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Preliminary results on the enantioselective formation of sulfur and nitrogen mediumsized heterocycles by base-induced ring opening of hetero-oxabicyclic [3.2.1] and [3.3.1] systems have been reported.91 The reaction involves a deprotonation-C—O bond elimination sequence. The kinetics and mechanism of gas-phase unimolecular elimination reactions of some substituted aminoazoles have been studied as an aid to heterocycle synthesis.92... [Pg.385]

See other pages where Oxabicyclic systems, hetero eliminative ring opening is mentioned: [Pg.412] [Pg.121]

See also in sourсe #XX -- [ Pg.412 ]

See also in sourсe #XX -- [ Pg.412 ]

See also in sourсe #XX -- [ Pg.98 , Pg.412 ]