Low-Temperature Chemo- and Stereoselective [2+2]-Cyclodimerization of 5-Ethenylidene-4,5-dihydro-1,3-thiazole: An Approach to Unique Derivatives of 1,3-Bis(methylene)cyclobutane was written by Tarasova, O. A.;Nedolya, N. A.;Albanov, A. I.;Trofimov, B. A.. And the article was included in Russian Journal of Organic Chemistry in 2021.Related Products of 2253-73-8 The following contents are mentioned in the article:
An unusual [2+2]-cyclodimerization of 5-ethenylidene-4,5-dihydro-1,3-thiazole, obtained from lithiated methoxyallene, iso-Pr isothiocyanate, and propargylbromide, into highly functionalized 1,3-bis(methylene)cyclobutane is discovered. This study involved multiple reactions and reactants, such as Isopropylisothiocyanate (cas: 2253-73-8Related Products of 2253-73-8).
Isopropylisothiocyanate (cas: 2253-73-8) belongs to esters. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Polyesters are important plastics, with monomers linked by ester moieties. Many esters have the potential for conformational isomerism, but they tend to adopt an s-cis (or Z) conformation rather than the s-trans (or E) alternative, due to a combination of hyperconjugation and dipole minimization effects. The preference for the Z conformation is influenced by the nature of the substituents and solvent, if present. Lactones with small rings are restricted to the s-trans (i.e. E) conformation due to their cyclic structure.Related Products of 2253-73-8
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics