《Thermoresponsive starch hydrogel stabilized Pd nanoparticles: Soft catalyst for the preparation of (±)-α-methylbiphenylalanine in water aiming at bioorthogonal chemistries》 was written by dos Santos, Raquel V.; Vitoi, Vitor Hugo M.; Costa, Marcio V.; da Silva, Lorenna C. L. L. F.; Archanjo, Braulio S.; Achete, Carlos A.; Silva, Raphael S. F.; Aguiar, Lucia C. S.; Malta, Luiz Fernando B.; Senra, Jaqueline D.. Category: esters-buliding-blocks And the article was included in Catalysis Letters in 2021. The article conveys some information:
The corn-starch was able to reduce Pd(II) species under relatively low concentration (5.0 wt/vol) leading to the formation of a thermoresponsive palladium nanoparticles-containing hydrogel with D = 16.1 nm ± 6.4 nm. It was successfully applied to the Suzuki-Miyaura reaction step in neat water involved in the synthesis of (±)-N-acetyl-α-methyl-4-biphenylalanine Et ester, a direct precursor of an unnatural quaternary biarylalanine. In the experiment, the researchers used Ethyl 2-methyl-3-oxobutanoate(cas: 609-14-3Category: esters-buliding-blocks)
Ethyl 2-methyl-3-oxobutanoate(cas: 609-14-3) belongs to ketone compounds. Ketones are highly reactive, although less so than aldehydes, to which they are closely related. Much of their chemical activity results from the nature of the carbonyl group. Ketones readily undergo a wide variety of chemical reactions.Category: esters-buliding-blocks
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics