# Computational Study of the Ir-Catalyzed Formation of Allyl Carbamates from CO2

**Authors:** Sahil Gahlawat, Markus Artelsmair, Abril C. Castro, Per-Ola Norrby, Kathrin H. Hopmann

PMC · DOI: 10.1021/acs.organomet.4c00177 · Organometallics · 2024-08-05

## TL;DR

This paper uses computational methods to study how iridium catalyzes the formation of allyl carbamates from CO2, focusing on the enantioselective reaction pathway.

## Contribution

The study reveals that the rate-determining step differs between (R)- and (S)-pathways in the enantioselective formation of allyl carbamates.

## Key findings

- The reaction involves an initial iridium-allyl formation followed by nucleophilic attack by a carbamate.
- The rate-determining step varies for (R)- and (S)-pathways, affecting enantioselectivity.

## Abstract

We have employed
computational methods to investigate the iridium-catalyzed
allylic substitution leading to the formation of enantioenriched allyl
carbamates from carbon dioxide (CO2). The reaction occurs
in several steps, with initial formation of an iridium-allyl, followed
by nucleophilic attack by the carbamate formed in situ from CO2 and an amine. A detailed isomeric analysis shows that the
rate-determining step differs for the (R)- and (S)-pathways. These insights are essential for understanding
reactions involving enantioselective formation of allyl carbamates
from CO2.

## Linked entities

- **Chemicals:** CO2 (PubChem CID 280), carbamate (PubChem CID 276), amine (PubChem CID 36604)

## Full-text entities

- **Chemicals:** carbamate (MESH:D002219), amine (MESH:D000588), iridium (MESH:D007495), CO2 (MESH:D002245), Allyl Carbamates (MESH:C034650), iridium-allyl (-)

## Full text

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## Figures

7 figures with captions in the complete paper: https://tomesphere.com/paper/PMC11388460/full.md

## References

52 references — full list in the complete paper: https://tomesphere.com/paper/PMC11388460/full.md

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Source: https://tomesphere.com/paper/PMC11388460