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Lactones, reaction with LiAlH

Reactions.- Crown lactones are reduced to the corresponding crown ether on reaction with LiAlH at 0°C. The procedure may allow the synthesis of crown ethers which are inaccessible by the Williamson ether synthesis. The reduction of 2,6-pyrido-18-crown-6 N-oxide by (CH CHCHgCH BH appears to involve a single electron transfer as the rate-determining step, followed by transfer of a... [Pg.470]

In uncontrolled reductions, lactones are reduced by lithium trialkyoxyaluminum hydrides to diols but the reduction with LiAlH(OBu )3 is very slow and advantage can be taken of this to stop the reaction at... [Pg.268]

See other pages where Lactones, reaction with LiAlH is mentioned: [Pg.1303]    [Pg.205]    [Pg.585]    [Pg.65]    [Pg.176]    [Pg.251]    [Pg.77]    [Pg.242]    [Pg.192]    [Pg.109]   
See also in sourсe #XX -- [ Pg.4 , Pg.890 ]



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Lactones reactions

Lactones, reaction with

LiAlH

Reaction lactonization

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