k 2024

Asymmetric Organocatalyzed Transfer Hydroxymethylation of Isoindolinones Using Formaldehyde Surrogates

ŠVESTKA, David, Pavel BOBÁĽ, Mario WASER and Jan OTEVŘEL

Basic information

Original name

Asymmetric Organocatalyzed Transfer Hydroxymethylation of Isoindolinones Using Formaldehyde Surrogates

Authors

ŠVESTKA, David (203 Czech Republic, belonging to the institution), Pavel BOBÁĽ (703 Slovakia, belonging to the institution), Mario WASER (40 Austria) and Jan OTEVŘEL (203 Czech Republic, belonging to the institution)

Edition

ACS PUBLICATIONS SYMPOSIUM Catalysis for Organic Synthesis, 2024

Other information

Language

English

Type of outcome

Prezentace na konferencích

Field of Study

30104 Pharmacology and pharmacy

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Organization unit

Faculty of Pharmacy

Keywords in English

Enantioselective organocatalysis; Takemoto catalyst; Formaldehyde

Tags

International impact
Změněno: 25/8/2024 22:41, Mgr. David Švestka

Abstract

V originále

We developed a novel process for the asymmetric transfer hydroxymethylation between formaldehyde surrogates and activated isoindolinones. Bench-stable solid formaldehyde surrogates offer many advantages, such as no water presence, better solubility in organic solvents, and superior reactivity over conventionally used aqueous formalin, paraformaldehyde, or trioxane. However, they have never been systematically tested in asymmetric reactions. After the catalysts screening, the selection of the most suitable surrogate, and reaction conditions optimization, the enantioenriched hydroxymethylated adducts were delivered with good to excellent yields (48–96%) and enantiopurities (81:19 – 97:3 e.r). The substrate scope tested on 34 entries showed the considerable generality of the developed asymmetric transformation. A scale-up experiment and multiple enantioselective downstream transformations were also carried out, suggesting the prospective synthetic utility of the products.

Links

MUNI/A/1393/2023, interní kód MU
Name: Enantioselektivní karbonyl-enová reakce trihalogenacetaldehydů
Investor: Masaryk University, Enantioselective carbonyl-ene reaction of trihaloacetaldehydes