Wang, Zhanguo published the artcileParallel solution-phase synthesis of 4H-benzo[1,4]thiazin-3-one and 1,1-dioxo-1,4-dihydro-2H-1λ6-benzo[1,4]thiazin-3-one derivatives from 1,5-difluoro-2,4-dinitrobenzene, SDS of cas: 19788-49-9, the publication is Journal of Combinatorial Chemistry (2007), 9(4), 652-660, database is CAplus and MEDLINE.
This paper discusses the synthesis of privileged structures 4H-benzo[1,4]thiazin-3-one and 1,1-dioxo-1,4-dihydro-2H-1λ6-benzo[1,4]thiazin-3-one derivatives in a parallel solution-phase manner using 1,5-difluoro-2,4-dinitrobenzene. Each scaffold possesses four diversity points. A cheap and efficient oxidant, urea-hydrogen peroxide (UHP), was applied for the introduction of the sulfone group. The intramol. cyclization to 1,1-dioxo-1,4-dihydro-2H-1λ6-benzo[1,4]thiazin-3-one was achieved by microwave assistance or the use of an inorganic base.
Journal of Combinatorial 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 C6H4ClNO2, SDS of cas: 19788-49-9.
Referemce:
https://en.wikipedia.org/wiki/Ester,
Ester – an overview | ScienceDirect Topics