Most of the compounds have physiologically active properties, and their biological properties are often attributed to the heteroatoms contained in their molecules, and most of these heteroatoms also appear in cyclic structures. A Journal, Synthesis called An epoxide ring-opening reaction via hypervalent silicate intermediate: Synthesis of statine, Author is Konno, Hiroyuki; Toshiro, Emi; Hinoda, Naoyuki, which mentions a compound: 17190-29-3, SMILESS is N#CCC(O)C1=CC=CC=C1, Molecular C9H9NO, SDS of cas: 17190-29-3.
The azide- and cyanide-opening reaction of epoxide with TBAF and TMSN3 in THF or TBAF and TMSCN in MeCN occurred regioselectively to afford β-hydroxy azides and cyanides in good yield. These hypervalent silicates are highly effective as nucleophilic azide and cyanide donors under mild conditions. This methodol. was applied to the preparation of statine.
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Reference:
Pyrazole – Wikipedia,
Pyrazoles – an overview | ScienceDirect Topics