86212-97-7

Upstream product

• 86212-92-2 6-tert-Butyl-2-methyl-4-oxo-4H-3,1-benzoxathiin-8-carbonsaeure 
• 86213-06-1 6-tert-Butyl-2-methyl-4-oxo-4H-3,1-benzoxathiin-8-carbonylchlorid 
• 100-61-8 N-methylaniline 

Downstream Products

• 75-07-0 acetaldehyde 
• 86212-64-8 5-tert-Butyl-N-methyl-3-oxo-N-phenyl-3H-2,1-benzoxathiol-7-carboxamid 
• 86213-11-8 6-tert-Butyl-N,2-dimethyl-4-oxo-N-phenyl-4H-3,1-benzoxathiin-8-carboxamid-1,1-dioxid 

Relevant academic research and scientific papers

Cyclic Sulfenylcarboxylates from 4H-3,1-Benzoxathiin-4-one 1-Oxides. A New Ring Contraction Reaction

4H-3,1-Benzoxathiin-4-one 1-oxides 4 eliminate aldehydes on heating.Corresponding to the substituent in 8-position, ring contraction occurs to give 3H-2,1-benzoxathiol-3-ones 2 or 3H-1,2-benzisothiazol-3-ones 8.The dependance on the substituents and the mechanism of the reaction are discussed.