Barham, Alexander’s team published research in Organometallics in 2021 | CAS: 4755-77-5

Ethyl oxalyl monochloride(cas: 4755-77-5) belongs to acyl chlorides. Lacking the ability to form hydrogen bonds, acyl chlorides have lower boiling and melting points than similar carboxylic acids. For example, acetic acid boils at 118 °C, whereas acetyl chloride boils at 51 °C. Like most carbonyl compounds, infrared spectroscopy reveals a band near 1750 cm�.Product Details of 4755-77-5

Product Details of 4755-77-5In 2021 ,《Isomerization-Induced Multiple Reaction Pathways in Platinum-Catalyzed C-H Acylation Reaction of 2-Aryloxypyridinesã€?appeared in Organometallics. The author of the article were Barham, Alexander; Neu, Justin; Canter, Cathleen L.; Pike, Robert D.; Li, Yumin; Huo, Shouquan. The article conveys some information:

In Pt-catalyzed C-H acylation of 2-(2-methylphenoxy)pyridine (L1) with Et chlorooxoacetate to produce Et 2-(3-methyl-2-(pyridin-2-yloxy))phenyl-2-oxoacetate (L2), possible reaction steps involved in the catalytic cycle were studied, which include the ligand exchange of precatalysts cis- and trans-Pt(PhCN)2Cl2 with L1, the intramol. C-H activation (cyclometalation) of cis- and trans-Pt(L1)2Cl2 (1), and the acylation of the trans-cyclometalated Pt complex (trans-2) formed from the C-H activation reaction. The cis coordination compounds including the intermediate Pt complexes showed much higher reactivity toward the ligand exchange and the C-H activation than their trans isomers. Consequently, the cis isomers exhibit higher catalytic activity in the C-H acylation reaction. Although the C-H activation of cis- and trans-Pt(L1)2Cl2 produces trans-2, the cis isomer (cis-2) is very likely formed in the C-H activation of cis-Pt(L1)2Cl2 but undergoes isomerization to the more stable trans-2. Probably the fast reaction pathway via all cis-Pt complexes may be responsible for the efficient catalytic reaction, but isomerization of cis-2 to trans-2 could be highly competitive. The acylation of the trans-cycloplatinated complex produces both cis- and trans-Pt complexes Pt(L1)(L2)Cl2. The regaining of the cis-Pt complex revives the catalytic cycle. After reading the article, we found that the author used Ethyl oxalyl monochloride(cas: 4755-77-5Product Details of 4755-77-5)

Ethyl oxalyl monochloride(cas: 4755-77-5) belongs to acyl chlorides. Lacking the ability to form hydrogen bonds, acyl chlorides have lower boiling and melting points than similar carboxylic acids. For example, acetic acid boils at 118 °C, whereas acetyl chloride boils at 51 °C. Like most carbonyl compounds, infrared spectroscopy reveals a band near 1750 cm�.Product Details of 4755-77-5

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Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics