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Hunsdiecker-type reactions

The preferred reagent for Hunsdiecker-type reactions is lead(IV) acetate in the presence of an inorganic halide.18,19 The yields are usually good to excellent. Reaction of cyclobutanecar-boxylic acid with lead(IV) acetate in the presence of lithium chloride gave chlorocyclobutane (1) in good yield.18 Other carboxylic acids reacted under similar conditions.18 However, care should always be taken when lead(IV) acetate is used, as the use of this reagent in the absence of the halide results in decarboxylative elimination to give an alkene, which is found as a byproduct.19... [Pg.371]

The disodium salt of l-hydroxybenzimidazole-2-carboxylic acid can be decarboxylated merely by heating in acid <88JCS(P1)681>. In a Borodin-Hunsdiecker-type reaction alkaline bromination of 4-... [Pg.162]

Microwave Reactions. Side chain bromination of mono and dimethyl heteroaromatic and aromatic compounds by a solid phase A-bromosuccinimide reaction without radical initiator under microwave conditions was developed. The stereoselective S3mthesis of ( )- 8-arylvinyl bromides by microwave-induced Hunsdiecker-type reaction has also appeared. ... [Pg.124]

Need to ejfect a halodecarboxylation reaction (Hunsdiecker-type chemistry)... [Pg.589]

See other pages where Hunsdiecker-type reactions is mentioned: [Pg.201]    [Pg.105]    [Pg.218]    [Pg.279]    [Pg.201]    [Pg.105]    [Pg.218]    [Pg.279]    [Pg.129]    [Pg.67]   
See also in sourсe #XX -- [ Pg.275 ]



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