Stojanovic, Milovan published the artcileSynthesis of thiazolidine-fused heterocycles via exo-mode cyclizations of vinylogous N-acyliminium ions, COA of Formula: C5H10O2S, the publication is Organic & Biomolecular Chemistry (2012), 10(3), 575-589, database is CAplus and MEDLINE.
Syntheses of thiazolidine-fused heterocycles via exo-mode cyclizations of vinylogous N-acyliminium ions incorporating heteroatom-based nucleophiles have been examined and discussed. The formation of (5,6)-membered systems was feasible with all nucleophiles tried (O, S and N), while the closing of the five-membered ring was restricted to O- and S-nucleophiles. The closure of a four-membered ring failed. Instead, the bicyclic (5,6)-membered acetal derivative and the tricyclic system with an eight-membered central ring were obtained from the substrates containing O and S nucleophilic moieties, resp. The reaction outcome and stereochem. are rationalized using quantum chem. calculations at B3LYP/6-31G(d) level. The exclusive cis-stereoselectivity in the formation of (5,6)- and (5,5)-membered systems results from thermodn. control, whereas the formation of the eight-membered ring was kinetically controlled.
Organic & Biomolecular Chemistry published new progress about 19788-49-9. 19788-49-9 belongs to esters-buliding-blocks, auxiliary class Thiol,Aliphatic hydrocarbon chain,Ester, name is Ethyl 2-mercaptopropanoate, and the molecular formula is C13H17BF3NO2, COA of Formula: C5H10O2S.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics