Efficient methodology for the preparation of β-aminotetralin derivatives via electrophilic amination
摘要:
A mild and efficient method for the construction of beta-aryl amines from the corresponding alpha-aryl ketones is presented. The key steps of the synthesis involve an electrophilic amination by dibenzyl azodicarboxylate followed by a stereoselective LiHBEt3 reduction. The reaction sequence is applied to the synthesis of the tricyclic ergoline analogue 4.
Efficient methodology for the preparation of β-aminotetralin derivatives via electrophilic amination
摘要:
A mild and efficient method for the construction of beta-aryl amines from the corresponding alpha-aryl ketones is presented. The key steps of the synthesis involve an electrophilic amination by dibenzyl azodicarboxylate followed by a stereoselective LiHBEt3 reduction. The reaction sequence is applied to the synthesis of the tricyclic ergoline analogue 4.
step of the synthesis was an electrophilic amination of the aromatic ketone 11 followed by reductive degradation when the diethoxymethyl group was employed for protection of the lactam nitrogen and also for the benzylic position 2a. Dopamine and serotonin receptor binding studies revealed 8 to be a potent and selective ligand at the D‐2 autoreceptor (ki = 4.0 nM). Further in vivo studies including the