Preparation of Benzolactams by Pd(OAc)2-Catalyzed Direct Aromatic Carbonylation
摘要:
We developed a new method for Pd(II)-catalyzed direct aromatic carbonylation in a phosphine-free catalytic system using Pd(OAc)2 and Cu(OAc)2 in an atmosphere of CO gas containing air. The carbonylation proceeded with ortho-palladation, inducing a remarkable site selectivity to afford a variety of five- or six-membered benzolactams from secondary omega-arylalkylamines, such as N-alkylbenzylamines or N-alkylphenethylamines.
[EN] TRYPTAMINE COMPOSITIONS FOR ENHANCING NEURITE OUTGROWTH<br/>[FR] COMPOSITIONS DE TRYPTAMINES DESTINÉES À AMÉLIORER L'EXCROISSANCE DES NEURITES
申请人:STAMETS PAUL EDWARD
公开号:WO2021101926A1
公开(公告)日:2021-05-27
Described herein are neurotrophic and nootropic compositions and methods for treating subjects with such compositions. In one aspect the composition comprises one or more tryptamines or in pure form or extracts from psilocybin containing mushrooms, or combinations thereof optionally combined with one or more phenethylamines or amphetamines in pure form or extracts from a plant or mushroom, or combinations thereof, optionally one or more erinacines or hericenones in pure form, extracts from Hericium mushroom species (e.g., H. erinaceus, H. coralloides, H. ramosum) or combinations thereof, optionally one or more cannabinoids in pure form or extracts from Cannabis sativa, Cannabis sativa, Cannabis indica, or Cannabis ruderalis, optionally, one or more adversive compounds, and optionally one or more pharmaceutically acceptable excipients.
Pd(OAc)<sub>2</sub>-Catalyzed Carbonylation of Amines
phenethylamine derivatives, underwent a direct aromatic carbonylation to afford five- or six-membered benzolactams. In the carbonylation, the chelation effect or steric repulsion between Pd(II) and the meta-substituent in the ortho-palladation and the ring sizes of cyclopalladation products that were formed prior to carbonylation were found to generate good site selectivity and increase the reaction rate. In
We developed a new method for Pd(II)-catalyzed direct aromatic carbonylation in a phosphine-free catalytic system using Pd(OAc)2 and Cu(OAc)2 in an atmosphere of CO gas containing air. The carbonylation proceeded with ortho-palladation, inducing a remarkable site selectivity to afford a variety of five- or six-membered benzolactams from secondary omega-arylalkylamines, such as N-alkylbenzylamines or N-alkylphenethylamines.