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Unexpected site selectivity in the reaction of halotrimethylsilane with 2,5-dimethoxytetrahydrofuran and 2,6-dimethoxytetrahydropyran

✍ Scribed by T.H. Chan; S.D. Lee


Publisher
Elsevier Science
Year
1983
Tongue
French
Weight
196 KB
Volume
24
Category
Article
ISSN
0040-4039

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✦ Synopsis


tl&otitihy&tiieane c,&aven 2,5&mtihoxy~tiy&o~tian and 2,6-dimethoxyttihyd.topytan ukth hing opening CO&JUVL~ Ro exthapoLtion @om the monomtihoxy compound3.


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## Abstract 2‐Formyl‐2__H__‐azirine‐__N__‐arylimines 1a‐c react with diphenylketene 2 to afford 2__H__‐2‐azirinyl‐2‐azetidi‐nones 3a‐c and __N__‐aryldiphenylacetamides 4a‐c by reaction at the exo‐imine group. Derivatives containing the bulkier methyl group at the 2‐position, 1d‐f, produce only 4a‐c