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Efficient Homologation of Aldehydes to 2,4,6-Alkatrienals by means of an α-(1,3-Dioxenylallyl)boronate
31 December 2000 (online)
The α-dioxenyl-allylboronate 4 allows the direct conversion of aldehydes into the 7-hydroxy-2,4-dienals (6). The latter compounds can be dehydrated to 2,4,6-alkatrienals 7 by means of the Burgess reagent or methanesulfonyl anhydride/Hünig Base.
allylboration reaction - polyenals