27644-04-8Relevant articles and documents
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Hethelyi,E.,Tetenyi,P.
, p. 1847 (1981)
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Allylic Sulfones as Allyl Anion Equivalents: Homoallylic Alcohols from Metal Catalysed Reactions of Sulfones with Aldehydes and Ketones
Clayden, Jonathan,Julia, Marc
, p. 1905 - 1906 (2007/10/02)
Reduction of allylic sulfones with diethylzinc, catalysed by palladium(0), gives nucleophilic organometallic species, which react in situ with carbonyl compounds to give homoallylic alcohols in high yield.
Oxalic acid catalyzed isoprenic coupling: a simple experimental procedure.
Bertrand, M.,Waegell, B.,Zahra, J. P.
, p. 904 - 910 (2007/10/02)
Oxalic acid, which is considered as a mild acid, allows a smooth dehydration- without polymerisation- of 2-methylbut-3-en-2-ol 1 into isoprene with around 46percent yield.The remander of the reaction mixture featuring a nice fragance, consists of a mixture of 25 identified products composed of a set of cyclic and non cyclic ethers, and of monoterpenes.Fourteen products could be isolated by preparative vapor phase chromattography and identified with authentic products by 1H and 13C NMR.The formation of the observed products can be rationalized on the basis of currently admitted reaction mechanisms. Key words: isoprene / isoprene coupling / monoterpenic alcohols