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Carboxylic acids conversion synthesis from anions with

As outlined in Scheme 28, the synthesis of the P-ketophosphonate 131 began with a one-pot anh -aldol/reduction step between ethyl ketone 101 and aldehyde 133, giving the 1,3-syn diol 134 (>30 ldr) [130, 132-136, 145, 146], The diol 134 was then converted into the carboxylic acid 135 in six steps. Completion of the subunit 131 required conversion into the acid chloride and reaction with the lithium anion of methyl-(di-l,l,l-trifluoroethyl)-phosphonate. The C9-C24 aldehyde 132 was prepared in two steps from 136, an intermediate from previous routes [55-58], The Still-Gennari-type coupling of 131 and 132 was readily achieved via treatment with... [Pg.41]


See other pages where Carboxylic acids conversion synthesis from anions with is mentioned: [Pg.47]    [Pg.18]    [Pg.150]    [Pg.37]    [Pg.911]    [Pg.340]    [Pg.20]    [Pg.105]    [Pg.113]    [Pg.658]    [Pg.133]    [Pg.413]    [Pg.11]   
See also in sourсe #XX -- [ Pg.2 , Pg.49 , Pg.64 , Pg.200 ]




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Carboxylate anions synthesis

Carboxylate, synthesis

Carboxylic acid anions

Carboxylic acids carboxylate anions

Carboxylic acids synthesis from

Carboxylic conversion

Carboxylic synthesis

From carboxylic acids

Synthesis anionic

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