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

Autor:	Joel Cejas Sánchez, Anna Kajetanowicz, Jakub Piątkowski, Karol Grela, Louis Monsigny
Rok vydání:	2021
Předmět:	Organic Chemistry chemistry.chemical_element ROMP Metathesis Combinatorial chemistry Article Catalysis Ruthenium Inorganic Chemistry Polymerization chemistry Yield (chemistry) Chelation Physical and Theoretical Chemistry Selenium
Zdroj:	Organometallics
ISSN:	1520-6041 0276-7333
Popis:	Herein, we describe a study of the synthesis, characterization, and catalytic properties of a cis-dichlorido seleno-chelated Hoveyda–Grubbs type complex (Ru8). Such a complex has been obtained through a straightforward and high-yielding synthetic protocol in three steps from the commercially available 2-bromobenzaldehyde in good overall yield (54%). The catalytic profile, especially the latency of this complex, has been probed through selected olefin metathesis reactions such as ring-closing metathesis (RCM), self-cross-metathesis (self-CM) and ring-opening metathesis polymerization (ROMP). In addition to its high latency, the selenium Hoveyda-type complex Ru8 exhibits a switchable behavior upon thermal activation. Of interest, while the corresponding sulfur-chelated Hoveyda type catalyst is reported to be only activated by heat, the selenium analogue was found to be active upon both heat and light irradiation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e1f73565e9cab0a9b549e35ba5dec19b https://doi.org/10.1021/acs.organomet.1c00484 Zobrazit plný text záznamu