Bio-based synthesis of cyclopentane-1,3-diamine and its application in bifunctional monomers for poly-condensation was written by van Slagmaat, Christian A. M. R.;Noordijk, Jurrie;Monsegue, Luciano G.;Mogensen, Siri;Hadavi, Darya;Han, Peiliang;Quaedflieg, Peter J. L. M.;Verzijl, Gerard K. M.;Alsters, Paul L.;De Wildeman, Stefaan M. A.. And the article was included in Green Chemistry in 2021.Computed Properties of C10H18O2 This article mentions the following:
A novel and green route for the synthesis of cyclopentane-1,3-diamine (CPDA) from hemicellulosic feedstock is established in this work. Through many explorations and optimizations, the single successful multi-step synthesis was found to comprise: (1) the Piancatelli rearrangement of furfuryl alc. to 4-hydroxycyclopent-2-enone (4-HCP), (2) a highly improved isomerization of 4-HCP into cyclopentane-1,3-dione (CPDO) using the Ru Shvo catalyst, (3) conversion of CPDO into cyclopentane-1,3-dioxime (CPDX), and (4) a mild oxime hydrogenation of CPDX over Rh/C to afford the desired CPDA. In addition, diastereomerically pure cis- and trans-isomers of CPDA were reacted with (A) bio-based lactones, and (B) 5-(hydroxymethyl)furfural (HMF) to synthesize novel bifunctional diol monomers with internal amide and imine groups, resp. Monomer 5, derived using 绾?valerolactone (GVL), was successfully applied in the synthesis of polyurethanes. In the experiment, the researchers used many compounds, for example, 5-Hexyldihydrofuran-2(3H)-one (cas: 706-14-9Computed Properties of C10H18O2).
5-Hexyldihydrofuran-2(3H)-one (cas: 706-14-9) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Cyclic esters are called lactones, regardless of whether they are derived from an organic or inorganic acid. One example of an organic lactone is 绾?valerolactone.Computed Properties of C10H18O2
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics