Chemoselectivity in the rhodium(II) acetate catalysed decomposition of α-diazo-β-keto-γ,δ-alkenyl-δ-aryl compounds: Aromatic C-H insertion reaction or Wolff rearrangement-electrocyclization
The rhodium(II) acetate catalysed decomposition of α-diazo-β-keto-γ,δ-alkenyl phosphonates 1 substituted in the δ-position by an aryl group gave rise to mixtures of isomeric hydroxynaphthalenephosphonates, 3 resulting from a Wolff rearrangement-electrocyc
Collomb, Didier,Chantegrel, Bernard,Deshayes, Christian
p. 10455 - 10472
(2007/10/03)
RHODIUM(II) ACETATE-CATALYZED REACTION OF ETHYL 2-DIAZO-3-OXOPENT-4-ENOATES: SIMPLE ROUTES TO 4-ARYL-2-HYDROXY-1-NAPHTHOATES AND β,γ-UNSATURATED ESTERS. THE DIANION OF ETHYL 4-(DIETHYLPHOSPHONO)ACETOACETATE AS A PROPIONATE EQUIVALENT
Rhodium(II) acetate-catalyzed decomposition of ethyl 2-diazo-3-oxopent-4-enoates results in the formation of either 4-aryl-2-hydroxy-naphthoates or β,γ-unsaturated esters.In the latter transformation, the dianion of 4-(diethylphosphono)acetoacetate functi
Taylor, Edward C.,Davies, Huw M. L.
p. 5453 - 5456
(2007/10/02)
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