Schank, Kurt published an article in 1970, the title of the article was Base catalyzed rearrangement of α-acetoxy-β-oxosulfones. Signs for the intermediate existence of valence tautomeric α-acetoxyketenes.Category: esters-buliding-blocks And the article contains the following content:
Deprotonation of RCOCH(OAc)SO2R1 with tertiary bases leads to the formation of the shortlived intermediates RCOC-(OAc)SO2R1 ⇌ RC(O-):C(OAc)SO2R1 (I), which were trapped by azo coupling with p-N2+C6H4Cl to give RCO(AcO)C(SO2R1)N:NC6H4Cl-p (where R = Ph, C6H4CH:CH, p-MeOC6H4, or p-O2NC6H4 and R1 = Ph or p-MeC6H4). In inert solvents the tautomeric anions I undergo a fast acyl migration followed by elimination of RSO2-. The formation of the very reactive R(AcO)C:CO (II) is assumed, which can react with RSO2- in a known manner at the O atom or, depending on the p-substituents in II, can lead to the formation of p-O2NC6H4CH(OAc)SO2R (where R = Ph or p-MeC6H4) via valence tautomers of II. The experimental process involved the reaction of tert-Butyl 2-(4-nitrophenyl)acetate(cas: 29704-38-9).Category: esters-buliding-blocks
The Article related to acetoxy oxo sulfones rearrangement mechanism, oxo acetoxy sulfones rearrangement mechanism, sulfones acetoxy oxo rearrangement mechanism, rearrangement mechanism acetoxy oxo sulfones and other aspects.Category: esters-buliding-blocks
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics