title: Thermal rearrangement of 2,2,4,4-tetramethylthietan-3-one 1-oxide; a reaction related to the ring expansion of the penicillin S-oxides.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D003499:Cyclic S-Oxides; D006358:Hot Temperature; D010406:Penicillins
chemical_list: D003499:Cyclic S-Oxides; D010406:Penicillins