Synthesis and Catalytic Properties of a Very Latent Selenium-Chelated Ruthenium Benzylidene Olefin Metathesis Catalyst

Title	Synthesis and Catalytic Properties of a Very Latent Selenium-Chelated Ruthenium Benzylidene Olefin Metathesis Catalyst
Authors	Louis Monsigny, Joel Cejas Sánchez, Jakub Piątkowski, Anna Kajetanowicz, Karol Grela
Magazine	Organometallics
Date	10/25/2021
DOI	10.1021/acs.organomet.1c00484
Introduction	This study details the synthesis, characterisation, and catalytic properties of a cis-dichlorido seleno-chelated Hoveyda–Grubbs type complex (Ru8). The complex is synthesised via a straightforward and efficient three-step process starting from 2-bromobenzaldehyde, achieving a good overall yield of 54%. The catalytic profile, particularly the latency, was evaluated through olefin metathesis reactions such as ring-closing metathesis (RCM), self-cross-metathesis (self-CM), and ring-opening metathesis polymerisation (ROMP). Notably, the selenium Hoveyda-type complex Ru8 demonstrates switchable behaviour under thermal activation. Unlike its sulphur-chelated counterpart, which requires heat for activation, the selenium analogue is active under both heat and light irradiation.
Quote	Louis Monsigny, Joel Cejas Sánchez and Jakub Piątkowski et al. Synthesis and Catalytic Properties of a Very Latent Selenium-Chelated Ruthenium Benzylidene Olefin Metathesis Catalyst. Organometallics. 2021. Vol. 40(21):3608-3616. DOI: 10.1021/acs.organomet.1c00484
Element	Selenium (Se) , Ruthenium (Ru)
Industry	Chemical & Pharmacy

You have successfully subscribed! Check your inbox soon to receive great emails from this sender.

NEED HELP?