BIARYL LIGANDS FOR TRANSITION METAL-CATALYZED REACTIONS
申请人:The Regents of the University of California
公开号:US20180117574A1
公开(公告)日:2018-05-03
In one embodiment, the present application discloses ligands of the formula A, wherein the variables are as described herein, and methods for using the ligands in cross-coupling reactions in organic and polar media:
[EN] BIARYL LIGANDS FOR TRANSITION METAL-CATALYZED REACTIONS<br/>[FR] LIGANDS BIARYLE POUR DES RÉACTIONS CATALYSÉES PAR DES MÉTAUX DE TRANSITION
申请人:UNIV CALIFORNIA
公开号:WO2018081672A1
公开(公告)日:2018-05-03
In one embodiment, the present application discloses ligands of the formula (A), wherein the variables are as described herein, and methods for using the ligands in cross-coupling reactions in organic and polar media.
EvanPhos: a ligand for ppm level Pd-catalyzed Suzuki–Miyaura couplings in either organic solvent or water
作者:Evan B. Landstrom、Sachin Handa、Donald H. Aue、Fabrice Gallou、Bruce H. Lipshutz
DOI:10.1039/c8gc01356j
日期:——
be constructed in only two steps. It complexes Pd(OAc)2 forming a precursor of a very active catalyst useful for Suzuki–Miyaura cross-couplings of functionalized substrates. By a combination of pre-activation, used together with the uncommon solvent EtOAc, the resulting catalyst system is effective at loadings in the ppm (0.1–0.5 mol%) range with highly functionalized reaction partners. Similar reactions
To provide an excellent agent for preventing or treating dementia and schizophrenia based on serotonin 5-HT
5A
receptor regulating action, it was found that a tetrahydroisoquinoline derivative characterized by a structure in which an acylguanidino group binds to a N atom of a tetrahydroisoquinoline ring or the like, and a cyclic group binds to an unsaturated ring has a potent 5-HT
5A
receptor regulating action and an excellent pharmacological action based on the regulating action and also discovered that the tetrahydroisoquinoline derivative is useful as an agent for treating or preventing dementia, schizophrenia, and the like, whereby the present invention has been completed.