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Enynes carbomagnesiation

Chromium salts can catalyze the carbomagnesiation reactions of 1,6-enynes with cy-clization (Scheme 12) . This reaction is probably initiated by carbometalation of the alkyne unit. The resultant organomagnesium species 16 undergoes further functionalization upon treatment with various electrophiles (Scheme 12) . ... [Pg.636]

When enyne alcohol 57 is subjected to awf/-carbomagnesiation using vinyhnagnesium chloride, the resultant triene 58 undergoes further electrocyclization (Scheme 32). ... [Pg.647]

Scheme 10.22 Copper-catalyzed regioselective carbomagnesiation of enynes 74 with branched alkyl Grignard s reagents [22]. Scheme 10.22 Copper-catalyzed regioselective carbomagnesiation of enynes 74 with branched alkyl Grignard s reagents [22].
Scheme 10 6 Synthesis of conjugated trienes by carbomagnesiation of enyne propargylic alcohols and ethers [71],... Scheme 10 6 Synthesis of conjugated trienes by carbomagnesiation of enyne propargylic alcohols and ethers [71],...
Scheme 10.91 Carbomagnesiation of enynes bearing perfluoroalkyl chains [75]. Scheme 10.91 Carbomagnesiation of enynes bearing perfluoroalkyl chains [75].
See other pages where Enynes carbomagnesiation is mentioned: [Pg.875]    [Pg.877]    [Pg.19]    [Pg.15]    [Pg.777]    [Pg.825]    [Pg.827]    [Pg.328]   
See also in sourсe #XX -- [ Pg.875 , Pg.877 ]

See also in sourсe #XX -- [ Pg.4 ]

See also in sourсe #XX -- [ Pg.4 ]



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Carbomagnesiation

Enynes

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