Kinetic studies of fluorinated aryl molybdenum(ii) tricarbonyl precursors in epoxidation catalysis

Abstract

Benzyl substituted molybdenum tricarbonyl complexes displaying CF3 groups are synthesized and applied as catalyst precursors in olefin epoxidation reactions.

Recent Progress in Application of Molybdenum-Based Catalysts for Epoxidation of Alkenes

“…Antunes et al [27] designed and prepared the complex (Htrz) 2 [Mo 3 O 6 (O 2 ) 4 (trz) 2 ]•H 2 O, which isolated from the reaction of MoO 3 and H 2 O 2 with the usage of 1,2,4-triazole(trz) and was employed in a model epoxidation reaction with cis-cyclooctene. In order to improve the reactivity of catalysts, Reich's group [28] attached fluorinated moieties to molybdenum tricarbonyl complexes by enhancing Lewis activity through a more electron deficient Mo atom. Arylated molybdenum tricarbonyl complexes were modified through varying the number and position of CF 3 group(s) on a benzyl moiety connected to a CpMo(CO) 3 entity.…”

Application of first-row transition metal complexes bearing 1,2,3-triazolylidene ligands in catalysis and beyond

“…The TOF in the first 10 s of the reaction is very high, 41 000 h −1 , and similar to benchmark catalysts. 94,95…”

Chiral‐at‐Molybdenum – A Computational Study on N‐Substituted cis‐MoO2(nacnac)2

“…Epoxides are important organic synthons and valuable industrial feedstock [1–4] that are often generated by methyltrioxorhenium (MTO)‐catalyzed epoxidation of alkenes, [5] whereas molybdenum‐based catalysts are much cheaper, employ mild reaction conditions, [6] and tolerate different olefinic functional groups [7,8] . The interest in oxomolybdenum complexes can be traced back to the Halcon and Arco industrial processes where homogenous Mo(CO) 6 serves as a precatalyst for propylene oxide production [9,10] .…”