6611-92-3Relevant articles and documents
SYNTHESE D'ACETOACETALDEHYDES MONO- ET DI-SUBSTITUES PAR DES CHAINES FONCTIONNALISEES
Cartier, Dominique,Levy, Jean
, p. 5295 - 5304 (2007/10/02)
These synthons, which are useful in the synthesis of indole alkaloids, were prepared through alkylation of enone 4 and further ozonolysis, after eventual protection in the form of dioxolane derivatives.
Synthesis of Chloromethylvinylcyclopropanecarboxylic Acid Derivatives
Muramatsu, Shigeki,Nakada, Yasuo,Ide, Junya
, p. 751 - 760 (2007/10/02)
The compound 3-(2-chloro-1-propenyl)-2,2-dimethylcyclopropanecarboxylate, which is a hybrid structure of naturally occuring chrysanthemic acid and dichlorovinylcyclopropanecarboxylate, was synthesized from several intermediates: (i) 5-methyl-4-hexen-2-one ethylene ketal (8), (ii) 2-methyl-5,5-dichloro-2-hexene (24), (iii) 5-methyl-2-chloro-2,4-hexadiene (27), (iv) ethyl 4,6-dichloro-3,3-dimethyl-5-heptenoate (35).
BASENINDUZIERTE RINGOEFFNUNG VON 1,3-DIOXOLANEN: EIN NEUER WEG ZU DIENOLETHERN
Steinbeck, K.,Osterwinter, B.
, p. 1515 - 1518 (2007/10/02)
Cyclic acetals of β,γ-unsaturated carbonyl compounds may be deprotonated by NaH/DMSO.The resulting anions are unstable and give ring opening reactions to dienol ethers.