Total Synthesis of the Racemate of Laurolitsine

The total synthesis of laurolitsine was achieved for the first time. This reaction was accomplished in 14 steps with a 2.3% yield (this was calculated using 3-hydroxy-4-methoxybenzaldehyde as the starting material) starting from two simple materials, 3-hydroxy-4-methoxybenzaldehyde and 2-(3-hydroxy-4-methoxyphenyl)acetic acid, and the longest linear sequence consisted of 11 steps. The key steps included an electrophilic addition reaction in which a nitro group was reduced to an amino group using lithium tetrahydroaluminum and a Pd-catalyzed direct biaryl coupling reaction. In this paper, many of the experimental steps were optimized, and an innovative postprocessing method in which 2-(3-(benzyloxy)-4-methoxyphenyl)ethanamine is salted with oxalic acid was proposed.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:29

Enthalten in:

Molecules (Basel, Switzerland) - 29(2024), 3 vom: 05. Feb.

Sprache:

Englisch

Beteiligte Personen:

Cao, Mingyu [VerfasserIn]
Wang, Yiming [VerfasserIn]
Zhang, Yong [VerfasserIn]
Zhang, Caiyun [VerfasserIn]
Chen, Niangen [VerfasserIn]
Zhang, Xiaopo [VerfasserIn]

Links:

Volltext

Themen:

Aporphine alkaloid
Journal Article
Laurolitsine
Synthetic route
Total synthesis

Anmerkungen:

Date Revised 12.02.2024

published: Electronic

Citation Status PubMed-not-MEDLINE

doi:

10.3390/molecules29030745

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368279774