57-11-4, Name is Stearic acid, molecular formula is C18H36O2, belongs to benzisoxazole compound, is a common compound. In a patnet, author is Comanita, E, once mentioned the new application about 57-11-4, Safety of Stearic acid.
Synthesis and reactivity of some Mannich bases. VII. Synthesis of 3-(2-dialkylaminoethyl)-1,2-benzisoxazoles
3-(2-Dialkylaminoethyl)-1,2-benzisoxazoles (2) are accessible by direct cyclization of the corresponding Mannich bases oxime acetates (11) in refluxing benzene in the presence of anhydrous potassium carbonate. The previously known methods for ring closure to 1,2-benzisoxazole were ineffective for this class of pharmacologically relevant compounds.
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Reference:
Benzisoxazole – Wikipedia,
,Benzisoxazole – an overview | ScienceDirect Topics