Most of the natural products isolated at present are heterocyclic compounds, so heterocyclic compounds occupy an important position in the research of organic chemistry. A compound: 32717-95-6, is researched, SMILESS is C12=C(CCC3=C4CC2)[Cu+]1534[Cl-][Cu+]678(C9=C6CCC7=C8CC9)[Cl-]5, Molecular C16H16Cl2Cu2Journal, Article, Angewandte Chemie, International Edition called Oxazepine Synthesis by Copper-Catalyzed Intermolecular Cascade Reactions between O-Propargylic Oximes and Dipolarophiles, Author is Nakamura, Itaru; Kudo, Yu; Terada, Masahiro, the main research direction is oxime propargylic diastereoselective cascade dipolarophile copper catalyst; oxazepine alkylidene diastereoselective synthesis; copper; cycloaddition; heterocycles; rearrangement; synthetic methods.Reference of Chloro(1,5-cyclooctadiene)copper(I) dimer.
Oxazepines I [R1 = n-Pr, cyclohexyl, Ph, 4-F3CC6H4, 4-MeOC6H4; R2 = n-Pr, Me3SiCH2, Ph, 4-MeOC6H4, 4-F3CC6H4; R3 = H, 4-F3CC6H4; R5 = H, R4R6 = C(O)NR7C(O), R7 = H, Me, t-Bu, Ph, etc.; R4 = H, R5 = R6 = MeO2C, i-PrO2C; etc.] were efficiently prepared from O-propargylic oximes II and dipolarophiles R4R5C:CHR6 via copper-catalyzed cascade reactions which proceed through a 2,3-rearrangement, [3 + 2] cycloaddition, and subsequent 1,3-oxygen migration. The process involves the cleavage of C-O and N-O bonds.
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Reference:
Quinoxaline – Wikipedia,
Quinoxaline | C8H6N2 | ChemSpider