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Undecene

Entry 4 involves nitrogen participation and formation of an iminium ion that is reduced by NaBH4. The reaction in Entry 5 creates an 11-methylenebicyclo[4.3.1]undecen-3-one structure found in a biologically active natural product. Note that this fragmentation creates a bridgehead double bond. Entry 6 involves construction of a portion of the taxol structure. The reaction in Entry 7 is stereospecific, leading to the E-double bond. [Pg.902]

C11H10 C11H10 C11H1402 C11H22 C11H22 C11H24 1- METHYLNAPHTHALENE 2- METHYLNAPHTHALENE BUTYL BENZOATE N-HEXYLCYCLOPENTANE 1-UNDECENE N-UNDECANE... [Pg.954]

Another synthetic route via the Beckmann rearrangement, which is promoted by organoaluminum reagent along with alkylation, involves a new stereoselective reduction of the imino group. The starting oxime sulfonate (228) was synthesized from cyclopentanone (226) in three steps Reaction of 226 with 1-undecene in the presence of silver oxide produced the a-undecylcyclopentanone (227) which on successive treatment with hydroxylamine and methanesulfonyl chlo-ride-triethylamine gave the mesylate (228). Treatment of the oxime mesylate... [Pg.242]

Scheme 9. Reaction conditions i, 1-undecene, Ag20 ii, 130°C, 5 hr iii, NH2OH iv, MsCl-Et3N V, MejAl vi, NaF-H20 vii, LiAlH4-Me3Al. Scheme 9. Reaction conditions i, 1-undecene, Ag20 ii, 130°C, 5 hr iii, NH2OH iv, MsCl-Et3N V, MejAl vi, NaF-H20 vii, LiAlH4-Me3Al.
See other pages where Undecene is mentioned: [Pg.415]    [Pg.488]    [Pg.527]    [Pg.581]    [Pg.689]    [Pg.1037]    [Pg.435]    [Pg.436]    [Pg.383]    [Pg.385]    [Pg.924]    [Pg.172]    [Pg.340]    [Pg.684]    [Pg.757]    [Pg.796]    [Pg.850]    [Pg.958]    [Pg.21]    [Pg.47]    [Pg.74]    [Pg.102]    [Pg.129]    [Pg.167]    [Pg.193]    [Pg.46]    [Pg.444]    [Pg.444]    [Pg.321]    [Pg.1012]    [Pg.91]    [Pg.91]    [Pg.459]    [Pg.444]    [Pg.444]    [Pg.192]    [Pg.726]    [Pg.24]    [Pg.526]    [Pg.526]    [Pg.391]    [Pg.603]    [Pg.635]    [Pg.648]   
See also in sourсe #XX -- [ Pg.4 ]

See also in sourсe #XX -- [ Pg.376 ]

See also in sourсe #XX -- [ Pg.292 ]



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2- Undecen

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