Dzambaski, Zdravko published the artcile2-Alkylidene-4-oxothiazolidine S-oxides: synthesis and stereochemistry, Safety of Ethyl 2-mercaptopropanoate, the publication is Tetrahedron (2013), 69(31), 6436-6447, database is CAplus.
A series of 5-unsubstituted and 5-substituted 2-alkylidene-4-oxothiazolidine-S-oxides were synthesized by the sulfur-oxidation with m-CPBA. The stereochem. of 5-substituted sulfoxides was determined by means of NMR spectroscopy and DFT theor. calculations It was found that the thermodynamically less stable anti-isomer was initially formed in the course of the oxidation, but it underwent epimerization to the mixture enriched in the more stable syn-isomer, during the work-up process. The higher stability of syn-isomers is ascribed to the stronger hyperconjugative σC-H→σ*S-O interaction vs. the weaker σC-C→σ*S-O delocalization in their anti-counterparts and to the existence of intramol. 1,5-CH···O hydrogen bonds.
Tetrahedron 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 C5H10O2S, Safety of Ethyl 2-mercaptopropanoate.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics